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  • Google LLC v. Eyesmatch Ltd.Some claims unpatentable
    PTAB · Nov 21, 2025 · IPR2025-00296 · APJ Neil T Powell · IPR · Final written decision

    Claims 1–18 are unpatentable: claims 1–6 and 10–12 over Rosenberg and Park, and claims 3, 4, 7–9, and 11–18 over Rosenberg, Park, and Geisner.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “December 18, 2012, would have a bachelor’s degree in electrical or computer engineering, or a closely related field such as computer science, and two years of work experience with image capture and processing systems or related fields.” Pet. 7 (citing Karam Decl. ¶ 91). Petitioner adds that “[a] person with less and/or different education, but more relevant practical experience, or vice versa, may also meet this standard.” Id. According to Petitioner, [t]he prior art also evidences such level of skill.” Id. Patent Owner states that it “applies Petitioners’ proposed level of skill for purposes of this Response.” PO Resp. 9 (citing Forsyth Decl. ¶¶ 53–54). For this Decision, we adopt the formulation of the level of ordinary skill in the art proposed by Petitioner and applied by Patent Owner as consistent with the prior art before us in this proceeding.10” slip op. at 9

    • Prior constructionPrior construction adoptedDecided for patent owner

      “Turning to the substantive issues, we find the District Court’s “mirror tracking mode” construction to be well-reasoned and supported by the record, and we therefore adopt that construction and its reasoning. As the District Court points out, both the “double the distance” and “same size” aspects of its construction are expressly discussed in the ’109 patent, which is incorporated in the ’110 patent. See Ex. 2008, 16 (citing Ex. 1021, 2:5–27, Figs. 5A, 5B), 40 (citing “same reasons set forth regarding the term ‘it appears to mimic a reflection of a mirror’” in support of construction of “mirror tracking mode”). So, too, is “flipping” or reversing of the image disclosed. Id. at 17 (citing Ex. 1021, 14:46–51, 15:41–47), 40.” slip op. at 14

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

      “Post-institution, Patent Owner invites us to construe limitation 1[f]’s recitation of “mirror tracking mode” and limitation 1[c]’s recitation of “adaptive transformation mapping.” PO Resp. 9–14. Regarding the latter, Patent Owner explains that “[i]n the District Court Litigation, ‘adaptive transformation mapping’ was construed as ‘continuously variable transformation mapping’ and ‘transformation mapping’ was construed as a ‘selected set of image transformations.’” Id. at 14 (citing Ex. 2008, 14, 37; Ex. 2013 ¶¶ 25, 27). Patent Owner does not, however, identify any way that those claim constructions affect our analysis of the parties’ patentability disputes. We find it unnecessary in resolving the parties’ patentability disputes to construe expressly limitation 1[c]’s recitation of “adaptive transformation mapping.”” slip op. at 11

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

      “persuasively address limitation 1[f]’s “mirror tracking mode.” In particular, Petitioner does not address persuasively the requirement, as explained in Section II.B above, that mirror tracking mode involves processing camera-captured images in a way that “maintains roughly the same size regardless of the user movement.” At odds with this requirement, Petitioner founds its case on an assertion that “Haan teaches the claimed mirror tracking mode” because “if the viewer is within 35 cm of the camera, a tracking mode is entered, applying resizing transformation.” Pet. 44 (emphasis added) (citing Ex. 1005 ¶¶ 75–76, 80–82, 90–94, 97; Ex. 1003 ¶¶ 205–210). The resizing transformation Petitioner references actually involves magnifying the user’s image by an amount that changes based on the user’s position relative to the camera, quite the opposite of maintaining image size regardless of the user movement. Ex. 1005 ¶¶ 75–76, Fig. 8. Thus, Petitioner’s initial position is unpersuasive. Petitioner’s shift to Haan’s “reflective mirror mode and conventional mirror period in the dual mode” is also unavailing. Reply 8. Consistent with Patent Owner’s arguments, Petitioner does not provide persuasive evidence that these operating states of Haan’s device involve any processing of camera-captured images. Sur-reply 13–14. To the contrary, Haan suggests that anytime its device provides an unmagnified image, it comes from a reflection off a physical reflective surface. See, e.g., Ex.1005 ¶ 76 (“This can be done for instance by using the device as a simple mirror, i.e. not displaying an image on the display device, but using the device in the reflective mode.”) (emphasis added), ¶ 92 (“a simple reflective mode, to act as a mirror”), ¶ 29 (“for a first range of positions, no image is displayed, whereby the reflective layer acts as a mirror, and for a second range of positions, the recorded image is displayed.”) (emphasis added). We also find unpersuasive Petitioner’s Reply arguments based on Haan’s disclosure of smoothly transitioning from “using the device as a simple mirror” (i.e., using a physical reflecting surface) to displaying a magnified image. Reply 11 (citing Ex. 1005 ¶¶ 76, 80). To the extent this may establish a point around the transition at which Haan’s system displays an image with relatively little magnification, it does not establish that Haan teaches, suggests, or renders obvious holding the displayed size roughly constant, “regardless of the user movement.” Indeed, given Haan’s focus on helping the user see things more clearly with image magnification, Petitioner’s argument that it would have been obvious to hold the size of the image constant is not persuasive. See, e.g., Ex. 1005 ¶ 4.” slip op. at 23

    Patent outcomesUS 8,982,110 mixed
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 8,982,110
  • PTAB · Nov 4, 2025 · IPR2025-00297 · APJ Thomas L Giannetti · IPR · Final written decision

    Claims 1–18 were not shown unpatentable because the prior art did not establish the claimed distance-based variation in the rate of image-processing steps.

    RulingsFinal written decision
    • Prior constructionPrior construction adoptedDecided for patent owner

      “Putting aside the controversy over alleged impropriety and sandbagging in connection with the District Court’s Order, which we address infra in connection with Patent Owner’s Motion to Strike, we find the District Court’s “mirror-mimicking” construction to be well-reasoned and supported by the record, and we therefore adopt that construction and its reasoning. As the District Court points out, both the “double the distance” and “same size” aspects of its construction are expressly discussed in the ’109 patent. See Ex. 2008, 16 (citing Ex. 1001, 2:5–27, Figs. 5A, 5B). So, too, is “flipping” or reversing of the image disclosed. Id. at 17 (citing Ex. 1001, 14:46–51, 15:41–47). Petitioner does not dispute that the ’109 patent discloses these aspects of “mirror-mimicking,” or even that the District Court’s claim construction is incorrect. Instead, Petitioner contends that “[t]he Board need not construe ‘mirror mimicking’ [beyond plain meaning] since the prior art expressly discloses mimicking a mirror.” Pet. Reply 6. Further. Petitioner characterizes the claim construction order as “a report and recommendation” by a magistrate judge that “the district court judge has not evaluated or adopted.” Id. at 6 n.2.9 We address infra whether the prior art “expressly” discloses “mirror- mimicking” as construed by the District Court. We, however, disagree with Petitioner that we should not construe this term. Given the controversy over whether Petitioner has argued for a different construction in the District Court, we cannot agree that an explicit construction of “mirror-mimicking” is an unnecessary step toward resolving this controversy. See Vivid Techs., Inc., 200 F.3d at 803. We therefore adopt the District Court’s construction for “mirror-” slip op. at 16

    • Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundMotivation foundDecided for petitioner

      “We do not agree. Petitioner demonstrates persuasively that a person of ordinary skill would have combined these references “to reduce distortion and provide a realistic mirror image.” Pet. 14–17; Haram Decl. ¶¶ 110–117. We are not persuaded by Patent Owner that by specifically disclosing “flipping” the image, Rosenberg is discouraging or teaching away from performing other transformations to achieve its objective of “replicat[ing] the performance of a standard household mirror.” See PO Resp. 32–33 (Patent Owner asserting lack of motivation to combine the references). A reference may be said to “teach away” “when a person of ordinary skill, upon reading the reference, would be discouraged from following the path set out in the reference, or would be led in a direction divergent from the path that was taken by the applicant.” Galderma Lab'ys, L.P. v. Tolmar, Inc., 737 F.3d 731, 738 (Fed. Cir. 2013). “A reference does not teach away, however, if it merely expresses a general preference for an alternative invention but does not criticize, discredit, or otherwise discourage investigation into the invention claimed. Id. Further, when conducting an obviousness analysis, the Board must consider a prior art reference “not only for what it expressly teaches, but also for what it fairly suggests.” Bradium Techs. LLC v. Iancu, 923 F.3d 1032, 1049 (Fed. Cir. 2019) (quoting In re Baird, 16 F.3d 380, 383 (Fed. Cir. 1994)). We are not convinced that the references before us “teach away” from performing the other transformations.” slip op. at 30

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
    • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
    Patent outcomesUS 8,982,109 not shown unpatentable
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 8,982,109
  • PTAB · Nov 4, 2025 · IPR2024-00856 · APJ Thomas L Giannetti · IPR · Final written decision

    Claims 1–18 were not shown unpatentable because the cited combinations did not teach or suggest varying the rate of the claimed image-processing steps according to user distance.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for patent owner

      “Patent Owner states that it “applies Petitioners’ proposed level of skill for purposes of this Response.” PO Resp. 14 (citing Forsyth Decl. ¶¶ 62– 63). For this Decision, we adopt the formulation of the level of ordinary skill in the art proposed by Petitioner and applied by Patent Owner as consistent with the prior art before us in this proceeding.7” slip op. at 13

    • Prior constructionPrior construction adoptedDecided for patent owner

      “Putting aside the controversy over alleged impropriety and sandbagging in connection with the District Court’s Order, which we address infra in connection with Patent Owner’s Motion to Strike, we find the District Court’s “mirror-mimicking” construction to be well-reasoned and supported by the record, and we therefore adopt that construction and its reasoning. As the District Court points out, both the “double the distance” and “same size” aspects of its construction are expressly discussed in the ’109 patent. See Ex. 2008, 16 (citing Ex. 1001, 2:5–27, Figs. 5A, 5B). So, too, is “flipping” or reversing of the image disclosed. Id. at 17 (citing Ex. 1001, 14:46–51, 15:41–47). Petitioner does not dispute that the ’109 patent discloses these aspects of “mirror-mimicking,” or even that the District Court’s claim construction is incorrect. Instead, Petitioner contends that “[t]he Board need not construe ‘mirror mimicking’ [beyond plain meaning] since the prior art expressly discloses mimicking a mirror.” Pet. Reply 6. Further. Petitioner characterizes the claim construction order as “a report and recommendation” by a magistrate judge that “the district court judge has not evaluated or adopted.” Id. at 6 n.2.9 We address infra whether the prior art “expressly” discloses “mirror- mimicking” as construed by the District Court. We, however, disagree with Petitioner that we should not construe this term. Given the controversy over whether Petitioner has argued for a different construction in the District Court, we cannot agree that an explicit construction of “mirror-mimicking” is an unnecessary step toward resolving this controversy. See Vivid Techs., Inc., 200 F.3d at 803. We therefore adopt the District Court’s construction for “mirror-” slip op. at 16

    • Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundMotivation foundDecided for petitioner

      “We do not agree. Petitioner demonstrates persuasively that a person of ordinary skill would have combined these references “to reduce distortion and provide a realistic mirror image.” Pet. 14–17; Haram Decl. ¶¶ 110–117. We are not persuaded by Patent Owner that by specifically disclosing “flipping” the image, Rosenberg is discouraging or teaching away from performing other transformations to achieve its objective of “replicat[ing] the performance of a standard household mirror.” See PO Resp. 32–33 (Patent Owner asserting lack of motivation to combine the references). A reference may be said to “teach away” “when a person of ordinary skill, upon reading the reference, would be discouraged from following the path set out in the reference, or would be led in a direction divergent from the path that was taken by the applicant.” Galderma Lab'ys, L.P. v. Tolmar, Inc., 737 F.3d 731, 738 (Fed. Cir. 2013). “A reference does not teach away, however, if it merely expresses a general preference for an alternative invention but does not criticize, discredit, or otherwise discourage investigation into the invention claimed. Id. Further, when conducting an obviousness analysis, the Board must consider a prior art reference “not only for what it expressly teaches, but also for what it fairly suggests.” Bradium Techs. LLC v. Iancu, 923 F.3d 1032, 1049 (Fed. Cir. 2019) (quoting In re Baird, 16 F.3d 380, 383 (Fed. Cir. 1994)). We are not convinced that the references before us “teach away” from performing the other transformations.” slip op. at 30

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

      “We find that Petitioner has not demonstrated by a preponderance of evidence that step 1(h) is taught or suggested by the references cited by Petitioner or the testimony of Petitioner’s expert, Dr. Karam. We agree, instead, with Patent Owner’s argument that “a [person of ordinary skill] would regard the disclosures in Rosenberg relating to proximity detection to be in connection with turning on or off various display modes and not in connection with varying the rate of one or more steps that are performed to transform a series of captured images of a user.” PO Resp. 33 (citing Ex.1005, ¶¶ 25, 32, 56, 69, 114). This distinction was explored during the final hearing. Petitioner’s counsel confirmed that in Rosenberg’s mirror mode, the rate of performing the processing steps does not vary: [THE BOARD]: It’s true that when the -- when Rosenberg is acting in the mirror mode, it’s always at the same rate, correct? It’s always performing those three processing steps at the same rate? [COUNSEL]: Correct. Hearing Tr. 34:13–16. We conclude that Rosenberg fails to disclose or suggest step 1(h) for the reasons given by Patent Owner and summarized above. We agree with Patent Owner’s analysis that in Rosenberg, when the mirror is off the processing steps are not performed, and when the mirror is on, the steps are performed “at an invariant rate.” PO Sur-reply 18–19.” slip op. at 33

    Patent outcomesUS 8,982,109 not shown unpatentable
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 8,982,109
  • PTAB · Oct 7, 2025 · IPR2024-01462 · APJ Jo-Anne M Kokoski · IPR · Rehearing

    The Board denied Solus’s rehearing request, leaving institution denied for claims 1–8 because the petition did not adequately show motivation to combine Hanafusa and Dobashi.

    RulingsRehearing decision
    • RehearingRehearing, deniedDenied

      “of the decision de novo, but instead review the decision for an abuse of discretion. 37 C.F.R. § 42.71(c). An abuse of discretion may be determined “if a decision is based on an erroneous interpretation of law, if a factual finding is not supported by substantial evidence, or if the decision represents” slip op. at 2

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

      “In particular, neither Petitioner nor Dr. Josefowicz adequately explain why a POSITA looking for ways to make Hanafusa’s surface roughness low-profile would look to methods to achieve Dobashi’s RSm values. Dobashi teaches that because RSm “can be adopted as the period of waviness, RSm can also be used as an indicator for judgment of the surface.” Ex. 1005, 2:66–3:1, 6:23–26. Dobashi explains that waviness is “an indicator for determining whether the fine pattern forming performance is good or bad,” and “[t]he surface has small waviness and is smooth when RSm is large, and the surface has large waviness Dobashi also teaches that surface roughness Rzjis is used as a low-profile indicator. Ex. 1005, 2:66–3:1. Dobashi, therefore, teaches that RSm is an indicator of surface waviness, which Dobashi explains is different than surface roughness. Id. at 2:66– 3:3, 6:23–29. Given these teachings in Dobashi, neither Petitioner nor Dr. Josefowicz sufficiently explains how or why a POSITA would have been motivated to implement Dobashi’s RSm values to make Hanafusa’s surface roughness low-profile. See Pet. 10–12; Ex. 1003 ¶¶ 46–52.” slip op. at 4

    § 103 obviousness
    Patents in suitUS 11,346,014
  • PTAB · Oct 7, 2025 · IPR2024-01461 · APJ Jo-Anne M Kokoski · IPR · Rehearing

    The Board denied rehearing and left in place its denial of institution because Petitioner did not show that claims 1–10 were likely obvious over the asserted combinations.

    RulingsRehearing decision
    • RehearingRehearing, deniedDenied

      “II. STANDARD OF REVIEW When rehearing a decision on institution, we do not review the merits of the decision de novo, but instead review the decision for an abuse of discretion. 37 C.F.R. § 42.71(c). An abuse of discretion may be determined “if a decision is based on an erroneous interpretation of law, if a factual finding is not supported by substantial evidence, or if the decision represents an unreasonable judgment in weighing relevant factors.” Arnold Partnership v. Dudas, 362 F.3d 1338, 1340 (Fed. Cir. 2004) (citing In re 1 US 2013/0108922 A1, published May 2, 2013 (Ex. 1004, “Shinozaki”). 2 G. Khatibi, Temperature Dependent Elastic and Thermal Properties of Thin Copper Foils, Copper; Proceedings of the International Conference Copper ’06 (2006) (Ex. 1006, “Khatibi”). 3 Korean Patent Pub. No. 10-2012-0003485, published Jan. 10, 2012 (Ex. 1013; Ex. 1014 (English translation), “Toshio”). 4 US 2013/0108887 A1, published May 2, 2013 (Ex. 1012, “Kim”). 5 Griesi, M.B., Characterization of Electrodeposited Copper Foil Surface Roughness for Accurate Conductor Power Loss Modeling (2014) (Master’s Thesis, University of South Carolina) (Ex. 1015, “Griesi”). rehearing has the burden to show that the decision should be modified. 37 C.F.R. § 42.71(d). Additionally, the request for rehearing “must specifically identify all matters the party believes the Board misapprehended or overlooked, and the place where each matter was previously addressed in a motion, an opposition, or a reply.” Id.” slip op. at 2

    • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Not shown unpatentable

      “For example, Dr. Randall does not provide adequate explanation or objective evidence to support his opinion that Khatibi’s use of a laser speckle based dilatometer instead of the claimed thermomechanical analyzer “is unlikely to significantly impact the CTE[6] value” because “variations in equipment and a heating speed of 5° C/min would not significantly alter the results.” Ex. 1003 ¶ 58. In particular, Dr. Randall neither explains what constitutes a “significant” impact on CTE, nor provides objective evidence to support his contention that equipment variations and heating differences would not “significantly alter” the resulting measurements. And although Dr. Randall opines that “the heating rate (5°C per minute) is typical for certain devices” such as a thermomechanical analyzer or dilatometer, and “[t]ypically, these devices use temperature ramp rates between 2°C and 20°C per minutes, so the ‘5° C./min’ recited in [1d] is common and should not drastically affect the measurement results,” Dr. Randall fails to point us to any evidence showing that these temperatures are “typical” or that the claimed heating rate is “common.” Id. ¶ 59 (emphases added).” slip op. at 4

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

      “Petitioner, however, does not adequately explain why a POSITA would have been motivated to modify Kim’s copper foil surface to have a Pc value of 19.2 as reported in Griesi. In particular, neither Petitioner nor Dr. Randall points us to, nor do we discern, any teaching in Griesi that a peak count of 19.2 provides any particular benefits or properties that would have lead a POSITA to modify Kim’s copper foil surface as Petitioner proposes. Instead, Petitioner’s arguments that a POSITA would have been motivated to modify Kim’s copper foil surface with Griesi’s peak count patent itself. See KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 421 (2007) (stating that the fact finder must be aware “of the distortion caused by hindsight bias and must be cautious of arguments reliant upon ex post reasoning”). It was Petitioner’s burden to establish that the combined teachings Kim and Griesi disclose limitation [1g] as proposed. We are not persuaded that we misapprehended Petitioner’s argument when we determined that Petitioner did not meet that burden.” slip op. at 8

    • BurdenDecided for patent owner

      “It was Petitioner’s burden to establish the Khatibi, alone or in combination with Shinozaki, Toshio, and Kim, discloses limitation [1d]. We concluded that Petitioner failed to meet that burden for the reasons explained in our Decision. We are not persuaded that we overlooked or misapprehended Khatibi’s disclosures, or Petitioner’s evidence and explanation thereof, in doing so.7” slip op. at 5

    § 103 obviousnesscites KSR
    Patents in suitUS 10,811,689
  • PTAB · Apr 22, 2025 · IPR2024-01460 · APJ Jon B Tornquist · IPR · Institution

    The Board denied institution of review of claims 1–11 because the Fintiv factors, including the early trial date and close merits case, favored discretionary denial.

    RulingsInstitution decision
    • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied fintivInstitution denied

      “whether to institute an inter partes review. Applying the standard set forth in 35 U.S.C. § 314(a), we may not institute an inter partes review unless the information presented in the petition “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.” Institution of inter partes review, however, is discretionary. See Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1367 (Fed. Cir. 2016) (“[T]he PTO is permitted, but never compelled, to institute an IPR proceeding.”). For the reasons stated below, we exercise our discretion not to institute an inter partes review. A. Real Parties-in-Interest” slip op. at 2

    • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivDenied

      “Board’s projected statutory deadline to issue a final written decision. Fintiv, Paper 11 at 9. “If the court’s trial date is at or around the same time as the projected statutory deadline . . . the decision whether to institute will likely implicate other factors.” Id. Conversely, “[i]f the court’s trial date is earlier than the projected statutory deadline,” this has generally weighed “in favor of exercising authority to deny institution.” Id.” slip op. at 15

    • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsNot reached

      “Petition under 35 U.S.C. § 325(d) because the same or substantially the same art and arguments were before the Examiner during prosecution and Petitioner’s has not demonstrated that the Examiner erred in a material manner when allowing the claims. Pet. 17–18. Given our discretionary denial of the Petition in view of the Fintiv factors, we do not address Petitioner’s further arguments with respect to § 325(d).” slip op. at 32

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Patent Owner applies Petitioner’s recited level of ordinary skill in the art for purposes of its Preliminary Response. Prelim. Resp. 4. Upon review of the parties’ arguments and the prior art of record, we adopt Petitioner’s unopposed definition of the ordinarily skilled artisan for purposes of this decision as it appears consistent with the disclosures of the ’090 patent and the prior art of record. C. Claim Construction” slip op. at 9

    § 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
    Patents in suitUS 10,480,090
  • PTAB · Apr 7, 2025 · IPR2024-01428 · APJ Miriam L Quinn · IPR · Institution

    The Board denied institution on claims 1-3, 5, 7-10, 12, 14-17, 20-23, and 26 under its Fintiv analysis, finding the parallel trial date and other factors favored discretionary denial.

    RulingsInstitution decision
    • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivDenied

      “is our focus here. As stated, that trial is set to occur about six months before a final written decision would issue in this proceeding. The District Court has stated that this trial date setting “cannot be changed without an acceptable showing of good cause.” Prelim. Resp. 46. We are not persuaded by Petitioner’s unsupported argument that the trial date is speculative. We also consider the fact that the median time-to-trial statistic discussed by both parties projects a trial date of July 2025, earlier than the actual date set by the District Court. Ex. 2001; Prelim. Resp. 46; Reply 5. The fact that the time-to-trial statistic is earlier than the trial date set by Judge Gilstrap confirms that the schedule set by the District Court is credible and should be given weight. From this evidence, we are persuaded that we should rely on the trial date in the Lenovo Group litigation as the main indicator of a trial court reaching the merits of the invalidity of the patent-atissue before we issue a final written decision. Accordingly, this factor strongly favors exercising discretionary denial.” slip op. at 6

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

      “Finally, Petitioner argues obviousness over each of Banes and Calvignac. These assertions of obviousness rely on testimony on the understanding of a person of ordinary skill in the art of the “spare” code and flags as “out-of-band symbols.” Pet. 20−21. Petitioner also argues that it was “well-known” to include in-band symbols in data packets and to include out-of-band symbols in control indicators to obtain the benefit of allowing data payload information to be readily distinguished from control information. Pet. 63−64. The testimony cited in support relies on the disclosure of Shin ’464 for this statement.5 Ex. 1003 ¶ 225. The exact same disclosure of an 8-bit encoding technique that uses in-band and out-of-band symbols within a transmission is found in another Shin patent that is incorporated by reference in the ’905 patent and has overlapping inventors. Ex. 1006, 9:60−10:8, Ex. 1008, 5:15−28, Ex. 1001, 24:50−55. In other words, the alleged benefit may be better characterized as part of the inventor team’s work rather than a technique “well-known” in the art. And for this reason, Petitioner’s obviousness contentions are less persuasive. 5 U.S. Patent No. 5,974,464, filed September 30, 1996. (Ex. 1006, “Shin ’464”).” slip op. at 15

    § 103 obviousnessDiscretionary denialcites KSR
    Patents in suitUS 7,154,905
  • PTAB · Mar 18, 2025 · IPR2023-01383 · APJ Kimberly Mcgraw · IPR · Final written decision

    Claims 1–5 were not shown unpatentable because Petitioner did not sufficiently establish a reason to modify the asserted prior art.

    RulingsFinal written decision
    • Expert testimonyPatent owner expert creditedDecided for patent owner

      “We disagree with Petitioner’s argument because it fails to address Dr. Schubert’s academic and other experience with GaN transistors. Dr. Schubert is currently a tenured full professor in the Department of Electrical Computer, and Systems Engineering at Rensselaer Polytechnic Institute and was previously a tenured full professor in the Department of Electrical and Computer Engineering at Boston University. Ex. 2001, 129. Additionally, Dr. Schubert was the director of Boston University’s Semiconductor Devices Research Laboratory. Ex. 2001, 129. Dr. Schubert persuasively explains that his general expertise is in the field of electrical engineering and applied physics, including semiconductors, processing, and devices and his specific expertise is in the field of semiconductor materials (such as GaN), semiconductor devices, semiconductor integrated circuits, ohmic contacts, Schottky contacts, HEMTs, and optoelectronic devices such as light-emitting diodes (LEDs). Ex. 2001 ¶ 11, App’x A pp.129–137. His experience includes “the design, growth, fabrication, and testing of semiconductor devices as well as the employment of these devices in a variety of applications” and he is “familiar with both the design of such transistors [HEMTs] and the manufacturing processes used for FETs. Ex. 2001 ¶ 11, App’x A, pp. 129–137. He is an author or co-author of numerous text books and articles, and co-inventor of numerous patents, including those dealing with HEMT transistors and GaN devices. Ex. 2001 ¶ 13, App’x A, pp. 129–137. Petitioner fails to present any persuasive argument or evidence that Dr. Schubert’s extensive education and experience regarding GaN transistors is insufficient or lacking such that his testimony should be given little weight. Finally, we disagree with Petitioner’s additional argument that that its expert’s testimony (Dr. Shealy) should be given more weight than Patent Owner’s expert’s testimony (Dr. Schubert) because “[u]nlike Dr. Schubert, Dr. Shealy is one of the pioneer scientists in the field of GaN transistors.” Reply 34 (stating that Dr. Shealy’s research lab built the first GaN HEMT device on silicon in 1999 and citing Ex. 2002, 87:19–238). Obviousness is determined through the lens of a “person of ordinary skill in the art,” not through the lens of a person with extraordinary skill or a pioneer in the field. Given Dr. Schubert’s extensive relevant education and experience, Petitioner does not persuasively explain why Dr. Shealy’s testimony on any specific topic, or his testimony in general, should be given more weight than Dr. Schubert’s.” slip op. at 16

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “understanding of a person of ordinary skill in the art (sometimes abbreviated herein as “POSITA”). Graham, , 383 U.S. at 17–18. Petitioner argued that a person of ordinary skill in the art would have had a “at least a four-year degree in electrical engineering, chemical engineering, physics, or material science or a closely related field and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies. Additional education could substitute for professional experience and vice versa.” Pet. 11 (citing Ex 1003 ¶ 69). Patent Owner did not dispute this proposed definition prior to institution. See generally Prelim. Resp. In our Decision on Institution, we adopted Petitioner’s proposal. After institution, Patent Owner asserted a slightly different definition of a POSITA, namely someone who “would have possessed at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” Resp. 17. Relevant graduate education could substitute for the professional work experience. Id. Upon review of the full record, we see no reason to modify, and we thus maintain, the definition of a POSITA applied in our Decision on Institution. We also determine that our decision would be the same under either of the parties’ proposed definitions.” slip op. at 14

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Not reached

      “During the proceeding, the parties also dispute the proper construction of “etching away the doped GaN layer, except a portion of the doped GaN layer beneath the gate contact” as recited in step [1e4] and provided briefing on this issue. Papers 35, 36, 37, 38. Because, as explained below, our determination rests upon Petitioner’s failure to show a sufficient reason to modify the asserted art, which is not dependent upon any particular claim construction, we need not, and do not, address these claim construction issues. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)) (holding that only claim terms in controversy need to be construed, and only to the extent necessary to resolve the controversy).” slip op. at 13

    • ExcludeDenied

      “III. PETITIONER’S MOTION TO EXCLUDE EXHIBIT 2008 Petitioner filed a Motion to Exclude (Paper 25, “Mot.”) Exhibit 2008, which is a hearing transcript from the parallel ITC investigation. Mot. 1. Because we do not rely upon Exhibit 2008 in our Decision, we dismiss Petitioner’s motion as moot.” slip op. at 47

    Patent outcomesUS 8,404,508 not shown unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR
    Patents in suitUS 8,404,508
  • PTAB · Mar 7, 2025 · IPR2024-01347 · APJ Thomas L Giannetti · IPR · Institution

    The Board instituted IPR of claims 1–27 on all grounds, finding a reasonable likelihood that Petitioner would prevail on at least one challenged claim.

    RulingsInstitution decision
    • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDenied

      “framework: (1) whether the same or substantially the same art previously was presented to the Office or whether the same or substantially the same arguments previously were presented to the Office; and (2) if either condition of the first part of the framework is satisfied, whether the petitioner has demonstrated that the Office erred in a manner material to the patentability of challenged claims. Advanced Bionics, LLC v. MED-EL Elektromedizinische Geräte GmbH, IPR2019-01469, Paper 6 at 8 (PTAB Feb. 13, 2020) (precedential). We must also consider the non-exclusive factors set forth in Becton, Dickinson and Co. v. B. Braun Melsungen AG, IPR2017-01586, Paper 8 (PTAB Dec. 15, 2017) (precedential in relevant part), which “provide useful insight into how to apply the framework” under § 325(d). Advanced Bionics, Paper 6 at 9. Those non-exclusive factors include: (a) the similarities and material differences between the asserted art and the prior art involved during examination; (b) the cumulative nature of the asserted art and the prior art evaluated during examination; (c) the extent to which the asserted art was evaluated during examination, including whether the prior art was the basis for rejection; (d) the extent of the overlap between the arguments made during examination and the manner in which Petitioner relies on the prior art or Patent Owner distinguishes the prior art; (e) whether Petitioner has pointed out sufficiently how the Examiner erred in its evaluation of the asserted prior art; and” slip op. at 13

    • Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) appliesNo construction neededOther

      “1. Means-Plus-Function Terms Challenged claim 26 recites elements using the word “means.” See Ex. 1001, 21:6–22:5. The use of the word “means” in a claim element creates a rebuttable presumption that 35 U.S.C. § 112 ¶ 6 applies.9 See Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1348 (Fed. Cir. 2015) (en banc in relevant part). Construing a means-plus-function claim term is a two-step process. We must first identify the claimed function. Then, we must determine what structure, if any, disclosed in the specification corresponds to the claimed function. Id. at 1351 (citation omitted). The parties do not dispute that 35 U.S.C. § 112 ¶ 6 applies to those “means” elements recited in claim 26. See Pet. 6–8; see generally Prelim. Resp. a. “system firmware means for detecting loss of lockstep (LOL) for a processor in a multi-processor system” (Claim limitation [26a])” slip op. at 24

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

      “Petitioner argues that these terms “should be construed to include both mismatch errors and errors that may eventually result in mismatch errors constituting a ‘precursor to lockstep mismatch’—including at least one of (1) detecting a lockstep mismatch error; and (2) detecting an error that may eventually cause a lockstep mismatch error.” Pet. 6. Petitioner asserts that “[t]he specification provides detecting these two types of errors as examples of detection of LOL.” Id. (citing Ex. 1001, 2:40–3:6, 7:25–36; Brogioli Decl. ¶¶ 34–36). Petitioner further asserts that this construction “is consistent with the undisputed construction in the IPR challenging U.S. Patent No. 7,502,958.” Id. (citing BMW of N. Am., LLC v. Foras Techs. Ltd., IPR2023-01373, Paper 18 at 2 (PTAB July 12, 2024)). Patent Owner does not dispute Petitioner’s position or discuss claim construction in the Preliminary Response. meaning of these claim terms that would affect this Decision. Therefore, we determine that at this stage, we do not need to expressly construe these claim terms to resolve a controversy. 3. Summary and Conclusion For the reasons given, we determine that at this stage, we do not need expressly to construe any claim term for this Decision. See 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., 200 F.3d at 803)).” slip op. at 26

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “alleged invention “would have at least a bachelor’s degree in computer science, computer engineering, or equivalent, and at least two years of prior work experience with computer architecture design, including fault-tolerant computer architecture design,” and “[a]dditional education could substitute for professional experience and vice versa.” Pet. 4 (citing Brogioli Decl. ¶¶ 28–30). At this stage, Patent Owner does not respond to this contention. For the purpose of institution, we adopt Petitioner’s definition of a person of ordinary skill in the art because it is consistent with the level of skill reflected by the ’302 patent specification and the asserted prior art.” slip op. at 27

    Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
    Patents in suitUS 7,624,302
  • PTAB · Mar 7, 2025 · IPR2024-01346 · APJ Thomas L Giannetti · IPR · Institution

    The Board instituted IPR on claims 1–30 and all petition grounds, finding a reasonable likelihood of unpatentability based on Fox, Safford, and Arai, with or without Landry.

    RulingsInstitution decision
    • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDenied

      “As can be seen in the discussion above and the analysis of Petitioner’s grounds below, Arai and Landry are significant to Petitioner’s challenges. Because the Office did not previously consider all of the prior art references or combinations of references relied on in the Petition, including Arai and Landry, and because Arai and Landry are not the same or substantially the same as the art that was previously considered, we determine the Office did not previously consider the same or substantially the same prior art as is relied on in the Petition.8 Further, we find that there is not a substantial overlap, if any, between the arguments made during examination and the manner in which Petitioner relies on the prior art, including Arai and Landry, as discussed above. Therefore, part one of the Advanced Bionics framework is not met, and we need not proceed to part two of the Advanced Bionics framework. See Advanced Bionics, IPR2019-01469, Paper 6 at 8.” slip op. at 24

    • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted

      “We have authority to determine whether to institute review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). An inter partes review may not be instituted unless it is determined that “the information presented in the petition filed under section 311 and any response filed under section 313 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). For the reasons provided below, we determine, based on the record before us, there is a reasonable likelihood Petitioner would prevail in showing at least one of the challenged claims is unpatentable. Furthermore, we deny Patent Owner’s request that we exercise our discretion to deny institution in this proceeding under 35 U.S.C. § 325(d). We therefore institute inter partes review on all challenged claims and all grounds. See” slip op. at 2

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

      “Motivation to Combine Fox, Safford, and Arai and Fox, Safford, Landry, and Arai Petitioner asserts that a person of ordinary skill “would have found it obvious to combine Fox’s multiprocessor system with Safford’s lockstep processor and error detection logics and Arai’s processor-switching implementation details.” Pet. 10. Dr. Brogioli testifies that “[a person of ordinary skill] would have been motivated to implement the processors in Fox as lockstep processors to improve reliability and availability of Fox’s server system for critical processes, for which higher reliability and availability of the system are desired.” Brogioli Decl. ¶ 90. He further testifies that “[a person or ordinary skill] also would have been motivated to implement in Fox the error detection logics that detect loss of lockstep together with the lockstep processors as taught by Safford to implement lockstep functions and further improve availability of the system.” Id. He testifies that “[a person of ordinary skill] would have understood how to implement Fox’s processors as lockstep processors with error detection logics and expect success. [A person of ordinary skill] would only have applied well-known configurations and ordinary hardware and software configuration skills.” Id. ¶ 91. Dr. Brogioli provides additional reasons motivating the combination. Id. ¶¶ 92–99. Petitioner contends that “Arai discloses switching the role of a failing processor with a spare processor.” Pet. 10. Dr. Brogioli testifies that “[a person of ordinary skill] would have been motivated to incorporate Arai’s teaching of transferring processor context from the failing processor to the spare processor not to interrupt the operating system and its running applications as desired by Fox.” Brogioli Decl. ¶ 109. He reasons that “[a person of ordinary skill] would have understood that incorporating Arai’s benefit of switching the role of the failing processor to the spare processor without affecting the operating system and running applications, which is expressly taught as desirable by both Fox and Arai and well known in the art.” Id. ¶ 110. Petitioner asserts that a person of ordinary skill also would have been motivated to further combine these references with Landry. Pet. 33–35. Dr. Brogioli testifies that “Landry discloses a fault-tolerant boot process that dynamically designates a functional CPU as logical CPU0 that performs the unique functions of a boot processor.” Brogioli Decl. ¶ 147. He testifies further that “[a person of ordinary skill] would have understood Landry’s process would have been a suitable option for selecting a boot processor in Fox’s system consistent with the initialization protocol of the IA-32 multiprocessor system.” Id. He asserts that “[a person of ordinary skill] would have understood the benefits of implementing Landry’s boot processor selection process in Fox.” Id. ¶ 148. Among other reasons, “[a person of ordinary skill] would have further understood that using the logical CPU0 as the identification for the boot processor allows for transparent replacement of the physical processor experiencing a failure with another processor without interrupting the operating system.” Id. At this stage, Patent Owner does not respond to these arguments by Petitioner or refute the testimony by Dr. Brogioli. On this record, we find that Petitioner has sufficiently demonstrated a motivation to combine Fox and Safford with Arai and to further combine these references with Landry with a reasonable expectation of success.” slip op. at 29

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

      “We are not aware of any controversy between the parties over the meaning of these claim terms that would affect this Decision. Therefore, we determine that at this stage, we do not need to expressly construe these claim terms to resolve a controversy.” slip op. at 26

    Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
    Patents in suitUS 7,627,781
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