- Cambridge Industries USA, Inc. / Accelight Technologies, Inc. v. Applied Optoelectronics, Inc.No claims unpatentablePTAB · 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 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,788,690 - Cambridge Industries USA, Inc. / Accelight Technologies, Inc. v. Applied Optoelectronics, Inc.No claims unpatentablePTAB · 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 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,788,690 - Thermaltake Technology Co., Ltd. / Thermaltake Inc. v. Chien-Hao ChenAll claims unpatentablePTAB · Feb 17, 2026 · IPR2024-01230 · APJ Andreas Baltatzis · IPR · Final written decision
Claims 1–5 are unpatentable; substitute claims 6 and 7 are unpatentable, and the Revised Motion to Amend is denied.
RulingsFinal written decision- Skill levelSkill level board ownDecided for petitioner
“our Institution Decision comports with the qualifications a person would have needed to understand and implement the teachings of the ’336 patent and the prior art of record. Inst. Dec. 15. Accordingly, we adopt the level of skill discussed in our Institution Decision. C.” slip op. at 11
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“Pharms. Inc. v. Amino Chemicals Ltd., 715 F.3d 1363, 1374 (Fed. Cir. 2013)). Accordingly, Patent Owner applies a different definition of “side,” in claim 1’s recitation of “an illumination area on at least two sides of the fan at top of the body,” to that definition used to understand “side[s] of the body,” discussed above. Specifically, Patent Owner argues that Petitioner’s dictionary definition of “side,” including “an area next to something” applies to “an illumination area on at least two sides of the fan at the top of the body.” See id. at 8–9.” slip op. at 17
- Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableMotivation foundUnpatentable
“Hasegawa, and Huang teaches or suggests the limitations of claim 3, and that one skilled in the art would have been motivated to combine those teachings with a reasonable expectation of success. See Ex. 1004 ¶¶ 136– 140; Ex. 1008, 8:4–15, 3:20–29. Accordingly, we determine that claim 3 would have been obvious over Lai and Huang, or Lai, Hasegawa, and Huang. F.” slip op. at 50
- 112 supportMotion to amend, deniedDenied
“c) Conclusion We conclude that Patent Owner's Revised Motion to Amend adds new” slip op. at 90
Patent outcomesUS 10,690,336 unpatentableClaim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · GrahamPatents in suitUS 10,690,336 - Western Digital Technologies, Inc. v. Godo Kaisha IP Bridge 1Institution deniedPTAB · Oct 8, 2025 · IPR2025-00701 · APJ Sheila F Mcshane · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–14 were obvious over the asserted combinations.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsDenied
“Institution of an inter partes review is authorized by statute when “the information presented in the petition . . . and any response . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). Upon consideration of the Petition, the Preliminary Response, and the evidence of record, we determine that Petitioner has not established a reasonable likelihood of prevailing with respect to the unpatentability of at least one claim of the ’138 patent. Accordingly, for the reasons that follow, we decline to institute an inter partes review of claims 1–14 of the ’138 patent.” slip op. at 2
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner states that “the claim terms should be given their plain and ordinary meaning and no claim construction is necessary to find the claims unpatentable.” Pet. 6. Patent Owner does not address claim construction. See generally Prelim. Resp. We determine that we need not expressly construe any claim terms to resolve the parties’ disputes on the current record. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“[W]e 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 8
- Skill levelSkill level petitioner adoptedOther
“a Ph.D. or master’s degree in electrical engineering, physics, materials science, or a related field, and at least one year or four years, respectively, of experience in the research, design, and/or development of magnetic/spintronic devices, or the equivalent. Pet. 8 (citing Ex. 1024 ¶¶ 25–29). Petitioner contends that less work experience can be compensated for by a higher level of experience and vice versa. Id. (citing Ex. 1024 ¶ 25). Petitioner also asserts that the proposed level of skill would be the same under any of the United States, Japanese, or PCT application dates. Id. at 8–9 (citing Ex. 1024 ¶¶ 24–25). Patent Owner does not challenge Petitioner’s proposed level of qualifications for one of ordinary skill in the art. Prelim. Resp. 20. At this stage of the proceeding, we adopt Petitioner’s assessment of the level of skill in the art, which is consistent with the ’138 patent and the asserted prior art of record.” slip op. at 7
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“As discussed above, Petitioner relies upon Parkin, and its layers 115 and 175, as the claimed first and second ferromagnetic material layers, respectively. See Pet. 10, 16. Petitioner admits that these layers are 8 In the Petition, Petitioner refers to the lower electrode “ferromagnetic layer 110’ as discussed in Claim 1[a]” in the discussion of limitation 1[d]. Pet. 18. Petitioner’s reference to “layer 110’” appears to be in error because the Petition’s discussion for limitation 1[a] refers to layer 115 of Parkin, as does Dr. Bokor’s testimony related to limitations 1[a] and 1[d]. Pet. 10; Ex. 1024 ¶¶ 109, 136. amorphous, but contends that, as Parkin discloses, these layers may be annealed. Id. at 17. Petitioner, however, refers to Parkin’s disclosure that only “a portion of the storage layer 175” is crystallized after annealing. Id. at 17–18 (citing Ex. 1062, 18:51–55) (emphasis added). Petitioner also relies upon Parkin’s “thin crystalline ferromagnetic layer” that is crystallized to teach limitation 1[d]. Id. at 18 (citing Ex. 1062, 18:55–59; Ex. 1024 ¶¶ 131–132) (emphasis added). Dr. Bokor additionally testifies that it is “Parkin’s ‘thin crystalline ferromagnetic layer’ of CoFeB” that meets the “entirely crystallized” requirement of limitation 1[d]. Ex. 1024 ¶ 132. Parkin, however, states that a thin crystalline ferromagnetic layer is formed, but “the bulk of storage layer 175 remains amorphous.” Ex. 1062, 18:55–60 (emphasis added). Petitioner fails to reconcile how its assertions that the first and second ferromagnetic layers, which are mapped to the totality of layers of 115 and 175, meet the limitation that the first and second ferromagnetic layers are each “entirely crystallized” when Petitioner relies only a thin layer, that is, a portion, of the 115 and 175 layers for the teaching that the respective layers are entirely crystallized. Put another way, Petitioner’s mapping is inconsistent: Petitioner relies upon the full depth of certain “layers” of Parkin for the teaching of the ferromagnetic layers, but then only relies upon thin portion of that depth for the assertion that the “layers” are entirely crystallized.” slip op. at 16
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,367,138 - Cradlepoint, Inc. / Honeywell International, Inc. et al. v. Sisvel S.P.A.No claims unpatentablePTAB · 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 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 7,869,396 - Skullcandy, Inc. v. Earin ABInstitution deniedPTAB · Sep 15, 2025 · IPR2025-00690 · APJ Monica S Ullagaddi · IPR · Director review
The Board denied institution because the petition did not show a reasonable likelihood that claims 20 and 21 were unpatentable on any asserted obviousness ground.
RulingsDirector review decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“review. See 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a) (2023). The standard for instituting an inter partes review is set forth in 35 U.S.C. § 314(a), which provides that an inter partes review may not be instituted “unless the Director determines . . . there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Having considered the parties’ arguments and the evidence of record, we determine that, for the reasons discussed herein, Petitioner does not demonstrate a reasonable likelihood that it would prevail with respect to at least one of the challenged claims. We thus decline to institute an inter partes review on all challenged claims on all asserted grounds. See SAS Inst., Inc. v. Iancu, 138 S. Ct. 1348, 1354, 1359–60 (2018).” slip op. at 2
- 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) (citing Custom Accessories, Inc. v. Jeffrey–Allan Indus., Inc., 807 F.2d 955, 962 (Fed.Cir.1986)).” slip op. at 7
- BurdenNot shown unpatentable
“Analysis of the Parties’ Contentions We agree with Patent Owner that the Petition is conclusory––the Cooperstock Declaration merely reiterates the position set forth in the Petition and does not provide sufficient detail or explanation of why Olodort’s “low power state” would have been understood by a POSITA to mean that “existing connections to a second wireless earbud and to a wireless audio streaming host device will be disconnected,” as recited in claim 20. 37 C.F.R. § 42.65(a) (“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight.”); see Pet. 23–24; Ex. 1007 ¶¶ 84–87. We further agree that claim 38 is not directed to entering “a standby mode” as it recites “the low power state is a standby mode from which the second earpiece is awakened in response to detecting that the second earpiece has been attached to an ear.” Ex. 1002, claim 38 (emphasis added). As such, we agree with Patent Owner that Olodort’s “claim 38 contains no disclosure concerning what happens to ‘existing connections’ when exiting, let alone entering, the ‘standby mode.’” See Prelim. Resp. 9 (citing Ex. 1002, claims 32, 34, 38). We further agree with Patent Owner that the Cooperstock Declaration in paragraphs 86 and 87 sets forth an alternative obviousness theory “based on a modification to Olodort to add ‘circuitry for disconnecting the earbuds from one another and from any wireless audio streaming host device when in the low power state’” that is improperly incorporated by reference into the Petition. Prelim. Resp. 10–11 (emphasis added) (citing 35 U.S.C. § 312(a)(3) (A petition for inter partes review “may be considered only if . . . the petition identifies, in writing and with particularity . . . the evidence that supports the grounds for challenged to each claim.”); 37 C.F.R. § 42.104(b)(4) (“The petition must specify where each element of the claim is found in the prior art patents or printed publications relied upon.”); 37 C.F.R. § 42.6(a)(3) (“Arguments must not be incorporated by reference from one document into another.”)). As such, we need not and do not consider this alternative obviousness theory.” slip op. at 18
- Expert testimonyDecided for patent owner
“Analysis of the Parties’ Contentions We agree with Patent Owner that the Petition is conclusory––the Cooperstock Declaration merely reiterates the position set forth in the Petition and does not provide sufficient detail or explanation of why Olodort’s “low power state” would have been understood by a POSITA to mean that “existing connections to a second wireless earbud and to a wireless audio streaming host device will be disconnected,” as recited in claim 20. 37 C.F.R. § 42.65(a) (“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight.”); see Pet. 23–24; Ex. 1007 ¶¶ 84–87. We further agree that claim 38 is not directed to entering “a standby mode” as it recites “the low power state is a standby mode from which the second earpiece is awakened in response to detecting that the second earpiece has been attached to an ear.” Ex. 1002, claim 38 (emphasis added). As such, we agree with Patent Owner that Olodort’s “claim 38 contains no disclosure concerning what happens to ‘existing connections’ when exiting, let alone entering, the ‘standby mode.’” See Prelim. Resp. 9 (citing Ex. 1002, claims 32, 34, 38). We further agree with Patent Owner that the Cooperstock Declaration in paragraphs 86 and 87 sets forth an alternative obviousness theory “based on a modification to Olodort to add ‘circuitry for disconnecting the earbuds from one another and from any wireless audio streaming host device when in the low power state’” that is improperly incorporated by reference into the Petition. Prelim. Resp. 10–11 (emphasis added) (citing 35 U.S.C. § 312(a)(3) (A petition for inter partes review “may be considered only if . . . the petition identifies, in writing and with particularity . . . the evidence that supports the grounds for challenged to each claim.”); 37 C.F.R. § 42.104(b)(4) (“The petition must specify where each element of the claim is found in the prior art patents or printed publications relied upon.”); 37 C.F.R. § 42.6(a)(3) (“Arguments must not be incorporated by reference from one document into another.”)). As such, we need not and do not consider this alternative obviousness theory.” slip op. at 18
§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,402,120 - PTAB · Aug 27, 2025 · IPR2025-00574 · APJ Beth Z Shaw · IPR · Institution
The Board instituted IPR of claims 1–7 on all asserted grounds after finding a reasonable likelihood that Petitioner would prevail on claim 1 over Choe and Workman.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“For purposes of institution, we find sufficient Dr. Darrell’s testimony that a person of ordinary skill in the art would have been motivated to combine Choe and Workman because Workman discloses predictive models to identify the horizon line (Ex. 1003 ¶ 146), and additionally, because using Workman’s model to identify the horizon line would have been combining known elements (CNNs and annotation for camera calibration) according to known methods to yield predictable results and used known techniques (CNNs) to improve similar devices in the same way. Pet. 48 (citing Ex. 1003 ¶ 150). We find sufficient for institution Dr. Darrell’s testimony that because these models were well known, a person of skill in the art would have had a reasonable expectation of success in combining the teachings of Choe and Workman to achieve the method of claim 1. Id. at 49 (citing Ex. 1003 ¶ 150). We have reviewed Mr. Andrews’s testimony to the contrary (Ex. 2003 ¶¶ 71–80) but, at this stage, do not find it persuasive. For example, to the extent Patent Owner and Mr. Andrews assert that Choe does not identify any “shortcomings” that would motivate a POSITA to look for a better approach like that of Workman (see Prelim. Resp. 29; Ex. 2003 ¶ 74), we note that it is “not necessary to show that a combination is ‘the best option, only that it be a suitable option,’” and “if a technique has been used to improve one device, and a person of ordinary skill in the art would recognize that it would improve similar devices in the same way, using the technique is obvious unless its actual application is beyond his or her skill,” Intel Corp. v. Qualcomm Inc., 21 F.4th 784, 800 (Fed. Cir. 2021) (citations omitted). Thus, at this stage and on this record, we preliminarily agree that the combination of Choe and Workman teaches the subject matter of limitation [1B] sufficiently to meet Petitioner’s burden on institution.” slip op. at 11
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“For purposes of institution, we find sufficient Dr. Darrell’s testimony that a person of ordinary skill in the art would have been motivated to combine Choe and Workman because Workman discloses predictive models to identify the horizon line (Ex. 1003 ¶ 146), and additionally, because using Workman’s model to identify the horizon line would have been combining known elements (CNNs and annotation for camera calibration) according to known methods to yield predictable results and used known techniques (CNNs) to improve similar devices in the same way. Pet. 48 (citing Ex. 1003 ¶ 150). We find sufficient for institution Dr. Darrell’s testimony that because these models were well known, a person of skill in the art would have had a reasonable expectation of success in combining the teachings of Choe and Workman to achieve the method of claim 1. Id. at 49 (citing Ex. 1003 ¶ 150). We have reviewed Mr. Andrews’s testimony to the contrary (Ex. 2003 ¶¶ 71–80) but, at this stage, do not find it persuasive. For example, to the extent Patent Owner and Mr. Andrews assert that Choe does not identify any “shortcomings” that would motivate a POSITA to look for a better approach like that of Workman (see Prelim. Resp. 29; Ex. 2003 ¶ 74), we note that it is “not necessary to show that a combination is ‘the best option, only that it be a suitable option,’” and “if a technique has been used to improve one device, and a person of ordinary skill in the art would recognize that it would improve similar devices in the same way, using the technique is obvious unless its actual application is beyond his or her skill,” Intel Corp. v. Qualcomm Inc., 21 F.4th 784, 800 (Fed. Cir. 2021) (citations omitted). Thus, at this stage and on this record, we preliminarily agree that the combination of Choe and Workman teaches the subject matter of limitation [1B] sufficiently to meet Petitioner’s burden on institution.” slip op. at 11
- Skill levelOther
“would have had a Bachelor’s in Computer Science with a focus on computer/machine vision, and at least two years of experience with each of: (1) machine learning (including neural network) methods as applied to machine/computer vision and (2) classical machine/computer vision algorithms (e.g., edge detection, line identification, computation of camera parameters from horizon line, etc.)” and that additional education “could serve as a substitute for the experience requirement.” Pet. 7–8 (citing Ex. 1003 ¶ 77). Patent Owner disagrees with Petitioner’s definition and asserts that a POSITA “would have a bachelor’s degree in engineering or computer science with one- or two-years training and/or experience in design of software for camera/sensor systems in the automotive industry.” Prelim. Resp. 12 (citing Ex. 2003 (Declaration of Scott Andrews) ¶ 35). We determine that no express finding is necessary, on the present record, and that the level of ordinary skill in the art is reflected by the prior art of record. 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). The difference in how each party characterizes a POSITA’s work experience does not change our analysis or conclusions based on the present record. Should the parties continue to disagree regarding the level of ordinary skill in the art during trial, we encourage the parties to explain how an automotive-focused definition, or the lack thereof, would affect any obviousness analysis in our final written decision. B. slip op. at 5
- Expert testimonyOther
“For purposes of institution, we find sufficient Dr. Darrell’s testimony that a person of ordinary skill in the art would have been motivated to combine Choe and Workman because Workman discloses predictive models to identify the horizon line (Ex. 1003 ¶ 146), and additionally, because using Workman’s model to identify the horizon line would have been combining known elements (CNNs and annotation for camera calibration) according to known methods to yield predictable results and used known techniques (CNNs) to improve similar devices in the same way. Pet. 48 (citing Ex. 1003 ¶ 150). We find sufficient for institution Dr. Darrell’s testimony that because these models were well known, a person of skill in the art would have had a reasonable expectation of success in combining the teachings of Choe and Workman to achieve the method of claim 1. Id. at 49 (citing Ex. 1003 ¶ 150). We have reviewed Mr. Andrews’s testimony to the contrary (Ex. 2003 ¶¶ 71–80) but, at this stage, do not find it persuasive. For example, to the extent Patent Owner and Mr. Andrews assert that Choe does not identify any “shortcomings” that would motivate a POSITA to look for a better approach like that of Workman (see Prelim. Resp. 29; Ex. 2003 ¶ 74), we note that it is “not necessary to show that a combination is ‘the best option, only that it be a suitable option,’” and “if a technique has been used to improve one device, and a person of ordinary skill in the art would recognize that it would improve similar devices in the same way, using the technique is obvious unless its actual application is beyond his or her skill,” Intel Corp. v. Qualcomm Inc., 21 F.4th 784, 800 (Fed. Cir. 2021) (citations omitted).” slip op. at 11
§ 103 obviousnessPatents in suitUS 11,875,580 - PTAB · Jun 13, 2025 · IPR2025-00351 · APJ Beth Z Shaw · IPR · Institution
The Board instituted IPR of claims 1–26 on all grounds, finding a reasonable likelihood that Petitioner would prevail on at least one claim.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“A district court stay of the litigation pending resolution of the PTAB trial allays concerns about inefficiency and duplication of efforts.” Fintiv Order 6. That is the case here. Thus, the first Fintiv factor strongly weighs against exercising the authority to deny institution. Id. Under the second Fintiv factor, the proximity of the court’s trial date to the Board’s projected statutory deadline for a final written decision weighs against exercising our authority to deny institution because there is no trial date scheduled. Id. at 9; see Ex. 1031, 3. slip op. at 8
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“To institute an inter partes review, we must determine “that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). The Board, however, has discretion to deny a petition even when a petitioner meets that threshold. Id.; see, e.g., Cuozzo Speed Techs., LLC v. Lee, 136 S. Ct. 2131, 2140 (2016) (“[T]he agency’s decision to deny a petition is a matter committed to the Patent Office’s discretion.”). For the reasons that follow, we grant institution of inter partes review.” slip op. at 2
- Skill levelOther
“have a bachelor’s or equivalent degree in computer science or a related field and at least 2 years of experience in multimedia processing or delivery using internet protocols.” Pet. 10 (citing Ex. 1002 ¶¶ 67–68). Petitioner further states that “a person with less formal education but more experience, or more formal education but less experience, could have also met the relevant standard for a POSITA.” Id. Patent Owner submits a similar definition (see Prelim. Resp. 13–14), but states that a POSITA “would understand that . . . the subject of the patent is a software-based solution to broadcasting multimedia streams, and the skillset and expertise in hardware-based systems would not make one knowledgeable about software-based systems.” Prelim. Resp. 13–14. We determine that no express finding is necessary, on the present record, and that the level of ordinary skill in the art is reflected by the prior art of record. 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). The difference in how each party characterizes a POSITA’s work experience does not change our analysis or conclusions based on the present record. Should Patent Owner dispute Petitioner’s definition during trial, we encourage Patent Owner to explain how a software-focused definition would affect any obviousness analysis in our final written decision.” slip op. at 10
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Instituted
“Claim 1 does not limit the “caching unit” in any way. With this in mind, we preliminarily agree that Farber discloses the subject matter of limitation 1a sufficiently to meet Petitioner’s burden on institution. b.” slip op. at 14
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialPatents in suitUS 11,140,441 - PTAB · Jun 13, 2025 · IPR2025-00350 · APJ Jason M Repko · IPR · Institution
The Board instituted IPR on claims 1–13 for all petition grounds, finding a reasonable likelihood of prevailing on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“After Patent Owner made these arguments, though, the district court in the Florida Litigation (1) stayed all deadlines indefinitely and (2) said that the October trial will not go forward as scheduled. Ex. 1028, 3. “A district court stay of the litigation pending resolution of the PTAB trial allays concerns about inefficiency and duplication of efforts.” Fintiv Order 6. That is the case here. Thus, the first Fintiv factor strongly weighs against exercising the authority to deny institution. Id.” slip op. at 6
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Conclusion At this stage and on this record, it is reasonably likely that Petitioner would prevail in showing that claim 1 is unpatentable as obvious over Avellan. The Petition’s merits are compelling because Petitioner’s challenge plainly leads to a conclusion that claim 1 is unpatentable.” slip op. at 14
- Skill levelOther
“B. Merits 1. Level of Ordinary Skill in the Art According to the Petition, Here, a Person of Ordinary Skill in the Art (“POSITA”) at the time of the claimed invention would have a bachelor’s or equivalent degree in computer science or a related field and at least 2 years of experience in multimedia processing or delivery using internet protocols. . . . A person with less formal education but more experience, or more formal education but less experience, could also meet the standard. Pet. 19 (citing Ex. 1007 ¶¶ 68–69). Patent Owner provides a different definition: A person of ordinary skill in the art at the time of the inventions in the ‘002 Patent would have had a bachelor’s degree in computer science or a related field, and at least two years of experience working in the field of software systems used in generating and broadcasting multimedia streams. An individual with less technical education but more experience, or vice versa, could also qualify as a person of ordinary skill in the art. Prelim. Resp. 12 (citing Ex. 2006 ¶ 59) (emphasis added). Patent Owner argues that the definition must include experience in software systems because the invention is a software-based solution. Id. at 12–13 (citing Ex. 2006 ¶ 60). At this stage, our decision would be the same under either definition. Should Patent Owner dispute Petitioner’s definition during trial, we encourage Patent Owner to explain how a software-focused definition would affect any obviousness analysis in our final written decision.” slip op. at 9
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Instituted
“There is no dispute that (1) Avellan’s user initiates the request and eventually receives the stream and (2) gateway server 134 receives a request for a media stream for playback on a broadcast channel. See id. at 32–39; Pet. 22. The issue here is whether claim 1 requires that the recited “content provider” originates the request. We agree with Petitioner that claim 1 does not require this. Prelim. Reply 7. Apart from being received from the content provider, claim 1 does not limit the request’s origin in any way. Rather, claim 1 only requires that the request is received from the content provider. Ex. 1001, 14:51–54. Claim 1 recites “comprising” in the preamble of the method (id. at 14:50), which is a encompasses user-originated requests that are received from other entities. With this understanding of the claim, we preliminarily agree with Petitioner that Avellan discloses limitation 1a through its communication path from network 150 to user computers 1041–104n via gateway platforms 1301–130n. Pet. 22. That is, Avellan’s gateway platform 134 receives a request for at least one media stream, and claim 1 does not exclude user-originated requests. See id. We agree that the content can be video from CNN, BBC, ESPN, or other live-streaming television feeds. Id. at 24 (citing Ex. 1003, 8:18–21). Thus, at this stage and on this record, we agree with Petitioner that Avellan discloses limitation 1a. See id. at 22. ii. Remaining Limitations Apart from the arguments discussed above, Patent Owner does not present arguments specifically directed to the other limitations of claim 1. See Prelim. Resp. We determine that Petitioner’s arguments made in connection with those limitations are sufficient at this stage and on this record. Pet. 24–32. We agree with Petitioner that Avellan teaches obtaining content from the networks 150 and 152, as recited in 1b; rendering a webpage by a browser at gateway 134, as recited in 1c; generating the screen captures at gateway 134, as recited in 1d; and assembling and providing the media stream when gateway server 134 compresses the image or video format and sends it to the browser 106, as recited in 1e and 1f. Id. at 24–29. Petitioner has provided a sufficient rationale at this stage why a method with the subject matter recited in lg and 1h would have been obvious. Id. at 29– 32. Conclusion At this stage and on this record, it is reasonably likely that Petitioner would prevail in showing that claim 1 is unpatentable as obvious over Avellan. The Petition’s merits are compelling because Petitioner’s challenge plainly leads to a conclusion that claim 1 is unpatentable.” slip op. at 12
§ 102 anticipation§ 103 obviousnessDiscretionary denialPatents in suitUS 10,524,002 - Samsung Electronics Co., Ltd. v. Sionyx, LLCInstitution deniedPTAB · Jun 6, 2025 · IPR2025-00065 · APJ Brian D Range · IPR · Institution
The Board denied institution of IPR challenging claims 1–44 under § 314(a), finding the Fintiv factors favoring denial outweighed the Petition’s strong merits.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivInstitution denied
“stipulation would only eliminate the District Court’s consideration of Haddad204. Despite the stipulation, the District Court would still have to consider invalidity of every claim the Petition addresses and would still have to consider the Alie, Baggenstoss, and Park references. Cf. Stellar at 4 (“Petitioner’s invalidity arguments in the district court are more expansive and include combinations of the prior art asserted in these proceedings with unpublished system prior art, which Petitioner’s stipulation is not likely to moot.”). In other words, “Petitioner’s stipulation does not ensure that [this proceeding] would be a ‘true alternative’ to the district court proceeding.” Id. at 3–4. Because of the remaining overlap between the Petition and the District Court proceeding, Fintiv factor four weighs strongly in favor of discretionary denial.” slip op. at 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundOther
“for back side illumination (BSI), which appears to teach or suggest a textured region with surface features “located on the light incident side of the semiconductor layer and configured to interact with incident [EMR].” Pet. 22–27 (citing Ex. 1006, Fig. 5, ¶¶ 53, 68, 96; Ex. 1004 ¶¶ 39–40, 88–95, 101–107). As Petitioner and its expert explain, a person of ordinary skill in the art would have been motivated to modify Figure 5 of Alie into a BSI device because BSI devices allow more incident light to reach the semiconductor layer, resulting in more light being absorbed, an increase in the quantum efficiency, and an improvement in the signal to noise ratio. Pet. 25–26 (citing Ex. 1006 ¶¶ 68, 70; Ex. 1004 ¶¶ 39–40, 92, 95). Patent Owner argues that Alie does teach, suggest, or disclose “a textured region comprising a plurality of shallow trench isolation features.” Prelim. Resp. 9–11. But it appears Petitioner has at least shown Alie teaches or suggests this element. See discussion supra. Patent Owner further argues that Petitioner fails to present any proof that a person of ordinary skill in the art would have been motivated to modify Figure 5 of Alie into a BSI device. Id. at 11–15. But, in our view, Petitioner has provided an adequate motivation to modify Alie—so that more light will be absorbed, yielding an increase in the quantum efficiency and an improvement in the signal to noise” slip op. at 18
- Parallel petitionsNot reached
“17 Petitioner filed petitions for IPR2025-00064 and IPR2025-00065 at the same time. Both petitions address the ’682 patent but apply different art. Patent Owner also argues the second petition (IPR2025-00065) should be denied because one petition is sufficient. Patent Owner’s Response to Petitioner’s Notice Ranking Parallel Petitions, Paper 11. Because we deny institution based on Fintiv discretion, it is not necessary to reach Patent Owner’s multiple petition argument.” slip op. at 20
§ 103 obviousnessDiscretionary denialcites KSRPatents in suitUS 10,347,682
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.