• 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
• Go1 Pty, Ltd. v. Opensesame, Inc.No claims unpatentable
  PTAB · Feb 26, 2024 · IPR2022-01439 · APJ Stacy B Margolies · IPR · Final written decision

  Claims 1–16 were not shown unpatentable because Petitioner failed to establish that the prior art taught or rendered obvious the required post-verification provision of a location designator.

  RulingsFinal written decision

  • BurdenNot shown unpatentable

    “that includes a URL pointing to the media server to access the content. Ex. 1006 ¶¶ 77–82. However, that URL is placed in the redirector file before the web server compares authorization tickets to determine whether the user is licensed to the requested content. Id. ¶¶ 77–84; Ex. 2002 ¶¶ 107– 124. According to Madison, a redirector file is generated first, sent back to the user, and then when the user uses the redirector file to access the content, the media server determines whether or not to grant the end user access to the request. Ex. 1006 Fig. 5, ¶¶ 77–84. It is this last step of determining whether to grant access that Petitioner relies on for teaching the “verifying a validity status of the user license” limitation of claim 1. Pet. 41–43. Thus, Madison does not disclose “upon verifying the validity of the license,” causing a licensing server “to provide to a proxy a location designator” for accessing the content player. See Ex. 2002 ¶¶ 115–120, 123–124.” slip op. at 27

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “licensing/reporting server.” Ex. 1002 ¶ 136. Dr. Almeroth then points to the URL link in the redirector file and states that the user device in Madison uses the URL in the redirector file to direct the user device to the media server. Id. Neither of these statements address the requirement in the claim that, “upon verifying the validity of the license,” the instructions are configured to “cause the licensing/reporting server to provide to the proxy” the URL. Dr. Almeroth then testifies that a person of ordinary skill in the art “would have understood that, in the combined system, the content would be accessed via Sperle’s content player 208, such that the reference to the media server in the ASX URLs would point to the network location of Sperle’s content player 208.” Id. This statement addresses only the last portion of the claim limitation. Thus, the Petition and supporting evidence (Dr. Almeroth’s declaration testimony) do not address the entirety of the location designator claim limitation. On reply, Petitioner relies on additional testimony from Dr. Almeroth. Pet. Reply 13 (citing Ex. 1024 ¶¶ 90–91). Dr. Almeroth opines that “[t]here is no practical difference between the request for streaming media content, in combination with an authorization ticket that is provided back to the network for verification; and ‘request[ing] verification . . . of the validity status of a license to the specific instance of content.’” Ex. 1024 ¶ 90. According to Dr. Almeroth, a person of ordinary skill in the art “would view them as insubstantially different, if at all, and would still be motivated to combine Sperle and Madison.” Id. Dr. Almeroth adds that “there is no reason why the combination would not be an obvious design choice.” Id. Dr. Almeroth also testifies that “there is no clear significance to the fact that the ‘steps in Madison’ are in ‘reverse order compared to the claim element’” and that a skilled artisan “would view them as insubstantially different, if different at all, and would still be motivated to combine Sperle and Madison.” Id. ¶ 91. Dr. Almeroth’s testimony does not persuasively show why a person of ordinary skill in the art—considering the teachings of Sperle and Madison— would have performed the redirector file creation and authorization differently from what Madison teaches such that, upon determining that the user was authorized, the URL is provided from the licensing server to the proxy, as required by the claim. Petitioner relies on Madison’s disclosures regarding the redirector file for teaching other elements of the claim—the proxy and the verifying of the validity status of the user license—yet fails to provide a persuasive analysis for why a skilled artisan would go beyond what is taught in Madison and provide the URL to the proxy “upon verifying the validity of the license” rather than prior to that verification. Dr. Almeroth does not point to design considerations at the time of the invention to show why the differences between the art and claimed invention are “insubstantially different” or that the modification would merely be a “design choice.” Ex. 1024 ¶¶ 90–91. Rather, Dr. Almeroth provides conclusory testimony that is not supported by any evidence contemporaneous with the claimed invention. In fact, Dr. Almeroth does not provide any technical explanation for his generic conclusions. The evidence of record is simply insufficient for us to conclude that an ordinarily skilled artisan would have come up with the claimed invention in view of the teachings of Sperle and Madison.” slip op. at 28

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “for delivering educational content over networks such as the Internet, or the equivalent, with additional education substituting for experience and vice versa.” Pet. 8 (citing, e.g., Ex. 1002 ¶ 41). Patent Owner states that it “generally agrees with Petitioner’s proposed level of ordinary skill in the art.” PO Resp. 10. Patent Owner adds that “the level of ordinary skill in the art is more often premised not upon obtaining a formal degree in computer engineering, computer science, etc., but through years of hands-on experience in the field, often coupled with formal coursework that may or may not lead to a degree in the enumerated fields.” Id. at 11 (citing, e.g., Ex. 2002 ¶ 18). We determine that the level of ordinary skill proposed by Petitioner is consistent with the challenged patent and the asserted prior art, and we therefore adopt that level.” slip op. at 10

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

    “Neither party proposes express constructions for any claim terms. See Pet. 8 (“To resolve the particular grounds presented in this Petition, Petitioner does not believe that any term requires explicit construction.”); PO Resp. 11 (“Patent Owner believes that the patent claims at issue can be interpreted without the need for the formal construction of any claim terms.”). We determine that no claim terms require express construction in order to analyze the patentability issues presented.” slip op. at 11

  Patent outcomesUS 8,784,113 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 8,784,113
• Netflix Inc. / Hulu, LLC v. Divx, LLCNo claims unpatentable
  PTAB · Sep 9, 2021 · IPR2020-00646 · APJ Iftikhar Ahmed · IPR · Final written decision

  Claims 1, 5, 8, 9, 13–15, 18, and 21–23 were not shown unpatentable because Kaku was not established as analogous art.

  RulingsFinal written decision

  • Obviousness (§103) › Analogous artNot shown unpatentableNon analogous artNot shown unpatentable

    “A reference is considered analogous prior art: (1) if the reference is from the same field of endeavor as the claimed subject matter, or (2) if “the reference still is reasonably pertinent to the particular problem with which the inventor is involved,” even though the reference is not within the field of the inventor’s endeavor. In re Bigio, 381 F.3d at 1325. The field of endeavor test asks if the structure and function of the prior art is such that it would be considered by a person of ordinary skill in the art because of the similarity to the structure and function of the claimed invention. Bigio, 381 F.3d at 1325–27. A reference is reasonably pertinent if, even though it may be in a different field from that of the inventor’s endeavor, it is one which, because of the matter with which it deals, logically would have commended itself to an inventor’s attention in considering his problem. In re Clay, 966 F.2d at 659.” slip op. at 19

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

    “Petitioner proposes constructions for three claim terms, including the term “trick play functionality.” Pet. 22–23. Patent Owner argues for construction of the related claim term “the first and second indexes enabling trick play functionality.” See PO Resp. 41–49. We determine that it is not necessary to provide an express interpretation of any of those claim terms because construction of the proposed terms does not impact our determination that Petitioner has not shown that one of the prior art references is analogous to the claimed invention. 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

  • ExcludeMotion to exclude, deniedNot reached

    “Under the particular circumstances in this case, we need not assess the merits of Patent Owner’s Motion to Exclude. As discussed above, we have determined that Petitioner has not demonstrated by a preponderance that Kaku is analogous prior art to the ’792 patent and do not reach Petitioner’s arguments on the motivation to combine Kaku with Zetts or Seo. Accordingly, Patent Owner’s Motion to Exclude is dismissed as moot.” slip op. at 34

  • Strike new argumentNew argument disregardedGranted

    “As discussed above (supra § III.E.4.a), Petitioner’s papers fail to link Dr. Reader’s declaration testimony on the level of ordinary skill in the art to the analogous art inquiry and fail to identify a field of endeavor for the ’792 patent. We therefore agree with Patent Owner that Petitioner’s demonstrative slide 53 presents improper new arguments that have not been previously made. See Paper 38, 2 (“The parties may only rely upon evidence that has been previously submitted in the proceeding and may only present arguments that have been previously made in the submitted papers. No new evidence or arguments may be presented at the hearing.”), 5 (“Demonstratives are not a mechanism for making new arguments.”). We therefore sustain Patent Owner’s objections. We note, however, that demonstratives are not evidence. See id. at 5 (“Demonstrative exhibits used at the hearing are not evidence, nor will they be relied upon as evidence. Rather, demonstratives are visual aids to a party’s oral presentation regarding arguments and evidence previously presented and discussed in the papers”); CTPG 84 (“Demonstrative exhibits used at the final hearing are aids to oral argument and not evidence.”). In this Final Written Decision, we rely solely on the arguments properly presented in the parties’ briefs and the evidence of record, not on the demonstratives.” slip op. at 35

  Patent outcomesUS 8,472,792 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,472,792
• Apple Inc. / HTC Corporation et al. v. Invt Spe LLCNo claims unpatentable
  PTAB · Mar 25, 2020 · IPR2018-01473 · APJ Thu A Dang · IPR · Final written decision

  Claims 1–3, 5–9, and 11 were not shown unpatentable under § 103 over Keskitalo and Lindell because Petitioner did not adequately explain why a skilled artisan would combine their teachings.

  RulingsFinal written decision

  • Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) appliesDecided for petitioner

    “Petitioner contends that “[c]laim 1 includes limitations in means-plus[-]function format, which creates a rebuttable presumption that the [Applicant] intended to invoke 35 U.S.C. § 112, ¶ 6.”3 Pet. 7; see also Altiris Inc. v. Symantec Corp., 318 F.3d 1363, 1375 (Fed. Cir. 2003). In the Decision on Institution, we addressed Petitioner’s proposed constructions of the means-plus-function terms (Pet. 10–12), and we determined that Petitioner has set forth proposed structures that support these limitations. Dec. on Inst. 8–12; see 37 C.F.R. § 42.104(b)(3) (2018).” slip op. at 9

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

    “As for the other claim limitations of independent claims 1, 6, and 7, and claims 2, 3, 5, 8, 9 and 11 depending therefrom, neither party has proposed a construction of any other term. See Pet. 6–7; PO Resp. 12–13. We determine that we need not further construe expressly any other claim terms to resolve the arguments before us. See Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (explaining that only claim terms that are in controversy need to be construed and only to the extent necessary to resolve the controversy); see also Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (applying Vivid Techs. to an inter partes review).” slip op. at 13

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citation omitted). In that regard, Petitioner’s expert, Andrew C. Singer, Ph.D., testifies that a POSITA at the time of the invention would have been a person having a Bachelor’s degree in electrical engineering or the equivalent plus three years of experience working with digital communication systems or in network engineering or a Master’s degree in electrical engineering with an emphasis on communication systems or the equivalent plus one year of experience working with digital communication systems or in network engineering. Pet. 4–5; Ex. 1003 ¶ 35. Patent Owner does not dispute Dr. Singer’s assessment of the level of ordinary skill in the art. See generally PO Resp. We adopt and apply Dr. Singer’s assessment of the level of ordinary skill in the art, which is consistent with the level of ordinary skill reflected by the prior art of record. Okajima v. Bourdeau, 261 F.3d 1350, 1354–55 (Fed. Cir. 2001) (holding that absent evidence to the contrary, “the prior art itself [may] reflect[] an appropriate level” of ordinary skill in the art).” slip op. at 15

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

    “position of Patent Owner. In particular, we are unpersuaded by Petitioner’s contention that it would have been obvious to modify Keskitalo such that its predetermined thresholds for transmission power are average transmission power values in accordance with the teachings of Lindell. Pet. 26. That is, we are not persuaded that Petitioner has demonstrated by the preponderance of the evidence that it would have been obvious to have used Lindell’s average transmission power values as Keskitalo’s predetermined thresholds for transmission power. See Harmonic, 815 F.3d at 1363 (citing 35 U.S.C. § 312(a)(3) as requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”); Magnum Oil Tools, 829 F.3d at 1380 (holding that Petitioner cannot satisfy its burden of proving obviousness by employing “mere conclusory statements”).” slip op. at 24

  Patent outcomesUS 6,611,676 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 6,611,676
• Qualcomm Incorporated / Qualcomm Atheros, Inc. v. Parkervision, Inc.No claims unpatentable
  PTAB · Mar 7, 2017 · IPR2015-01832 · APJ Bart A Gerstenblith · IPR · Final written decision

  The Board found claims 1, 18, 81–84, 86, 88–91, 93, 94, 251–254, 256, 258–261, 263, and 264 not proven unpatentable under either asserted obviousness ground.

  RulingsFinal written decision

  • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed patent owner constructionDecided for patent owner

    “ordinary meaning of “bias signal” is “a signal having a steady predetermined level.” Resp. 28; Reply 6–7. The parties also agree that at least some information signals may be considered “bias signals.” The crux of the parties’ disagreement is which type of information signal. The ’940 patent defines “information signal” as “[t]he signal that contains the information that is to be transmitted. As used herein, it refers to the original baseband signal at the source.” Ex. 1001, 8:48–50 (emphasis added). Thus, the ’940 patent clearly defines “information signal” as “the original baseband signal at the source.” The ’940 patent defines “baseband signal” as: Any generic information signal desired for transmission and/or reception. As used herein, it refers to both the information signal that is generated at a source prior to any transmission (also referred to as the modulating baseband signal), and to the signal that is to be used by the recipient after transmission (also referred to as the demodulated baseband signal). Ex. 1001, 7:41–47. The ’940 patent clearly gives a broad meaning to “baseband signal” such that it encompasses any signal desired for transmission and/or reception, but the definition of “information signal,” as quoted above, does not refer to any baseband signal. Rather, it refers to “the original baseband signal at the source.” Ex. 1001, 8:48–54. By including the terms “original” and “at the source,” the meaning of information signal, as defined by the ’940 patent, is more limited than the definition of a baseband signal. Thus, Petitioner’s contention that the meaning of “information signal,” and, hence, “bias signal” should be expanded to include any “baseband signal” (Reply 4) improperly takes “information signal” out of context. Petitioner’s contention eliminates the terms “original” and “at the source” from the ’940 patent’s definition of “information signal,” without providing any reason why those terms should not be considered. Accordingly, we agree with Patent Owner and construe “bias signal” to mean “(1) a signal having a steady, predetermined level or (2) the original baseband signal at the source.”” slip op. at 11

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

    “Further, Patent Owner explains that “[t]he parties agree on the portion of the ‘to gate’ construction that is material to this IPR, i.e., that ‘to gate,’ the switch module must change between connecting and disconnecting the bias signal from the switch module’s output.” Id. at 37 (citing Pet. 13–14). Patent Owner’s proposed construction is consistent with the construction proposed by Petitioner. See Dec. 11 (discussing Petitioner’s construction of “to gate [a signal]” as “to change . . . between (i) connecting a signal at an input to an output such that the input and output have an equal voltage, and (ii) disconnecting the signal from the output” (quoting Pet. 14)). In light of the consistency between the proposed constructions, and in light of the lack of an actual controversy between the parties with respect to the impact of the minor differences in the proposed meanings of this term, we need not construe expressly the term further.4 Petitioner’s Reply does not challenge Patent Owner’s arguments regarding these claim terms. Accordingly, we adopt the construction of “switch module,” as reproduced above, for the reasons explained in our Decision to Institute. See Dec. 8–11. Additionally, we decline to construe expressly the terms “summer” and “to gate,” for the reasons discussed above.” slip op. at 13

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “3. Level of Ordinary Skill in the Art Petitioner contends that one of ordinary skill in the art as of October 1998 would possess, at a minimum, either (a) a master of science degree in electrical engineering and two or more years of experience in radio frequency circuit design, or (b) a bachelor of science degree in electrical engineering with three or more years of experience with the design and development of RF circuits. Pet. 11 (citing Ex. 1002 ¶¶ 24–29). Petitioner’s argument is supported by Dr. Larson’s testimony. Ex. 1002 ¶¶ 24–29. Patent Owner does not contest Petitioner’s designation of the level of ordinary skill in the art as of the date of the invention. Accordingly, for the purposes of this Decision, we adopt Petitioner’s proposed level of ordinary skill in the art.” slip op. at 18

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

    “High Level Radio Frequency (“RF”) Source 10. The RF signal contains the information that television watchers see and hear.” Pet. 29 (citing Ex. 1023, 1:14–17). Petitioner asserts that Dobrovolny’s “RF Source signals are information signals that constitute ‘bias signals’ as that term is defined by the ‘940 patent.” Id. (citing Ex. 1002 ¶¶ 154, 210). Petitioner’s position is based on its claim construction of “bias signals” as “encompassing information signals.” Id. Notably, in the Petition,5 Petitioner does not assert that the recited “bias signal[s]” would have been obvious to one of ordinary skill in the art in light of Dobrovolny’s RF Source signals; rather, Petitioner’s position is that “bias signal[s]” are disclosed expressly. See id. (“RF Source signals . . . constitute ‘bias signals’”) (emphasis added).6 Patent Owner’s primary argument is as follows: [E]ven accepting [Petitioner’s] assertion that the ’940 patent expanded the ordinary meaning of ‘bias signal’ to include ‘information signal’ as defined in the patent . . . . [Petitioner] does not even allege, much less prove, that the purported ‘bias signal’—Dobrovolny’s high frequency Radio Frequency (RF) television signal—meets either of these definitions. Resp. 38–39. Patent Owner reiterates that Petitioner’s “only attempt to prove that the Dobrovolny RF television signal satisfies the claimed first and second bias signals is its assertion that Dobrovolny’s ‘RF signal contains the information that television watchers see and hear.’” Id. at 39 (quoting 5 As discussed infra, see Section III.C., Petitioner’s additional argument that bias signals would have been obvious in light of Dobrovolny’s RF Source signals constitutes a new argument, set forth only in Petitioner’s Reply, and we do not consider it here for the reasons explained below. 6 With respect to independent claim 18, Petitioner relies upon its arguments directed to the similar claim limitations of claim 1. See Pet. 44–45 (referring to Petitioner’s arguments directed to claim 1). Pet. 29). Patent Owner contends, however, that “an ‘information signal’ is not just any signal containing information . . . as [Petitioner’s] argument implicitly presumes. Rather, as defined in the ’940 patent, an information signal is restricted to ‘the original baseband signal at the source.’” Id. (quoting Ex. 1001, 8:48–54). Petitioner’s argument in its Reply is based on its incorrect claim construction of “bias signal” as encompassing any information signal. See, e.g., Reply 7 (asserting that the “bias signal” is met by Dobrovolny’s disclosure because it teaches “an information carrying High Level RF Source for reception”) (citing Ex. 1023, 1:14–17; Ex. 1002 ¶¶ 154, 210). As explained above, “bias signal” is understood to mean “(1) a signal having a steady, predetermined level or (2) the original baseband signal at the source.” See supra Section II.A. Petitioner does not argue, and has not established, that Dobrovolny’s RF Source signal is either at a steady, predetermined level or is the original baseband signal at the source. Thus, Petitioner has not shown that Dobrovolny discloses the “bias signal” limitations recited in claims 1 and 18, and the claims that depend from each.7 Accordingly, Petitioner has not shown, by a preponderance of the” slip op. at 19

  Patent outcomesUS 6,091,940 not shown unpatentable
  Claim construction§ 103 obviousness
  Patents in suitUS 6,091,940

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