• Cambridge Industries USA, Inc. / Accelight Technologies, Inc. v. Applied Optoelectronics, Inc.No claims unpatentable
  PTAB · Jul 27, 2026 · IPR2025-01570 · APJ Monica S Ullagaddi · IPR · Final written decision

  The majority held claims 1–19 not shown unpatentable: Wang did not anticipate claims 1–10, and Wang with Xiong did not render claims 11–19 obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedOther

    “field of the ’690 Patent would have had at least (1) an undergraduate degree in electrical engineering, computer engineering, computer science, or a comparable field of study and (2) at least two years of experience with optical data communications or a comparable field of work.” Pet. 14 (citing Ex. 1003 ¶ 22). Petitioner also states that “[i]ndividuals having different educational backgrounds and supplemental experience might still be of ordinary skill in the art if such experience compensates for any deficiencies in education relative to the criteria stated above” and “[i]n some cases, additional education might be an acceptable substitute for some experience, or vice versa.” Id. Patent Owner does not dispute Petitioner’s characterization of the level of skill in the art. See e.g., PO Resp. 9. We adopt Petitioner’s unopposed definition of the level of ordinary skill in the art as it appears consistent with the disclosures of the ’690 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “Patent is self-explanatory and would have been recognized by a [person of ordinary skill in the art] as having plain and ordinary meanings.” Pet. 10. “Petitioner submits that no special constructions are required” because “the claim terms appear understandable in the context of the disclosure provided by the specification of the ’690 Patent.” Id. (citing Ex. 1003 ¶ 58). Patent Owner “agrees that the claim terms should be given their plain and ordinary meaning as understood by a [person of ordinary skill in the art].” PO Resp. 10. After reviewing the arguments and evidence before us, we determine that we do not need to expressly construe any claim term to resolve any controversy in the proceeding. Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 8

  • BurdenNot shown unpatentable

    “Also relevant to our analysis is that this is an anticipation ground and Petitioner is required to show that the reference discloses not only the elements of the claimed invention, but also discloses those elements as arranged in the claim. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008). Although our Institution Decision concluded that Petitioner had demonstrated a reasonable likelihood of prevailing with respect to its anticipation challenge to independent claim 1 applying Wang (Inst. Dec. 6), at this stage of the proceeding we are required to evaluate Petitioner’s challenges under a higher standard, the preponderance of evidence standard. For the foregoing reasons, we are not persuaded that Petitioner sufficiently establishes that claim 1 is unpatentable under 35 U.S.C. § 102 as anticipated by Wang by a preponderance of the evidence.” slip op. at 13

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “Wang discloses that “the isolator 100 is bonded to the substrate by means of an adhesive” in which “[t]he adhesive is not only used to fix the isolator 100 to the substrate, but also fills a gap between the isolator 100 and the substrate to improve the installation accuracy of the isolator 100.” Ex. 1006 ¶ 41 (emphasis added). Petitioner does not explain how filling in a gap between the isolator 100 and a substrate necessarily results in “each of the plurality of optical isolators [being] disposed substantially in parallel relative to each other,” as recited in claim 1. The cited portion in paragraph 43 references Figures 5 and 6, which depict Embodiment 1 of Wang and are reproduced below. Figures 5 and 6 of Wang depict isolators 100, base 311, and baffles 312. Although paragraph 44 of Wang states that “[t]he substrate includes a base 311, and baffles 312 and isolators 100 sequentially disposed on the base 311,” Petitioner does not sufficiently persuade us how Wang’s disclosure “sequentially disposed” isolators necessarily discloses that the isolators are “disposed substantially in parallel relative to each other” as recited in independent claim 1. Ex. 1006 ¶ 44. Although the cited portion in Figure 6 of Wang apparently shows a possibly parallel arrangement of Petitioner cites to Dr. Kirk’s Declaration, but Dr. Kirk does not opine on why cited portions of Wang necessarily disclose or depict the claimed “disposed substantially in parallel relative to each other” requirement. Ex. 1003 ¶¶ 73, 74; Ex. 1006 ¶¶ 41, 43, Figs. 6, 8, 10. At best, Dr. Kirk testifies that “a POSITA would have understood that Wang anticipates Claim 1.” Ex. 1003 ¶ 75. Also relevant to our analysis is that this is an anticipation ground and Petitioner is required to show that the reference discloses not only the elements of the claimed invention, but also discloses those elements as arranged in the claim. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008). Although our Institution Decision concluded that Petitioner had demonstrated a reasonable likelihood of prevailing with respect to its anticipation challenge to independent claim 1 applying Wang (Inst. Dec. 6), at this stage of the proceeding we are required to evaluate Petitioner’s challenges under a higher standard, the preponderance of evidence standard.” slip op. at 12

  Patent outcomesUS 10,788,690 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,788,690
• Cambridge Industries USA, Inc. / Accelight Technologies, Inc. v. Applied Optoelectronics, Inc.No claims unpatentable
  PTAB · Jul 27, 2026 · IPR2025-00437 · APJ Monica S Ullagaddi · IPR · Final written decision

  The majority held claims 1–19 not unpatentable: Wang did not establish anticipation of claims 1–10, and Wang with Xiong did not establish obviousness of claims 11–19.

  RulingsFinal written decision

  • BurdenNot shown unpatentable

    “Wang discloses that “the isolator 100 is bonded to the substrate by means of an adhesive” in which “[t]he adhesive is not only used to fix the isolator 100 to the substrate, but also fills a gap between the isolator 100 and the substrate to improve the installation accuracy of the isolator 100.” Ex. 1006 ¶ 41 (emphasis added). Petitioner does not explain how filling in a gap between the isolator 100 and a substrate necessarily results in “each of the plurality of optical isolators [being] disposed substantially in parallel relative to each other,” as recited in claim 1. The cited portion in paragraph 43 references Figures 5 and 6, which depict Embodiment 1 of Wang and are reproduced below. Figures 5 and 6 of Wang depict isolators 100, base 311, and baffles 312. Although paragraph 44 of Wang states that “[t]he substrate includes a base 311, and baffles 312 and isolators 100 sequentially disposed on the base 311,” Petitioner does not sufficiently persuade us how Wang’s disclosure “sequentially disposed” isolators necessarily discloses that the isolators are “disposed substantially in parallel relative to each other” as recited in independent claim 1. Ex. 1006 ¶ 44. Although the cited portion in Figure 6 of Wang apparently shows a possibly parallel arrangement of Petitioner cites to Dr. Kirk’s Declaration, but Dr. Kirk does not opine on why cited portions of Wang necessarily disclose or depict the claimed “disposed substantially in parallel relative to each other” requirement. Ex. 1003 ¶¶ 73, 74; Ex. 1006 ¶¶ 41, 43, Figs. 6, 8, 10. At best, Dr. Kirk testifies that “a POSITA would have understood that Wang anticipates Claim 1.” Ex. 1003 ¶ 75. Also relevant to our analysis is that this is an anticipation ground and Petitioner is required to show that the reference discloses not only the elements of the claimed invention, but also discloses those elements as arranged in the claim. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008). Although our Institution Decision concluded that Petitioner had demonstrated a reasonable likelihood of prevailing with respect to its anticipation challenge to independent claim 1 applying Wang (Inst. Dec. 6), at this stage of the proceeding we are required to evaluate Petitioner’s challenges under a higher standard, the preponderance of evidence standard.” slip op. at 12

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “Wang discloses that “the isolator 100 is bonded to the substrate by means of an adhesive” in which “[t]he adhesive is not only used to fix the isolator 100 to the substrate, but also fills a gap between the isolator 100 and the substrate to improve the installation accuracy of the isolator 100.” Ex. 1006 ¶ 41 (emphasis added). Petitioner does not explain how filling in a gap between the isolator 100 and a substrate necessarily results in “each of the plurality of optical isolators [being] disposed substantially in parallel relative to each other,” as recited in claim 1. The cited portion in paragraph 43 references Figures 5 and 6, which depict Embodiment 1 of Wang and are reproduced below. Figures 5 and 6 of Wang depict isolators 100, base 311, and baffles 312. Although paragraph 44 of Wang states that “[t]he substrate includes a base 311, and baffles 312 and isolators 100 sequentially disposed on the base 311,” Petitioner does not sufficiently persuade us how Wang’s disclosure “sequentially disposed” isolators necessarily discloses that the isolators are “disposed substantially in parallel relative to each other” as recited in independent claim 1. Ex. 1006 ¶ 44. Although the cited portion in Figure 6 of Wang apparently shows a possibly parallel arrangement of Petitioner cites to Dr. Kirk’s Declaration, but Dr. Kirk does not opine on why cited portions of Wang necessarily disclose or depict the claimed “disposed substantially in parallel relative to each other” requirement. Ex. 1003 ¶¶ 73, 74; Ex. 1006 ¶¶ 41, 43, Figs. 6, 8, 10. At best, Dr. Kirk testifies that “a POSITA would have understood that Wang anticipates Claim 1.” Ex. 1003 ¶ 75. Also relevant to our analysis is that this is an anticipation ground and Petitioner is required to show that the reference discloses not only the elements of the claimed invention, but also discloses those elements as arranged in the claim. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008). Although our Institution Decision concluded that Petitioner had demonstrated a reasonable likelihood of prevailing with respect to its anticipation challenge to independent claim 1 applying Wang (Inst. Dec. 6), at this stage of the proceeding we are required to evaluate Petitioner’s challenges under a higher standard, the preponderance of evidence standard. For the foregoing reasons, we are not persuaded that Petitioner” slip op. at 12

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot reached

    “challenge set forth in the Petition by citing the background of the ’690 patent and Dr. Willner’s deposition testimony and characterizing the same as “admissions” of Patent Owner in Petitioner’s Reply, such “evidence” did not form the basis of Appellant’s original position set forth in the Petition.6 Petitioner’s arguments that all of the components recited in claim 11 “were known in the prior art” or that Dr. Willner admitted the same are unpersuasive at least because the Petition did not set forth this position. Contrary to Petitioner’s arguments during the oral hearing, the Petition does not present challenges based on “Applicant Admitted Prior Art.” See generally Pet.” slip op. at 23

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “field of the ’690 Patent would have had at least (1) an undergraduate degree in electrical engineering, computer engineering, computer science, or a comparable field of study and (2) at least two years of experience with optical data communications or a comparable field of work.” Pet. 14 (citing Ex. 1003 ¶ 22). Petitioner also states that “[i]ndividuals having different educational backgrounds and supplemental experience might still be of ordinary skill in the art if such experience compensates for any deficiencies in education relative to the criteria stated above” and “[i]n some cases, additional education might be an acceptable substitute for some experience, or vice versa.” Id. Patent Owner does not dispute Petitioner’s characterization of the level of skill in the art. See e.g., PO Resp. 9. We adopt Petitioner’s unopposed definition of the level of ordinary skill in the art as it appears consistent with the disclosures of the ’690 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7

  Patent outcomesUS 10,788,690 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,788,690
• Cradlepoint, Inc. / Honeywell International, Inc. et al. v. Sisvel S.P.A.No claims unpatentable
  PTAB · Sep 29, 2025 · IPR2021-00580 · APJ Monica S Ullagaddi · IPR · Remand

  On remand, the Board held claims 1–10 not shown unpatentable under the Sachs anticipation and obviousness grounds because Sachs did not disclose the required timer stopping, and the new theories were not considered.

  RulingsRemand decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Whether Mr. Bates is a Person of Ordinary Skill in the Art In the Final Written Decision, we adopted Petitioner’s definition because “there does not appear to be a dispute that needs to be resolved.” FWD 8. Here, where Mr. Bates’ qualifications are challenged, we have reviewed the complete record including the parties’ arguments on remand and we find that Mr. Bates does not meet the requirements for a person of ordinary skill in the art according to Petitioner’s definition for level of ordinary skill in the art, which we adopted (see FWD 8). Notably, the panel adopted Petitioner’s definition of the level of ordinary skill in the Institution Decision (Paper 16, 8), and neither party challenged that determination during the trial, although Patent Owner did offer its own definition (PO Resp. 9). Mr. Bates has one degree: “a bachelor’s degree in Business Management.” Ex. 2001 ¶ 7. A degree in Business Management is not “a degree in electrical engineering or a similar discipline.” Pet. 35 (emphasis added). Accordingly, we disregard the testimony of Mr. Bates in rendering our findings and conclusions in this Decision. We note that, even if we did consider Mr. Bates’s testimony, the findings and conclusions rendered in this Decision would not change.” slip op. at 12

  • Expert testimonyPatent owner expert discountedDecided for petitioner

    “cover for his lack of education.” Pet. Remand Br. 4. Patent Owner disagrees and argues, inter alia, that “Mr. Bates was a pioneer in the cellular telecommunications field with more than five decades of practical and teaching experience.” PO Remand Resp. 5 (citing Ex. 2001 ¶¶ 8–23) (emphasis omitted); see id. at 3–4, 6. Whether Mr. Bates is a Person of Ordinary Skill in the Art In the Final Written Decision, we adopted Petitioner’s definition because “there does not appear to be a dispute that needs to be resolved.” FWD 8. Here, where Mr. Bates’ qualifications are challenged, we have reviewed the complete record including the parties’ arguments on remand and we find that Mr. Bates does not meet the requirements for a person of ordinary skill in the art according to Petitioner’s definition for level of ordinary skill in the art, which we adopted (see FWD 8). Notably, the panel adopted Petitioner’s definition of the level of ordinary skill in the Institution Decision (Paper 16, 8), and neither party challenged that determination during the trial, although Patent Owner did offer its own definition (PO Resp. 9). Mr. Bates has one degree: “a bachelor’s degree in Business Management.” Ex. 2001 ¶ 7. A degree in Business Management is not “a degree in electrical engineering or a similar discipline.” Pet. 35 (emphasis added). Accordingly, we disregard the testimony of Mr. Bates in rendering our findings and conclusions in this Decision. We note that, even if we did consider Mr. Bates’s testimony, the findings and conclusions rendered in this Decision would not change.” slip op. at 12

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for patent owner

    “C. Claim Construction The Federal Circuit determined that “the plain and unambiguous language of claim 1 requires that a method, to come within the claim, must perform both limitations 1[c] and 1[d] where their preconditions apply.” Sierra Wireless, 130 F.4th at 1022. We interpret the claims and analyze Petitioner’s unpatentability arguments under the Federal Circuit’s determination.” slip op. at 13

  • Strike new argumentNew argument disregardedDecided for patent owner

    “Petitioner was on notice, when Patent Owner’s Response was filed at the latest, that claim 1 could be construed as unconditionally requiring both limitations 1[c] and 1[d]. Indeed, Petitioner contended that it had shown both limitations “in single references.” Pet. Reply 5. Petitioner now seeks to shift its unpatentability contentions for limitation 1[c] from Figure 5 of Sachs to Figures 6 and 7. Petitioner’s new reliance on Figures 6 and 7 of Sachs is “a meaningfully distinct contention” from its position in both the Petition and the Reply. See Ariosa Diagnostics v. Verinata Health, Inc., 805 F.3d 1359, 1367 (Fed. Cir. 2015). We therefore find that Petitioner impermissibly presents new theories of unpatentability on remand. 3. Independent Claim 1 We decline to address Petitioner’s new theories of unpatentability proposed on remand concerning Sachs’s Figure 7. See Pet. Remand Br. 15– 20. Although Petitioner cites pages 59–61 of the Petition as discussing Figure 7 of Sachs (see Pet. Remand Br. 15), the cited discussion concerns dependent claims 5 and 10, not independent claims 1 and 8.” slip op. at 17

  Patent outcomesUS 7,869,396 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,869,396
• Interactive Communications International, Inc. v. Blackhawk Network Inc.No claims unpatentable
  PTAB · Feb 6, 2025 · IPR2023-01235 · APJ Bart A Gerstenblith · IPR · Final written decision

  Claims 1–6 were not shown unpatentable under either obviousness ground because Szrek did not disclose a pre-printed lottery ticket without lottery numbers associated at customer purchase.

  RulingsFinal written decision

  • PTAB / AIA Trials › Real party in interest / privityRpi dispute resolved for petitionerDecided for petitioner

    “real party in interest. Prelim. Resp. 1–2, 32–34. In the Institution Decision, we stated: To the extent Patent Owner seeks to pursue its argument that Linq3 is a real party of interest to Petitioner, even though no time bar under 35 U.S.C. § 315(b) has been asserted, Patent Owner may raise the issue of real party in interest again in its Patent Owner Response and the parties may brief and argue the issue during trial. Inst. Dec. 11. In its Patent Owner Response, Patent Owner did not raise the issue of challenging Petitioner’s identified real party in interest. See generally PO Resp. Thus, we need not address this issue further because we find that Patent Owner has waived any challenge to Petitioner’s identification of the real parties in interest in this proceeding. See Paper 12 (Scheduling Order), 9 (“Patent Owner is cautioned that any arguments not raised in the response may be deemed waived.”).” slip op. at 5

  • Skill levelSkill level petitioner adoptedDecided for patent owner

    “B. Level of Ordinary Skill in the Art Petitioner proposes that the level of ordinary skill in the art is an artisan with a working knowledge of POS activation systems and lottery systems that was gained through a mixture of training and work experience in the relevant field such as (i) having a Bachelor’s degree in computer science, computer communications, electrical engineering, or equivalent degree, coupled with at least three years of work experience; (ii) having a Master’s degree in computer science, computer communications, or electrical engineering, but having less work experience; or (iii) having no formal degree, but having experience in the relevant field of at least six years of work experience. Pet. 2–3 (citing Ex. 1003 ¶ 13).5 Patent Owner states that, “[f]or the purpose of this proceeding, Patent Owner adopts the Petition’s proposed definition of the level of ordinary skill in the art.” PO Resp. 19. 5 Petitioner proposes the same level of ordinary skill in the art that the Board adopted in PGR2020-00084. Pet. 2–3 (citing Ex. 1008, 11). We find that the parties’ agreed-upon level of ordinary skill in the art is consistent with the level of ordinary skill in the art reflected by the ’135 patent and the prior art of record. See Inst. Dec. 14; see Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995); In re Oelrich, 579 F.2d 86, 91 (CCPA 1978). Therefore, we adopt the parties’ agreed-upon level of ordinary skill in the art, as articulated above, in our consideration of the issues presently before us.” slip op. at 12

  • Claim Construction › Intrinsic evidence (Phillips canons) › Prosecution history disclaimer / disavowalTerm construed patent owner constructionDisclaimer foundDecided for patent owner

    “Following the block quote from Yacenda, the applicant then stated, “[b]ased on the foregoing, Yacenda’s system is directly opposite of the instant claims, as the instant claims require a ‘pre-printed lottery ticket’ which has no lottery numbers associated with it at the time of customer purchase.’” Ex. 1002, 76. This statement is clear and unmistakable. It (1) specifically states that “the instant claims require” and (2) then states what the claims require—a “‘pre-printed lottery ticket’ which has no lottery numbers associated with it at the time of customer purchase.” We fail to see how the applicant could have been more clear in stating a requirement of the Challenged Claims. And, by doing so, the applicant narrowed the scope of what would otherwise be encompassed in the meaning of “pre-printed lottery ticket” and therefore what would otherwise be encompassed in the scope of the Challenged Claims—a lottery ticket which has lottery numbers associated with it at the time of customer purchase.” slip op. at 27

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “We do not find Mr. Hutton’s testimony particularly helpful. First, we have addressed the points raised by his testimony in our discussion above because they are largely the same as the arguments raised in Petitioner’s Reply. Second, we find his testimony entitled to very little weight because he applies an incorrect understanding of the caselaw, which mirrors Petitioner’s incorrect and arguably misleading quotations of the Federal Circuit’s decision in Quest. In particular, in paragraph 5, Mr. Hutton states the following as his understanding of the law as it applies to prosecution disclaimer: “I also understand that in order to disclaim embodiments within the specification, the statements should have some indication that the applicant intended to surrender embodiments from the specification.” Ex. 1038 ¶ 5 (emphasis added). This then leads Mr. Hutton to state: “[t]hus, in my opinion, a [person of ordinary skill in the art] would not view applicant’s statements as a disclaimer, because the applicant never stated that they intended to surrender multiple embodiments described in the specification.” Id. ¶ 13 (emphasis added). As we explained above in responding to a similar argument by Petitioner, the caselaw does not require an applicant to expressly state whether a disclaimer excludes particular embodiments of the subject specification when disclaiming claim scope during prosecution. See Quest, 924 F.3d at 1229. And, as noted above, counsel for Petitioner agreed that such a statement explicitly disclaiming particular embodiments is not required. Tr. 12:18–13:17. Third, although we have considered Mr. Hutton’s testimony, we find it “less significant than the intrinsic record in determining the legally operative meaning of” “pre-printed lottery ticket.” Phillips, 415 F.3d at 1317. In particular, we are cognizant of the Federal Circuit’s guidance that we “should discount any expert testimony that is clearly at odds with the claim construction mandated by . . . the prosecution history.” Id. at 1318 (internal quotation omitted). In this instance, for the reasons explained above, we find that Mr. Hutton’s testimony is clearly at odds with the applicant’s arguments during prosecution and that his testimony is based on a misunderstanding of what is required by the governing caselaw for prosecution history disclaimer.” slip op. at 43

  Patent outcomesUS 9,865,135 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,865,135
• Netflix, Inc. v. Divx, LLCNo claims unpatentable
  PTAB · Feb 22, 2024 · IPR2020-00558 · APJ Iftikhar Ahmed · IPR · Remand

  The majority determined claims 1–24 were not shown unpatentable over Chen, Lindahl, and Hurst; the dissent would have found them obvious.

  RulingsRemand decision

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner

    “We determine Patent Owner’s reading of the claim limitation is the better one. The limitation begins with the verb “locating,” and it therefore makes sense that the clause would recite what is located (i.e., encryption information) and where it is located (i.e., within the requested portions of the selected stream of protected video). In other words, it is reasonable that the second and third clauses of the limitation both modify the first clause (for example, as could perhaps be expressed through the use of commas as “locating encryption information, that identifies encrypted portions of frames of video, within the requested portions of the selected stream of protected video”).10 On the other hand, Petitioner’s reading of the limitation, 10 In general, we recognize that the use of commas to set off phrases in claim drafting is not consistent. We included commas above to illustrate Patent Owner’s understanding of the claim limitation. allowing only the second clause to modify the first, while not unreasonable, makes less sense. That is, the encrypted information identifies the encrypted portions of frames, which in turn are within the requested portions of the selected stream of protected video. Reading the claim in its entirety, the encrypted portions of frames would be understood to be located within the requested portions of the stream; it does not seem necessary for the claim to expressly recite that aspect. For example, the very next limitation— limitation [m] of claim 1—refers to “each encrypted portion of the frames of video” but does not expressly recite “within the requested portions of the selected stream.” Ex. 1001, 27:58–60. Thus, when limitation [l] recites “within the requested portions of the selected stream,” it seems more likely that the clause refers to where that encrypted information is located rather than simply to indicate the obvious location of the encrypted portion of the frames of video. We therefore view Patent Owner’s reading of the claim language as the better one.” slip op. at 13

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundMixed

    “I am persuaded that the Petition demonstrates that one of ordinary skill in the art would have had a motivation to combine Chen, Lindahl, and Hurst, as asserted by Petitioner. As the Federal Circuit found, the Petition pointed to and relied upon the portions in Chen describing pre-Chen art, without scalability or FEC features that were part of what Chen describes as aspects of its own inventive system. Netflix, slip op. at 9–10 (citing Pet. 17– 19, 69–70). I agree with Petitioner that “Chen-924 teaches several embodiments that adaptively stream alternative representations of a video using partially encrypted container files.” Pet. 20 (citing Ex. 1010, 14:41– 15:60). I determine that Chen-924 provides support for the rationale provided in the Petition, and that one of ordinary skill in the art would have been motivated to combine Chen and Lindahl in view of the disclosure of Chen-924. As discussed above, the Petition does not rely solely on privacy concerns and improvements to efficiency as its motivation to combine the references. See Pet. 18–19 (specifying piracy concerns, improvements to the efficiency of adaptive streaming, optimization of the balance between bitrate and bandwidth, and improvements to the end-user experience with fast startup and seek). With respect to whether one of ordinary skill in the art would have” slip op. at 52

  • Strike new argumentNew argument disregardedDecided for petitioner

    “I agree with Petitioner that Patent Owner’s Remand Brief, specifically pages 1–7, attempt to address aspects of claim 1 for the first time on remand. I also agree that Patent Owner’s arguments attempt to recharacterize limitations [j] and [k] to raise issues that Patent Owner did not raise previously, in contravention of our Order that issues raised needed support from “where those issues were raised in previous briefings by the parties.” Paper 56, 2. I have addressed whether scalability and FEC are integral to how Chen operates above, as well as whether the Petition relies on those aspects, supra. The questions about how Chen operates and what portions of Chen are asserted in the ground of unpatentability were previously raised, but now are being considered or reconsidered, based on the Federal Circuit’s decision. In Patent Owner’s Remand Brief, pages 1–7, the citations to argument previously raised do not support the arguments now presented by Patent Owner on remand. As such, I determine Patent Owner’s new arguments fall outside the scope of remand, and I dismiss these arguments seeking to distinguish limitations [j] and [k] from the cited prior art combination.24” slip op. at 62

  • ExcludeMotion to exclude, grantedMixed

    “7 Patent Owner’s Brief on Remand recognizes that there are two arguments Patent Owner raised in its Patent Owner Response that were not addressed in the Final Written Decision. See PO Remand Br. 1 (citing PO Resp. 24–37 (the construction of “locating encrypted information . . . within requested portions”), 38–58 (referring to Patent Owner’s “common keys” argument)). 8 The Final Decision also addressed Petitioner’s Motion to Exclude (Paper 42). See Final Dec. 28–37 (granting-in-part, denying-in-part, and dismissing-in-part Petitioner’s Motion). Our determinations on that Motion were part of Petitioner’s appeal to the Federal Circuit. See Paper 52. Because the Federal Circuit did not address this aspect of the Final Written Decision and the Federal Circuit’s decision does not impact our previous rulings on the Motion, we maintain those rulings here. Additionally, on remand, Petitioner requested authorization to file a motion for sanctions, which we held in abeyance until the parties’ briefing on remand was complete. See Ex. 3003, 1. Petitioner requests sanctions because of the impropriety of Patent Owner’s remand brief, including new claim construction arguments for limitations [1j] and [1k], and prejudice to Petitioner. Id. at 3, 5. Although we reserved further consideration of Petitioner’s request, we expanded both the time and pages allowed for Petitioner’s responsive brief, and also allowed Petitioner to address any related issues in its responsive brief. Id. at 1. Having considered the parties’ briefing on remand, and given that we do not reach the claim construction arguments that Petitioner objected to in its request for authorization to file a motion for sanctions, we deny Petitioner’s request.” slip op. at 5

  Patent outcomesUS 10,225,588 not shown unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 10,225,588
• Cisco Systems, Inc. v. Ramot At Tel Aviv University, Ltd.No claims unpatentable
  PTAB · Feb 20, 2024 · IPR2022-01283 · APJ Monica S Ullagaddi · IPR · Final written decision

  The Board held claims 1–63 not shown unpatentable under either §103 ground because Petitioner did not sufficiently support the asserted digital mapping and delta limitations.

  RulingsFinal written decision

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable

    “Even assuming, arguendo, we were to credit Petitioner’s arguments that “it is sufficient for the prior art to render obvious a mapping exhibiting the deltas features; the prior art need not calculate the deltas themselves” (Pet. Reply 11) and that “Dr. Dallesasse agrees that modeling a Mach- Zehnder modulator as exhibiting a sinusoidal response—as Dr. Blumenthal did—was ‘reasonable’ ‘to a first order’” and “[a]ny other sources of non-linearity would merely be less significant, ‘second order effects,’” (id. at 12– 13), Petitioner does not sufficiently show that the sinusoidal response curve would look like the one Dr. Blumenthal proposes. Dr. Blumenthal asserts, without specifically or credibly explaining why, that a person of ordinary skill in the art would have selected a region of the sinusoidal response curve that includes an inflection point such that deltas both decrease and increase over some portion of the curve being linearized. See Ex. 1003 ¶¶ 173–174 (scaling and shifting a sinusoidal response curve so that the curve contains an inflection point within the linearized region, but without adequately explaining the evidentiary basis for these selections); id. ¶ 52 (opining that “in the close vicinity of the center of the positive or negative inflection regions, otherwise known as the Quadrature point, the modulator is almost would have included regions on both sides of an inflection point). If a person of ordinary skill would have selected a region of the sinusoidal response curve on only one side of an inflection point, the evidence does not suggest that such a mapping would satisfy both limitations 1.8 and 1.9. At best, Petitioner presents an “obvious to try rationale”: In addition to the reasons mentioned above, a POSITA would have found it obvious to try a mapping scheme in which entries in the look-up table as taught by Taraschuk are selected such that successively decreasing inputs correspond to digital output entries with either decreasing, increasing, or similar deltas between their values. Doing so would have involved choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success. In that regard, the deltas between values of the corresponding digital outputs can either increase, decrease, or stay the same. Accordingly, there are only three possible relationships between deltas of successive digital outputs. With so few possibilities, a POSITA would have found it obvious to try each of them. Pet. 52 (citing Ex. 1003 ¶ 196). The analysis for 13.8 is incorporated by reference in 13.9. See Pet. 53–54. Although there are three possible relationships between two, consecutive deltas, there are many possible sequences of deltas––Petitioner does not sufficiently show a finite number of solutions in its challenge. Petitioner’s obvious-to-try rationale is insufficient to show that a person of ordinary skill would have used a digital-to-digital-mapping in which there are regions in which the deltas are both decreasing and increasing. Moreover, Petitioner’s Reply includes positions not supported by a Reply Declaration from Dr. Blumenthal and thus, constitute attorney argument that is not sufficiently supported by evidence. See, e.g., Pet. Reply 14–15 (Petitioner arguing “Roberts’ design obviates the need for a separate,” slip op. at 32

  • Claim Construction › Intrinsic evidence (Phillips canons) › Prosecution history disclaimer / disavowalDisclaimer foundDecided for patent owner

    “Inst. Dec. 35 (citing Ex. 1006, 8:2, 8:8). Based on our review of the complete record developed during trial, we are persuaded to modify our preliminary determinations. For the reasons discussed below, we are persuaded that the scope of claim 1 does not encompass linear compensation methods effected by analog pre-distortion because the ’998 patent specification distinguishes analog pre-distortion (see Ex. 1001, 1:64–2:36) and the prosecution history specifically distinguishes analog pre-distortion from the claimed approach (see Ex. 3001, 172).6 We find persuasive Dr. Dallesasse’s testimony that “a person of ordinary skill in the art reading the [’998] patent would understand that th[e] [claimed] approach of mapping, based on the converter output pattern differs 6 Ex. 3001 is a portion of the prosecution history of U.S. Patent No. 11, 133, 872, a parent of the ’998 patent. Ex. 2022 ¶ 34 (citing Ex. 1001, 2:5–9 (’998 patent disclosing common, prior art solutions such as “an analog pre-distortion circuit to feed the modulator”); Ex. 1005, 2:53; Ex. 1006, 7:67–8:5, Fig. 6); Ex. 1001, 2:35– 37(the ’998 patent describing the need for a “digital to analog converter” that would “improve[] linearity of response without sacrificing efficiency or dynamic range” as in the common, prior art solutions). Dr. Dallesasse explains how “the prosecution history of the parent ’872 patent [illustrates] that when [Patent Owner] changed ‘correct for non-linearities’ to the more specific language ‘determined based on a pattern for actuating drive voltages that alters the linearity of an optical response of the modulator,’” “the Examiner then allowed the claims over a rejection based on Roberts,” which “suggests that there are ways to ‘correct for non-linearities’ that do not meet the amended claims, as the ’998 Patent itself admits.” Id. ¶ 79 (citing Ex. 1001, 2:5–9; Ex. 2009, 2; Ex. 1010, 16–48). During prosecution, Patent Owner argued: Roberts does not disclose a “digital-to-digital mapping,” where, “for a given plurality of N digital input data bits, the mapping to the corresponding M digital output data bits is determined based on a pattern for actuating drive voltages that alters the linearity of an optical response of the modulator,” as recited in amended claim 1. Instead, the linear compensation in Roberts is performed pursuant to a compensation function c(t) when the Vx(n) multi-bit sample streams are generated. Importantly, this linear compensation in Roberts occurs before the mapping of Vx(n) to Sx(n). As a result, the mapping between Vx(n) to Sx(n) in Roberts, such as the mapping shown in Table 1 of Roberts, is not a part of the linear compensation operation performed in Roberts. Ex. 3001, 172 (emphasis added). We interpret the quoted passage to exclude analog pre-distortion because we interpret the argument distinguishing distortion techniques––in particular, those accomplished by analog compensation function, c(t). Id. Both the ’998 patent and Patent Owner’s arguments during prosecution support Dr. Dallesasse’s testimony and Patent Owner’s position that the scope of claim 1 does not encompass linear compensation methods effected by analog pre-distortion.” slip op. at 34

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “limitation 1.9. This is because the idealized sinusoidal curves that form the basis of Dr. Blumenthal’s analysis lack a sufficient showing of relevance to the teachings of Taraschuk cited by Petitioner. Patent Owner persuades us that Petitioner does not point to any basis for a LUT having the recited deltas except for Dr. Blumenthal’s analysis. Although Wright generally teaches compensating for mismatches, Dr. Blumenthal’s analysis fills in limitations 1.8 and 1.9––Petitioner does not set forth a sufficiently supported reason for using the specific values recited in limitations 1.8 and 1.9. Even assuming, arguendo, we were to credit Petitioner’s arguments that “it is sufficient for the prior art to render obvious a mapping exhibiting the deltas features; the prior art need not calculate the deltas themselves” (Pet. Reply 11) and that “Dr. Dallesasse agrees that modeling a Mach- Zehnder modulator as exhibiting a sinusoidal response—as Dr. Blumenthal did—was ‘reasonable’ ‘to a first order’” and “[a]ny other sources of non-linearity would merely be less significant, ‘second order effects,’” (id. at 12– 13), Petitioner does not sufficiently show that the sinusoidal response curve would look like the one Dr. Blumenthal proposes. Dr. Blumenthal asserts, without specifically or credibly explaining why, that a person of ordinary skill in the art would have selected a region of the sinusoidal response curve that includes an inflection point such that deltas both decrease and increase over some portion of the curve being linearized. See Ex. 1003 ¶¶ 173–174 (scaling and shifting a sinusoidal response curve so that the curve contains an inflection point within the linearized region, but without adequately explaining the evidentiary basis for these selections); id. ¶ 52 (opining that “in the close vicinity of the center of the positive or negative inflection regions, otherwise known as the Quadrature point, the modulator is almost would have included regions on both sides of an inflection point). If a person of ordinary skill would have selected a region of the sinusoidal response curve on only one side of an inflection point, the evidence does not suggest that such a mapping would satisfy both limitations 1.8 and 1.9. At best, Petitioner presents an “obvious to try rationale”: In addition to the reasons mentioned above, a POSITA would have found it obvious to try a mapping scheme in which entries in the look-up table as taught by Taraschuk are selected such that successively decreasing inputs correspond to digital output entries with either decreasing, increasing, or similar deltas between their values. Doing so would have involved choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success. In that regard, the deltas between values of the corresponding digital outputs can either increase, decrease, or stay the same. Accordingly, there are only three possible relationships between deltas of successive digital outputs. With so few possibilities, a POSITA would have found it obvious to try each of them. Pet. 52 (citing Ex. 1003 ¶ 196). The analysis for 13.8 is incorporated by reference in 13.9. See Pet. 53–54. Although there are three possible relationships between two,” slip op. at 32

  • ExcludeMotion to exclude, deniedDenied

    “IV. MOTION TO EXCLUDE Patent Owner requests that we exclude Petitioner’s Exhibits 1031 through 1038 submitted with Petitioner’s Reply. Paper 25, 1. Petitioner opposes. Paper 27. As we do not rely on any of these exhibits in rendering the findings and conclusions in this Decision, Patent Owner’s motion is moot.” slip op. at 40

  Patent outcomesUS 11,342,998 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 11,342,998
• Cisco Systems, Inc. v. Ramot At Tel Aviv University, Ltd.No claims unpatentable
  PTAB · Oct 3, 2023 · IPR2022-00576 · APJ Monica S Ullagaddi · IPR · Final written decision

  Claims 13, 14, and 23–29 were not shown unpatentable as obvious over Roberts and Taraschuk, with or without Wright, because the asserted combinations did not teach or suggest the claimed delta features.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “We do not discern a substantial difference between the parties’ definitions for the level of ordinary skill in the art. Instead, we determine that the parties’ definitions are substantially similar. We adopt Petitioner’s definition of the level of skill in the art, which is consistent with the disclosure of the ’872 patent and asserted prior art of record. The findings and conclusions rendered in this Decision would not change had we adopted Patent Owner’s definition.” slip op. at 9

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “We need not construe any claim term in our Decision in order to resolve the issues before us. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (explaining that construction is needed only for terms that are in dispute, and only as necessary to resolve the controversy).” slip op. at 9

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable

    “for a LUT having the recited deltas except for Dr. Blumenthal’s analysis. Although Wright generally teaches compensating for mismatches, Dr. Blumenthal’s analysis fills in limitations 13.8 and 13.9––Petitioner does not set forth a sufficiently supported reason for using the specific values recited in limitations 13.8 and 13.9. At best, Petitioner presents an “obvious to try rationale”: In addition to the reasons mentioned above, a POSITA would have found it obvious to try a mapping scheme in which entries in the look-up table as taught by Taraschuk are selected such that successively decreasing inputs correspond to digital output entries with either decreasing, increasing, or similar deltas between their values. . . . Doing so would have involved choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success. In that regard, the deltas between values of the corresponding digital outputs can either increase, decrease, or stay the same. Accordingly, there are only three possible relationships between deltas of successive digital outputs. With so few possibilities, a POSITA would have found it obvious to try each of them. Pet. 59 (citing Ex. 1003 ¶ 265). The analysis for 13.8 is incorporated by reference in 13.9. See Pet. 60. Although there are three possible relationships between two, consecutive deltas, there are many possible sequences of deltas––Petitioner does not sufficiently show a finite number of solutions in its challenge.” slip op. at 30

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “We agree with Patent Owner’s argument that the portions of Taraschuk in column 7, lines 61–67 and column 8, lines 13–15 cited by Petitioner in its challenge to claim 13 teach “an end-to-end approach” “because that calculation involves predistortion of the input M-bit word by subtracting a digitized analog sample of the ultimate output,” and as such, teach “[a]n approach that necessarily does one combined correction for all of the nonlinearities that occur in-between those ends—whether bit mismatches in the digital logic or non-linearities in the Mach-Zehnder modulator.” PO Sur-reply 18 (citing PO Resp. 30–36; Ex. 2018 ¶¶ 48, 49, 85–87, 89, 103; Ex. 1006, 7:34–39, 7:61–67). We further agree with Patent Owner’s assertion that [Patent Owner] and Prof. Dallesasse are not suggesting that Dr. Blumenthal should model the logic-level mismatches. But rather pointing out that calculating an idealized sinusoidal response in isolation is not obvious (or flowing naturally) from a reference that can only deal with compensating the combined response of the modulator and digital logic mismatches together—via real-time pre-distortion fed back from the ultimate output and subtracted from the input. Dallesasse testifies that Dr. Blumenthal starts with the premise that all that is required is deriving a complementary function to the sinusoidal response. . . . But this ignores that the disclosure of Taraschuk describes compensating “the sinusoidal response of the modulator” and “logic level mismatches through the D/A converter” together. . . . Dr. Blumenthal’s complementary sinusoidal correction curve won’t do that. The combined non-linearity from the multiple sources likely won’t simply be evenly sinusoidal. Taraschuk does not disclose, or in my opinion render obvious, any pre-calculation solution. (Taraschuk mentions a real-time analog feedback loop to pre-distort, which would not involve pre-calculation.) And it certainly does not suggest one that could deal with the combined and likely complex non-linearities described.” slip op. at 28

  Patent outcomesUS 11,133,872 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,133,872
• Cisco Systems, Inc. v. Ramot At Tel Aviv University, Ltd.No claims unpatentable
  PTAB · Sep 29, 2023 · IPR2022-00575 · APJ Monica S Ullagaddi · IPR · Final written decision

  Claims 1–12, 15–22, and 30 were not shown unpatentable under § 103 over Roberts and Taraschuk because the combination did not teach or suggest the claimed mapping.

  RulingsFinal written decision

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “Inst. Dec. 25–26 (citing Ex. 1006, 8:2, 8:8, 6:61–65; Ex. 1003 ¶ 147; Prelim. Resp. 46). Based on our review of the complete record developed during trial, we are persuaded to modify our preliminary determinations. For the reasons discussed below, we are persuaded that the scope of claim 1 does not encompass linear compensation methods effected by analog pre-distortion because the ’872 patent specification distinguishes analog pre-distortion (see Ex. 1001, 1:55–2:34) and the prosecution history specifically distinguishes analog pre-distortion from the claimed approach (see Ex. 1002, 172). We find persuasive Dr. Dallesasse’s testimony that “a person of ordinary skill in the art reading the [’872] patent would understand that th[e] [claimed] approach differs from pre-distortion based on real-time measured analog modulator output.” Ex. 2018 ¶ 33 (citing-in-part Ex. 1001, 2:3–7 (’872 patent disclosing common, prior art solutions such as “an analog predistortion circuit to feed the modulator”)); see also Ex. 1001, (the ’872 patent describing the need for a “digital to analog converter” that would “improve[] linearity of response without sacrificing efficiency or dynamic range” as in the common, prior art solutions). Dr. Dallesasse explains how “the prosecution history of the ’872 patent [illustrates] that when [Patent Owner] changed ‘correct for non-linearities’ to the more specific language ‘determined based on a pattern for actuating drive voltages that alters the linearity of an optical response of the modulator,’” “the Examiner then allowed the claims over a rejection based on Roberts, which “suggests that there are ways to ‘correct for non-linearities’ that do not meet the amended Ex. 2009, 2; Ex. 2003). During prosecution, Patent Owner argued: Roberts does not disclose a “digital-to-digital mapping,” where, “for a given plurality of N digital input data bits, the mapping to the corresponding M digital output data bits is determined based on a pattern for actuating drive voltages that alters the linearity of an optical response of the modulator,” as recited in amended claim 1. Instead, the linear compensation in Roberts is performed pursuant to a compensation function c(t) when the Vx(n) multi-bit sample streams are generated. Importantly, this linear compensation in Roberts occurs before the mapping of Vx(n) to Sx(n). As a result, the mapping between Vx(n) to Sx(n) in Roberts, such as the mapping shown in Table 1 of Roberts, is not a part of the linear compensation operation performed in Roberts. Ex. 1002, 172 (emphasis added). We interpret the quoted passage to exclude analog pre-distortion because we interpret the argument distinguishing Robert’s compensation as happening “before the mapping” to refer to pre-distortion techniques––in particular, those accomplished by analog compensation function, c(t). Id. Both the ’872 patent and Patent Owner’s arguments during prosecution support Dr. Dallesasse’s testimony and Patent Owner’s position that the scope of claim 1 does not encompass linear compensation methods effected by analog pre-distortion.” slip op. at 21

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable

    “mapping is based on an analog feedback loop, by . . . quoting from the reference and leaving out the very next sentence” has merit. Sur-Reply 8 (citing Pet. Reply 23). Petitioner does not sufficiently address the cited teachings and in particular, Taraschuk’s teachings of calculating a difference between a “sampled analog output signal (S) and corresponding M-bit word” to a calculate a mapping “required to obtain the desired output analog signal level.” Ex. 1006, 7:34–39. We are persuaded Petitioner does not sufficiently rebut Patent Owner’s contention that Roberts’ and Taraschuk’s teachings of linear compensation are implemented by analog pre-distortion. Petitioner cannot ignore these teachings of Taraschuk and consider only the portions that support its challenge. See Pet. Reply 17 (citing Pet. 43–45; Ex.1006, 7:56–60) (“Patent Owner’s emphasis on Taraschuk’s digital feedback loop is also misplaced because the Petition simply relied on Taraschuk’s linearizer 44 as a discrete, known device for performing non-linear compensation of a Mach-Zehnder modulator.” (emphasis added)). Petitioner cannot set forth the teachings of Taraschuk in such a piecemeal sufficiently explain why the converter of Taraschuk relies on analog pre-distortion, or explain why analog pre-distortion is encompassed by the invention recited in independent claim 1, Petitioner does not sufficiently carry its burden.” slip op. at 25

  • Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightNot shown unpatentableNot shown unpatentable

    “Second, Petitioner concludes that “a POSITA would have found it obvious to map input bits to output bits within the look-up table such that the output bits correspond to voltage values to be transmitted to electrodes of an optical modulator,” but offers no support other than Robert’s teaching that the DSP’s output is a multi-bit parallel binary signal. See id. at 51 (citing Ex. 1005, 6:40–42). That is, the sole basis for Petitioner’s conclusion that it would have been obvious to perform the claimed method is that the output is the same. Id. This is impermissible hindsight. Third, Petitioner essentially argues that a person would have found it obvious to perform the mapping because Taraschuk teaches a look-up table and non-linear compensation. Id. at 51–52. Yet the claim recites how the mapping is performed, which is left unaddressed by Petitioner. Id. That is, Petitioner has not shown where Taraschuck teaches mapping a given number look-up table, so that the output bits compensate for the non-linear effects of the optical modulator. Id. at 52. Rather, Petitioner provides a piecemeal analysis that uses the ’872 patent’s specification as a blueprint to pull together a look-up table, non-linear compensation, and a modulator to arrive at the claimed invention. See id. Thus, all three rationales for limitation 1.9 are deficient. See PO Resp. 27.” slip op. at 30

  • Skill levelSkill level petitioner adoptedOther

    “We do not discern a substantial difference between the parties’ definitions for the level of ordinary skill in the art. Instead, we determine that the parties’ definitions are substantially similar. We adopt Petitioner’s definition of the level of skill in the art, which is consistent with the disclosure of the ’872 patent and asserted prior art of record. The findings and conclusions rendered in this Decision would not change had we adopted Patent Owner’s definition.” slip op. at 8

  Patent outcomesUS 11,133,872 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,133,872
• Hope Medical Enterprises, Inc. v. Fennec Pharmaceuticals, Inc.No claims unpatentable
  PTAB · Sep 1, 2023 · IPR2022-00125 · APJ Julia Heaney · IPR · Final written decision

  The Board granted the revised noncontingent motion to amend, canceled claims 18 and 20, and entered substitute claims 28 and 29, which were not proven obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner, relying on the testimony of Dr. Rogers, contends that a person of ordinary skill in the art would have [had] a bachelor’s degree or equivalent in any of the pharmaceutical sciences with at least 5 years of experience in solid state chemistry; a master’s degree in any of the pharmaceutical sciences with at least 3 years of experience in solid state chemistry; or a Ph.D. in any of the pharmaceutical sciences with 1 year of experience in solid state chemistry. Pet. 8 (citing Ex. 1008 ¶¶ 24–28). Petitioner further states that such “[a] person could also have qualified as a [person of ordinary skill in the art] with some combination of (1) more formal education and less technical or professional experience or (2) less formal education and more technical or professional experience.” Id. Patent Owner does not dispute Petitioner’s proposed definition of a person of ordinary skill. See generally MTA, RMTA. Having considered the parties’ arguments and evidence, we adopt the level of ordinary skill in the art proposed by Petitioner, because it is consistent with the disclosures of the ’363 patent and the prior art of record. We note, however, that neither party contends that the outcome of this case would differ based on our adoption of any particular definition of a person of ordinary skill in the art.” slip op. at 12

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “In our Preliminary Guidance, we construed “for a pharmaceutical composition” to mean “in combination with pharmaceutically acceptable excipients,” based on the ’363 patent’s definition providing that “[t]he terms ‘formulation’ or ‘pharmaceutical composition’ as used herein refers to the drug in combination with pharmaceutically acceptable excipients.” Prelim. Guid. 5–6 (citing Ex. 1001, 12:26–28; Ex. 2010, 17:11–12; Ex. 2011, 26:26– 27). We also encouraged the parties to address whether “for a pharmaceutical composition,” which appears in the preamble of substitute claims 28 and 29, is limiting, as opposed to a statement of intended use or purpose. Id. at 6. Following our Preliminary Guidance, the parties submitted further arguments concerning the term “for a pharmaceutical composition.” Patent Owner argues the term requires that the claimed process provide STS that is sufficiently pure for use in a pediatric patient (see RMTA 8–11) and that the word “drug” in the ’363 patent’s definition of “pharmaceutical composition” requires that the anhydrous STS is of sufficient purity for pharmaceutical use. Reply RMTA 3. Petitioner argues that the construction set forth in our Preliminary Guidance was correct. See Sur-reply RMTA 2–3. Having considered the arguments and evidence, we do not further construe the term “for a pharmaceutical composition” in this Decision because, as discussed in our analysis of obviousness below, it is not necessary to construe the term in order to determine whether Petitioner has met its burden of demonstrating by a preponderance of the evidence that proposed substitute claims 28 and 29 are unpatentable. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 13

  • PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, grantedGranted

    “1. Reasonable Number of Substitute Claims A motion to amend must “propose a reasonable number of substitute claims.” 35 U.S.C. § 316(d)(1)(B); see 37 C.F.R. § 42.121(a)(3) (“A motion to amend may cancel a challenged claim or propose a reasonable number of substitute claims.”). Patent Owner proposes the same number of substitute claims as the original challenged claims that are cancelled, i.e., a one-to-one substitution for a total of two substitute claims. MTA 2; RMTA. “There is a rebuttable presumption that a reasonable number of substitute claims per challenged claim is one (1) substitute claim.” Lectrosonics, Paper 15 at 4; see 37 C.F.R. § 42.121(a)(3). Petitioner does not argue otherwise. See generally Opp. RMTA. Therefore, we determine that Patent Owner proposes a reasonable number of substitute claims. 2. Support in the Original Disclosure Patent Owner has identified written description support in the originally filed disclosure of the ’363 patent for the new limitations added for the proposed substitute claims. See RMTA 5–8. We have reviewed Patent Owner’s assertions of support in the original disclosure for the proposed revised substitute claims and determine that sufficient support exists. Petitioner does not argue otherwise. See generally Opp. RMTA. Therefore, we determine that Patent Owner has met this requirement. 3. Respond to a Ground of Unpatentability “A motion to amend may be denied where . . . [t]he amendment does not respond to a ground of unpatentability involved in the trial.” 37 C.F.R. § 42.121(a)(2)(i). Patent Owner asserts that the proposed revised substitute claims are patentable over the combination of references that forms the basis of the obviousness ground on which we instituted trial. RMTA 12–13. Petitioner does not argue otherwise. See generally Opp. RMTA. Therefore, we determine that Patent Owner has met this requirement. 4. Scope of the Claims Patent Owner asserts that the proposed revised substitute claims do not enlarge the scope of original claims 18 and 20. RMTA 5. We have reviewed Patent Owner’s assertion that the purity amendments of proposed revised substitute claims 28 and 29 narrow the claims’ scope. Id. Petitioner does not argue otherwise. See generally Opp. RMTA. Therefore, we determine that Patent Owner has met this requirement.” slip op. at 17

  • BurdenNot shown unpatentable

    “determine the evidence relied on by Petitioner does not support Petitioner’s position that a person of ordinary skill in the art would have been motivated to combine Levenson, Sherman, Edwards, and USP. Petitioner’s contention that it would have been obvious to a person of ordinary skill in the art to combine the teachings of Levenson with Sherman is based on Dr. Rogers’s testimony that “[b]oth references disclose synthesis of sodium thiosulfate pentahydrate.” Ex. 1008 ¶ 151; see Pet. 36, 38. Dr. Rogers further testified it would have been obvious to add Edwards’s dehydrating step to the preparation of STS pentahydrate “which is obtained following the teachings of Levenson and Sherman” because “Edwards itself discloses dehydrating [STS] pentahydrate.” Id. ¶ 154. The Petition included these arguments even though they were inconsistent with Petitioner’s previous statement, during the Sherman prosecution, that Levenson taught STS heptahydrate, and therefore “does not provide any teaching with respect to [STS] pentahydrate.” Ex. 2013, 97. This prior inconsistent statement undercuts Petitioner’s rationale for combining Levenson, Sherman, and Edwards in this proceeding. Moreover, Petitioner’s rationale for combining the references in this proceeding is inconsistent with its statements about Levenson during the Sherman prosecution. Recognizing this inconsistency, Petitioner now takes the position that the Petition and Dr. Rogers’s testimony were incorrect. Paper 32; see Tr. 21:14–22:7, 59:1–2 (reemphasizing that “Petitioner maintains the statements that it made in the Sherman prosecution regarding Levenson”). Petitioner attempts to rationalize the inconsistency between its statements in the Sherman prosecution (including that “Levenson does not provide any teaching with respect to [STS] pentahydrate”) and its position in this proceeding by arguing that Dr. Rogers relies on Levenson as teaching surface activation “regardless of any particular hydrates Levenson discloses.” Tr. 22:8–9. That argument is not persuasive, because Dr. Rogers’s declaration clearly states the primary reason for his opinion that it would have been obvious to a person of ordinary skill in the art to combine the teachings of Levenson with Sherman: “[b]oth references disclose synthesis of sodium thiosulfate pentahydrate.” Ex. 1008 ¶ 151. Contrary to Petitioner’s argument, Dr. Roger’s reliance on the surface activation teachings of Levenson is because he believes that both references pertain to STS pentahydrate; the surface activation teachings are not stated as an independent reason to combine the references. Id. Petitioner provides no further explanation of how a person of ordinary skill in the art would have been motivated to combine Levenson’s teachings regarding manufacture of STS heptahydrate with Sherman’s and Edwards’s teachings regarding STS pentahydrate, or how a person of ordinary skill would have regarded the difference between STS hydrates. Dr. Rogers’s acknowledgement of stability differences among STS hydrates highlights the insufficiency of Petitioner’s showing in this regard. See Ex. 2005, 35, 39. Having changed its position at the close of trial and having effectively withdrawn Dr. Rogers’s testimony as to similarities between Levenson and” slip op. at 24

  Patent outcomesUS 10,792,363 not shown unpatentable
  Claim constructioncites KSR · Graham
  Patents in suitUS 10,792,363
• Honeywell International, Inc. / TCT Mobile (US) Inc. et al. v. 3g Licensing S.A.No claims unpatentable
  PTAB · Nov 14, 2022 · IPR2021-00908 · APJ Russell E Cass · IPR · Final written decision

  Petitioner failed to prove claims 1, 2, 4–7, 9–13, and 15–23 unpatentable as obvious over Philips46 alone or Philips46 and Nokia.

  RulingsFinal written decision

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “A claim “shall be construed using the same claim construction standard that would be used to construe the claim in a civil action under 35 U.S.C. § 282(b).” 37 C.F.R. § 42.100(b) (2020). Neither party proposes a construction of any claim terms. Pet. 29; PO Resp. 15. We determine that it is not necessary to provide an express interpretation of any claim terms for purposes of this Decision. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017); Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”).” slip op. at 9

  • Skill levelSkill level board ownDecided for patent owner

    “In our Institution Decision, we adopted Petitioner’s assessment of the level of skill in the art as including a Bachelor’s degree in electrical engineering, computer engineering, or a similar discipline with approximately two years of signal processing experience, which is supported by the declaration of Dr. Clark and the prior art of record. Inst. Dec. 12 (citing Ex. 1002 ¶¶ 70–72). We also agreed with Patent Owner that a combination of more experience in the field and less education or more education and less experience in the field may also suffice. Id. In its Patent Owner Response, Patent Owner states that it does not object to the level of ordinary skill we adopted in the Institution Decision. PO Resp. 9. For purposes of this Final Written Decision, we adhere to the level of ordinary skill adopted in our Institution Decision, which is consistent with the disclosures of the ’718 patent and the asserted prior art.” slip op. at 10

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundReasonable expectation not foundNot shown unpatentable

    “First, we find that Petitioner has not sufficiently shown that one of ordinary skill would have been motivated to swap the last two bits in the last row of the Philips46 table in order to provide more protection to the most significant bit (MSB). Even if we were to agree with Petitioner that one of ordinary skill would have understood that swapping the last two bits would have provided more protection to the MSB, Petitioner has not sufficiently shown that one of ordinary skill would have believed that such a change would be desirable. Patent Owner introduces evidence from Dr. Smith and the ’781 patent that there was “a tradeoff between BER and RMS error” and that “efforts to minimize RMS error and to minimize BER produce conflicting and incompatible results.” Ex. 1001, 11:38–44; Ex. 2006 ¶¶ 13, 43. These conflicting results are supported by the ’718 patent specification’s comparison of various codes (represented by C1, C2, embodiment 2, and embodiment 3), which found that the embodiment that had the best BER performance (C1) had the worst RMS error performance, and the embodiment with the best RMS error performance (embodiment 3) had the worst BER performance. Ex. 1001, 11:48–51, 11:58–61. We also find credible Dr. Smith’s testimony that “[a]dding all protection to just the MSB removes protection for all other bits,” which would be expected to reduce BER performance. Ex. 2006 ¶ 16.” slip op. at 26

  Patent outcomesUS 7,319,718 not shown unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,319,718

Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.