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  • PTAB · Jun 3, 2026 · IPR2022-00981 · APJ Jameson Lee · IPR · Remand

    On remand, claims 8–11, 13, 17, and 19 were held unpatentable over Rautiola, Regnier, and Sainton; claim 15 was not shown unpatentable.

    RulingsRemand decision
    • RemandMixed

      “8–11, 13, 15, 17, and 19, and remanded “for consideration of the patentability of those claims.” Id. at 14. We understand both the reversal and vacature are with respect to Ground 1 of alleged unpatentability, not Ground 2, because the Federal Circuit’s decision did not discuss anything relating to Ground 2. Paper 43. The parties agreed. Paper 44. In this remand proceeding, neither party requested the filing of additional briefing or evidence. In a telephone conference call, both parties expressed agreement with the Board (1) that “there is no issue regarding collateral estoppel or issue preclusion with respect to dependent claims 8– 11, 13, 15, 17, and 19, and (2) that the remand proceeding would not involve the Board revisiting any matter or issue concerning alleged obviousness of claims 1, 8, 9, 11, 13, 17, and 19 over Ground 2.4 Papers 43, 44. The parties also agreed that the remand proceeding would only involve the Board reviewing the alleged obviousness of dependent claims 8–11, 13, 15, 17, and 19 as obvious over Rautiola, Regnier, and Sainton. Id. We have authority to conduct this inter partes review under 35 U.S.C. § 6. This Final Written Decision on Remand is issued pursuant to 35 U.S.C. § 318(a) and 37 C.F.R. § 42.73. On the record before us, which is the same as the record before us at the time we issued the first final written decision (Paper 34), we determine that Petitioner has proved by a preponderance of the evidence that claims 8– 11, 13, 17, and 19, but not claim 15, of the ’936 patent are unpatentable over Rautiola, Regnier, and Sainton.” slip op. at 3

    • Expert testimonyPetitioner expert creditedDecided for patent owner

      “5. Petitioner’s Request to Discredit Dr. Cooklev’s Declaration Petitioner makes several arguments discrediting Dr. Cooklev’s declaration (Ex. 2031) and asserts that Dr. Cooklev’s declaration should be accorded little to no weight. Reply 13–14. We have already considered and rejected this request in the Final Written Decision issued on November 7, 2023. Paper 34, 21–23. Our reasoning need not be reiterated here. Petitioner does not persuade us that Dr. Cooklev’s declaration testimony should be accorded little to no weight.” slip op. at 15

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Patent Owner does not dispute Petition’s definition of level of ordinary skill. See generally PO Resp. Patent Owner’s expert, Dr. Cooklev, accepts Dr. Kotzin’s proposed level of ordinary skill in the art. Ex. 2031 ¶ 24. We adopt Petitioner’s proposal regarding the level of ordinary skill in the art. This level of ordinary skill in the art is supported by the testimony of Dr. Kotzin (Ex. 1003 ¶¶ 20–22) and is consistent with the level reflected in the ’936 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 9

    • Obviousness (§103) › Analogous artAnalogous artDecided for petitioner

      “only when it is analogous to the claimed invention.” Airbus S.A.S. v. Firepass Corp., 941 F.3d 1374, 1379 (Fed. Cir. 2019). A prior art reference constitutes analogous art if it is “from the same field of endeavor” or “reasonably pertinent to the particular problem with which the inventor is involved.” In re Bigio, 381 F.3d 1320, 1325 (Fed. Cir. 2004). The petitioner bears the burden of establishing that a reference is analogous art. See Sanofi-Aventis Deutschland GmbH v. Mylan Pharms. Inc., 66 F.4th 1373, 1377 (Fed. Cir. 2023).” slip op. at 16

    Patent outcomesUS 8,472,936 mixed
    § 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,472,936
  • PTAB · May 28, 2026 · IPR2025-00351 · APJ Brian P Murphy · IPR · Final written decision

    Claims 1–9 are unpatentable as obvious over the stated combinations; claims 10–26 were not shown unpatentable because Avellan does not teach limitations [10d]–[10f].

    RulingsFinal written decision
    • Skill levelOther

      “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.” Pet. 10 (citing Ex. 1002 ¶¶ 67–68). The Petition 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 and does not take issue with the Petition’s characterization of the level of ordinary skill in the art of delivering multimedia content. Resp. 18. We determine that no express finding is necessary 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). Any perceived difference in how each party characterizes a POSITA’s education, knowledge, and work experience does not change our analysis or conclusions. slip op. at 7

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner

      “Neither party has offered any claim construction arguments, relying on ordinary and customary meaning. Pet. 11; Resp. 18–19; Reply 5. We determine that construction of claim terms is not necessary to resolve the disputes raised by the parties in this proceeding. See, e.g., Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011) (“[C]laim terms need only be construed ‘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

    • Expert testimonyPetitioner expert creditedDecided for petitioner
    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element) › Inherent disclosureInherency not foundNot shown unpatentableNot shown unpatentable

      “To establish inherency, the extrinsic evidence “must make clear that the missing descriptive matter is necessarily present in the thing described in the reference, and that it would be so recognized by persons of ordinary skill.” Continental Can Co. v. Monsanto Co., 948 F.2d 1264, 1268 (Fed. Cir. 1991). “‘Inherency, however, may not be established by probabilities or possibilities. The mere fact that a certain thing may result from a given set of circumstances is not sufficient.’” Id. at 1269 (quoting In re Oelrich, 666 F.2d 578, 581 (C.C.P.A. 1981)). Reasonable inferences of a POSITA may suffice to establish inherent disclosure in a prior art reference such as Farber. See Eli Lilly v. Los Angeles Biomedical Research Institute, 849 F.3d 1073, 1074–1075 (Fed. Cir. 2017) (“[T]he dispositive question regarding anticipation is whether one skilled in the art would reasonably understand or infer from a prior art reference that every claim element is disclosed in that reference.”). Here, however, we find the Petition’s argument and evidence insufficient to establish by a preponderance of the evidence that Farber inherently discloses limitation [1b].” slip op. at 16

    Patent outcomesUS 11,140,441 mixed
    Claim construction§ 102 anticipation§ 103 obviousness
    Patents in suitUS 11,140,441
  • PTAB · May 4, 2026 · IPR2021-01452 · APJ Sheridan K Snedden · IPR · Remand

    On remand, claims 6, 8, 9, 13, and 19 are unpatentable; claims 2–5, 11, 12, 17, and 18 were not shown unpatentable over Slater or Slater and Weaver.

    RulingsRemand decision
    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableNot shown unpatentableMixed

      “Accordingly, for the same reasons expressed by our previous decision addressing claim 8 of the ’085 patent, and the court’s analysis in Stryker, we conclude that Slater does not anticipate claims 2–5, 11, 12, 17, and 18 of the ’716 patent because Slater deliberately describes a variable angle hole that lacks a single predetermined angle—that is, Slater describes a transfixation screw hole that does not have a central axis defining the trajectory.” slip op. at 14

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

      “In its Petition, Petitioner contends that Weaver discloses the limitations in claim 6 and that it would have been obvious to add Weaver’s features to Slater’s plate to provide a more secure fixation between the screws and the plate. Pet. 36–39; Ex. 1002 ¶¶ 188–196. Specifically, Petitioner contends that configuring Slater’s transfixation screw hole (claim 6) or at least one of Slater’s attachment points (claim 8) as a threaded screw hole to lockably engage the head of a locking screw would have been an obvious design choice “because locking screws ‘provide a high resistance to shear or torsional forces’ and reduce the incidence of screw loosening.” Pet. 39 (quoting Ex. 1009, 1:57–58); Ex. 1009, 1:46–48; Ex. 1002 ¶¶ 191– 196. Petitioner otherwise relies on its anticipation analysis for claim 1 discussed above. Pet. 36.” slip op. at 18

    Patent outcomesUS 9,763,716 mixed
    § 102 anticipation§ 103 obviousness
    Patents in suitUS 9,763,716
  • PTAB · May 4, 2026 · IPR2021-01450 · APJ Sheridan K Snedden · IPR · Remand

    On remand, claims 6, 8–10, 14, and 17 are unpatentable; claims 2–5, 12, and 13 were not shown unpatentable, based on anticipation by Slater and obviousness over Slater and Weaver.

    RulingsRemand decision
    • RemandMixed

      “Appeals for the Federal Circuit. The court issued its decision in Stryker Corp. v. OsteoMed LLC, No. 2023-1925, 2025 WL 2814019 (Fed. Cir. Oct. 3, 2025) (“Stryker”) (Paper 49),1 affirming-in-part, reversing-in-part, vacating and remanding-in-part our Final Written Decision (Paper 46) for further proceedings. In its opinion, the Federal Circuit reversed our finding of no anticipation as to independent claims 1 and 11 of U.S. Patent No. 8,529,608 B2 (“the ’608 patent,” Ex. 1001), and vacated and remanded for further proceedings to evaluate whether dependent claims 2–6, 8–10, 12–14, and 17 (the “Remanded Claims”) are similarly unpatentable in view of Petitioner’s challenges relying on the Slater reference. Stryker, slip op. at 14–15. We have jurisdiction under 35 U.S.C. § 6. We issue this Final Written Decision on Remand pursuant to 35 U.S.C. §§ 144, 318 and 37 C.F.R. § 42.73 in an inter partes review involving Stryker Corporation and Wright Medical Technology, Inc. (collectively, “Petitioner”) and OsteoMed LLC (“Patent Owner”). For the reasons discussed below, after considering the entirety of the record in light of the Federal Circuit’s directives in Stryker, we find by a preponderance of the evidence that claims 6, 8–10, 14, and 17 are unpatentable. We also conclude that Petitioner has not demonstrated, by a preponderance of the evidence, that claims 2–5, 12, and 13 are unpatentable.” slip op. at 2

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableNot shown unpatentableMixed

      “Accordingly, for the same reasons expressed by our previous decision addressing claim 8 of the ’085 patent, and the court’s analysis in Stryker, we conclude that Slater does not anticipate claims 2–5, 12, and 13 of the ’608 patent because Slater deliberately describes a variable angle hole that lacks a single predetermined angle—that is, Slater describes a transfixation screw hole that does not have a central axis defining the trajectory.” slip op. at 13

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

      “limitations in claim 6 and that it would have been obvious to add Weaver’s features to Slater’s plate to provide a more secure fixation between the screws and the plate. Pet. 37–39; Ex. 1002 ¶¶ 161–169. Specifically, Petitioner contends that configuring Slater’s transfixation screw hole (claim 6) or at least one of Slater’s attachment points (claim 8) as a threaded screw hole to lockably engage the head of a locking screw would have been an obvious design choice “because locking screws ‘provide a high resistance to shear or torsional forces’ and reduce the incidence of screw loosening.” Pet. 39 (quoting Ex. 1009, 1:57–58); Ex. 1009, 1:46–48; Ex. 1002 ¶¶ 162– 163. Petitioner otherwise relies on its anticipation analysis for claim 1 discussed above. Pet. 37. Patent Owner raised no separate argument regarding the patentability of claims 6 and 8, instead relying solely on its argument that Slater does not anticipate independent claim 1, on which claims 6 and 8 depend. PO Resp. 46; Reply 4 (“Patent Owner does not challenge the combination of Slater and Weaver for claims 6 and 8.”). We have reviewed Petitioner’s arguments and evidence as to the undisputed limitations of claims 6 and 8 and find that Petitioner establishes that the combination of Slater and Weaver discloses all of the limitations of claims 6 and 8, and that one of ordinary skill in the art would have been motivated to combine Slater and Weaver for the reasons provided by Petitioner. We adopt Petitioner’s arguments and evidence as to these limitations as our own. See Pet. 37–39.” slip op. at 19

    Patent outcomesUS 8,529,608 mixed
    § 102 anticipation§ 103 obviousness
    Patents in suitUS 8,529,608
  • PTAB · May 4, 2026 · IPR2021-01451 · APJ Sheridan K Snedden · IPR · Remand

    On remand, claims 6, 8, 9, and 13 were held unpatentable; claims 2–5, 11, and 12 were not shown unpatentable because Slater lacks the claimed central axis.

    RulingsRemand decision
    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableUnpatentableMixed

      “addressing the ’085 patent and by the court’s analysis in Stryker, we conclude that Slater does not anticipate claims 2–5, 11, and 12 of the ’776 patent because Slater deliberately describes a variable angle hole that lacks a single predetermined angle—that is, Slater describes a transfixation screw hole that does not have a central axis defining the trajectory.” slip op. at 13

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

      “In its Petition, Petitioner contends that Weaver discloses the limitations in claim 6 and that it would have been obvious to add Weaver’s features to Slater’s plate to provide a more secure fixation between the screws and the plate. Pet. 36–39; Ex. 1002 ¶¶ 169–74. Specifically, Petitioner contends that configuring Slater’s transfixation screw hole (claim 6) or at least one of Slater’s attachment points (claim 8) as a threaded screw hole to lockably engage the head of a locking screw would have been an obvious design choice “because locking screws ‘provide a high resistance to shear or torsional forces’ and reduce the incidence of screw loosening.” Pet. 39 (quoting Ex. 1009, 1:57–58); Ex. 1009, 1:46–48; Ex. 1002 ¶¶ 169– 74. Petitioner otherwise relies on its anticipation analysis for claim 1 discussed above. Pet. 36.” slip op. at 17

    • RemandOther

      “Appeals for the Federal Circuit. The court issued its decision in Stryker Corp. v. OsteoMed LLC, No. 2023-1925, 2025 WL 2814019 (Fed. Cir. Oct. 3, 2025) (“Stryker”) (Paper 49),1 affirming-in-part, reversing-in-part, vacating and remanding-in-part our Final Written Decision (Paper 46, “FWD”) for further proceedings. In its opinion, the Federal Circuit reversed our finding of no anticipation as to independent claims 1 and 10 of U.S. Patent 9,351,776 B2 (“the ’776 patent,” Ex. 1001), and vacated and remanded for further proceedings to evaluate whether dependent claims 2–6 and 8, 9 and 11–13 (the “Remanded Claims”) are unpatentable in view of Petitioner’s challenges relying on the Slater reference. Stryker, slip op. 14– 15.” slip op. at 2

    Patent outcomesUS 9,351,776 mixed
    § 102 anticipation§ 103 obviousness
    Patents in suitUS 9,351,776
  • PTAB · Apr 29, 2026 · IPR2024-01493 · APJ John D Hamann · IPR · Final written decision

    Claims 1, 3, 5, 7–11, 14, and 15 are unpatentable as obvious; claims 2, 4, 6, 12, and 13 were not shown unpatentable because the references did not establish entirely crystallized CoFeB layers.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “In our Decision on Institution, we adopted the definition Petitioner proposes for one having ordinary skill in the art at the time of the invention of the ’167 patent. Dec. on Inst. 6. Namely, we found that one of ordinary skill in the art would have had “a Ph.D. in electrical engineering, physics, materials science, or a related field, and at least one year of experience in the research, design, and/or development of magnetic/spintronic devices, or the equivalent,” or “a Master’s degree in electrical engineering, physics, materials science, or a related field, and four years of experience in the research, design, and/or development of magnetic/spintronic devices, or the equivalent.” Id. (citing Pet. 20 (citing Ex. 1024 ¶ 25)). We also found that “[l]ess work experience may be compensated by a higher level of relevant education, and vice versa.” Id. Patent Owner does not address Petitioner’s definition, nor provide its own. See generally PO Resp. Because Petitioner’s definition of the level of skill in the art is consistent with the ’167 patent and the asserted prior art, we maintain it for purposes of this Final Written Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC, 57 F.3d at 1579; In re Oelrich, 579 F.2d 86, 91 (CCPA 1978).” slip op. at 7

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

      “Here, neither party sets forth any term for claim construction. Pet. 17; see generally PO Resp. Thus, for purposes of this Decision, we afford the claim terms their plain and ordinary meaning. See, e.g., Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[W]e need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy.’”)).” slip op. at 8

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

      “In addition, we agree with Petitioner and find that one of ordinary skill in the art “would have been motivated to replace either or both of Bowen’s electrodes with CoFeB to increase TMR and lower Hf [(coupling field)] and Hc [(coercivity)].” Pet. 24, 27; Ex. 1055,30 2270 (“[I]t is natural to replace both the free and pinned layers to CoFeB to further increase the TMR value.”); Ex. 105631 ¶¶ 67–68 (“[B]oth the ferromagnetic layers 5, 7 are made of an FeCoB”32 for “improvement of the TMR ratio.”); Ex. 1024 ¶¶ 129, 132. We credit Dr. Bokor’s cited testimony as it is consistent with the cited evidence. Moreover, as Petitioner explains, “[r]esearchers were . . . interested in optimizing MTJs to improve MRAM performance,” and “[h]igher TMRs long promised improved performance for MRAM.” Pet. 6 30 Dexin Wang et al., 70% TMR at room temperature for SDT sandwich junctions with CoFeB as free and reference layers, 40 IEEE Trans. Magn. 2269–71 (July 2004). 31 US 2004/0136232 A1, published July 15, 2004, to Hosomi. 32 We find persuasive Dr. Bokor’s testimony that “a skilled artisan [would have] understood that CoFeB and FeCoB refer to the same alloy.” Ex. 1024 ¶ 121. 36–44) (emphasis omitted). In addition, we agree with Petitioner that one of ordinary skill in the art “would have found it obvious to use Parkin’s CoFeB layer in place of Bowen’s electrodes to increase TMR” in light of Parkin’s explicit teachings. Pet. 27; Ex. 1024 ¶ 133. In particular, Parkin explicitly teaches that “very high TMR values are unexpectedly found for MTJs with highly textured (100) MgO tunnel barriers but with nominally amorphous storage layers.” Ex. 1062, 18:49–51. Notably, Parkin provides that “[t]he TMR of the device of F[igure] 3A is nearly two times higher than the highest TMR ever reported in prior art devices using conventional alumina tunnel barriers.” Id. at 18:63–65; Pet. 27. And as we discuss above, Parkin teaches that Figure 3A’s MTJ may be inverted, such that the storage layer is formed beneath the tunnel barrier. Ex. 1062, 17:7–10. In addition, we agree that one of ordinary skill in the art would have had a reasonable expectation of success in modifying Bowen in the manner Petitioner proposes, as forming electrodes with CoFeB alloys was known. Pet. 28. As Petitioner argues, “forming electrodes with CoFeB alloys in MTJs was known and had been successfully done,” and thus we are persuaded that “one of skill would have found it to be a straightforward, predictable, and desirable improvement to TMR, Hf, and Hc in Bowen’s” slip op. at 21

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

      “We find unavailing Patent Owner’s arguments that Bowen teaches a “radically different manufacturing process[] from the claimed invention,” and that Bowen “went to heroic lengths to provide a crystalline (001) bottom electrode that provides a template for epitaxially growing a crystalline MgO(001) layer.” PO Resp. 2 (emphasis omitted). Patent Owner describes in detail Bowen’s specific manufacturing process, including the specific structure of the MTJ manufactured, and argues the claimed invention differs. PO Resp. 30–33. These arguments are inapposite. Petitioner cites the specific teachings Petitioner relies on from Bowen, rather than adopting the entirety of Bowen’s process or MTJ. See, e.g., Pet. 21–36 (citing the portions of Bowen—that in combination with Parkin—teach claim 1). Petitioner is not “compelled to adopt every single aspect of [Bowen’s] teaching without the exercise of independent judgment.” Lear Siegler, Inc. v. Aeroquip Corp., 733 F.2d 881, 889 (Fed. Cir. 1984). We also find unavailing Patent Owner’s argument that Bowen and Parkin each teach away from Petitioner’s combination because Parkin used boron to avoid crystalline electrodes whereas Bowen tried to achieve perfect crystalline electrodes. PO Resp. 4. As we discuss above, one of ordinary skill in the art would have been motivated to replace Bowen’s electrodes with CoFeB to increase TMR. And Patent Owner does not identify in either reference a specific teaching that criticizes, discredits, or otherwise 35 M. Jimbo et al., Thermal stability of spin valves using amorphous CoFeB, 165 J. Magnetism & Magnetic Materials 308–11 (1997) (“Jimbo”). combination. In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004).” slip op. at 23

    Patent outcomesUS 10,680,167 mixed
    Claim construction§ 103 obviousnesscites Phillips · Graham
    Patents in suitUS 10,680,167
  • PTAB · Mar 27, 2026 · IPR2024-01447 · APJ Sheila F Mcshane · IPR · Final written decision

    Claims 1–2 are unpatentable as obvious over each Bowen-based combination; claims 3–4 were not shown unpatentable, and the Nagahama-based grounds failed for all claims.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “In determining the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are 5 Nagahama, EP 1391942 A1, published February 25, 2004 (Ex. 1027, “Nagahama”). made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citation omitted). The level of ordinary skill in the art is also reflected by the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). Consistent with the Institution Decision (Dec. 7), we adopt the assessment offered by Petitioner as it is consistent with the ’134 patent and the asserted prior art. Patent Owner does not dispute that Dr. Bokor is qualified as a person of ordinary skill in the art in accordance with the assessment adopted. See Tr. 90:9–15. Patent Owner, however, questions Dr. Bokor’s knowledge on the formation of crystalline materials and seeks to exclude his related testimony. See PO Resp. 1–2, 27; PO Mot. Excl. 12–15. We address this issue infra Section V.” slip op. at 7

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

      “Petitioner “submits the claim terms should be given their plain and ordinary meaning and no claim construction is necessary to find the claims unpatentable.” Pet. 24. Patent Owner does not raise any claim construction issues in its Response. See generally PO Resp. We determine that we need not expressly construe any claim terms to resolve the parties’ disputes. 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 9

    • Strike new argumentNew argument consideredDenied

      “A reply may only respond to arguments raised” in the patent owner response. 37 C.F.R § 42.23(b). The Consolidated Trial Practice Guide states that responding “does not mean proceed[ing] in a new direction with a new approach,” and “[w]hile replies . . . can help crystalize issues for decision, a reply . . . that raises a new issue or belatedly presents evidence may not be considered,” that is, “Petitioner may not submit new evidence or argument in reply that it could have presented earlier, e.g. to make out a prima facie case of unpatentability.” Consolidated Trial Practice Guide § II.I (last updated Dec. 12, 2025) (“CTPG”), available at https://www.uspto.gov/patents/ptab/trial-practice-guide. We are not persuaded by Patent Owner’s assertions that Petitioner’s reply arguments on Parkin should not be considered. As discussed supra Section II.D.3.i above, the Petition includes the assertion that if Parkin’s CoFeB electrodes were used to modify Bowen, the MgO polycrystalline or single-crystal layer would still have the same 001 orientation. Pet. 33–34 (citing Ex. 1024 ¶ 129; Ex. 1062, 9:58–10:2, 18:49–51; Ex. 1005, 4:30–32). Petitioner’s support in the Petition references disclosures relating to Parkin’s Figure 3A (Ex. 1062, 18:49–51), which discloses a MgO(100) tunnel barrier, and the Petition also notes that the structure of Figure 3A may be inverted. Pet. 40 (citing Ex. 1062, 17:7–10). Patent Owner’s arguments, in large part, are related to Petitioner’s arguments in the Reply relating to Parkin’s Figure 11. Parkin’s Figure 11 is an embodiment where the structure of the devices of Figure 3A is inverted. See Ex. 1062, 22:29–33. We do not find that Petitioner’s arguments that are at issue in the Reply represent a new direction in its approach—the Petition is clearly based on the assertion that if Parkin’s CoFeB electrodes are used in Bowen, the device would have a MgO(001) tunnel barrier layer. Further, the Petition refers to Parkin’s disclosure that the device in Figure 3A may be inverted, which would be encompassed by the Figure 11 embodiment. Moreover, in the Institution Decision, we invited additional briefing on whether Parkin’s storage magnetic electrode was an amorphous ferromagnetic electrode, which relates to Parkin’s Figure 11 (Dec. 28–29). We are also not persuaded by Patent Owner’s argument that the Petition’s assertions do not correspond to what Petitioner argues in the Reply because they were referred to in the section pertaining to limitation 1[e]. The Petition includes a cross-reference in the limitation 1[d] discussion on the tunnel barrier layer limitation: “if Sunai’s or Parkin’s CoFeB electrodes are used as described in Claims 1[e] and 2 in this Ground, one of skill would understand that the MgO . . . would still have the same (001) orientation.” Pet. 33. Further, Petitioner’s arguments in its Reply properly respond to arguments made on contested issues. Patent Owner’s contentions on the merits in its Response are largely based upon the assertion that the modified MTJ of Bowen would not have a MgO(001) layer as claimed. See PO Resp. 4–10, 18–48. Petitioner’s reply arguments on Parkin relate to whether there would be a MgO(001) layer in its structure, so we find that Petitioner’s arguments on Parkin in its Reply (Pet. Reply 2–5) and the related evidence are appropriately responsive. slip op. at 17

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

      “We find that there is sufficient evidence in support of Petitioner’s assertion of the rationale to replace Bowen’s electrodes with CoFeB and anneal them. As discussed supra Section II.D.ii.2, Parkin’s Figure 11 depicts and describes a storage electrode that may be composed of amorphous CoFeB, with the formation of a MgO(001) barrier layer atop it. See Ex. 1062, 22:29–66. Patent Owner argues that Parkin’s benefits are because its CoFeB electrode is amorphous (PO Resp. 51–52), but this is not accurate. In Parkin, the CoFeB amorphous electrode crystallized at the interface layer between the barrier and the electrode. Id. at 19:6–19. Parkin discloses that higher TMRs were attributable to the crystallization of CoFeB. Id. at 18:63–19:22. Parkin also discloses that its completed CoFeB- MgOH(001)-CoFeB device was annealed with resulting high TMRs. Id. at 17:60–18:16. These disclosures provide support that one of skill in the art would have been motivated to replace Bowen’s electrodes with CoFeB and anneal to crystallize them because of the known improvements of TMR. Additionally, Parkin’s disclosures support that the results of the combination would have been predictable. That is, Parkin actually discloses an amorphous CoFeB electrode, formation of a MgO(001) tunnel barrier on the amorphous electrode, and annealing the assembly, with a resulting high TMR. Accordingly, Petitioner has provided reasoning with rationale underpinning for the motivation to combine. See KSR, 550 U.S. at 415 (“[t]he combination of familiar elements according to known methods is likely to be obvious when it does no more than yield predictable results”).” slip op. at 31

    Patent outcomesUS 8,405,134 mixed
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,405,134
  • PTAB · Mar 5, 2026 · IPR2024-01336 · APJ Russell E Cass · IPR · Final written decision

    Claims 1–4, 6–9, 24, and 25 are unpatentable; claims 10, 13, 14, 17, and 21–23 were not shown unpatentable, principally due to missing limitations or insufficient motivation to combine.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

      “information” should be given its plain and ordinary meaning as “data,” and that Patent Owner’s narrower construction of “first information” and “second information” lacks sufficient support in the intrinsic record. We agree with Petitioner that the ’802 patent Specification defines “information” as data when it uses the phrase “information (i.e., data).” See Ex. 1001, 5:60–62 (“Information (i.e., data) to be transmitted may be received in a baseband digital system 250, such as a wireless digital baseband processor.” (emphasis added)), 11:30–32 (“In this example, the signals 911 and 912 carry the same information (data).” (emphasis added)). As the Federal Circuit has explained, a “specification’s use of ‘i.e.’ signals an intent to define the word to which it refers.” Edwards Lifesciences LLC v. Cook Inc., 582 F.3d 1322, 1334 (Fed. Cir. 2009). slip op. at 13

    • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableNot shown unpatentableMixed

      “argument based on Fernandez alone, we find that Petitioner has not provided a sufficient evidentiary basis to support a motivation to remove the amplification from each of Fernandez’s signal generators 10A-10E and add a single power amplifier instead. See Pet. 76–77 Ex. 1003 ¶ 235. Petitioner’s only rationale for this modification to Fernandez is that “[a] single amplifier has several advantages compared to multiple amplifiers, including lower complexity, a single (vs. multiple) potential point of failure, and lower cost,” and that one of ordinary skill “would have found a single amplifier to be a simple matter of design preference.” Pet. 76–77. Dr. Almeroth simply repeats these cursory allegations without providing any further explanation or evidentiary support. Ex. 1003 ¶ 235. Moreover, Dr. Cooklev provides credible testimony that replacing Fernandez’s amplification in signal generators 10A–10E with a single amplifier would not necessarily have the advantages that Petitioner suggests. See Ex. 2013 ¶¶ 99, 104–105. For example, Dr. Cooklev testifies that a single amplifier would need to have a wider bandwidth than the multiple amplifiers used in Fernandez, which could cause potential stability issues. Id. ¶ 105. According to Dr. Cooklev, this wider bandwidth would require more circuit elements, and thus would not provide the reduction in space usage and power consumption that Petitioner asserts. Id. According to Dr. Cooklev, Montojo also points to several “substantial, and potentially impractical, drawbacks” of using a single amplifier for multiple signal generators, including power constraints imposed by spectral emission requirements and on-board battery capacity. Id. ¶ 104 (citing Ex. 1006 ¶¶ 7– 8). In light of this testimony, which we find credible, Petitioner has failed to provide sufficient explanation or evidence to support its assertion that one of ordinary skill would have found it obvious to replace the multiple amplifiers in Fernandez’s signal generators with a single amplifier.” slip op. at 65

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

      “argument based on Fernandez alone, we find that Petitioner has not provided a sufficient evidentiary basis to support a motivation to remove the amplification from each of Fernandez’s signal generators 10A-10E and add a single power amplifier instead. See Pet. 76–77 Ex. 1003 ¶ 235. Petitioner’s only rationale for this modification to Fernandez is that “[a] single amplifier has several advantages compared to multiple amplifiers, including lower complexity, a single (vs. multiple) potential point of failure, and lower cost,” and that one of ordinary skill “would have found a single amplifier to be a simple matter of design preference.” Pet. 76–77. Dr. Almeroth simply repeats these cursory allegations without providing any further explanation or evidentiary support. Ex. 1003 ¶ 235. Moreover, Dr. Cooklev provides credible testimony that replacing Fernandez’s amplification in signal generators 10A–10E with a single amplifier would not necessarily have the advantages that Petitioner suggests. See Ex. 2013 ¶¶ 99, 104–105. For example, Dr. Cooklev testifies that a single amplifier would need to have a wider bandwidth than the multiple amplifiers used in Fernandez, which could cause potential stability issues. Id. ¶ 105. According to Dr. Cooklev, this wider bandwidth would require more circuit elements, and thus would not provide the reduction in space usage and power consumption that Petitioner asserts. Id. According to Dr. Cooklev, Montojo also points to several “substantial, and potentially impractical, drawbacks” of using a single amplifier for multiple signal generators, including power constraints imposed by spectral emission requirements and on-board battery capacity. Id. ¶ 104 (citing Ex. 1006 ¶¶ 7– 8). In light of this testimony, which we find credible, Petitioner has failed to provide sufficient explanation or evidence to support its assertion that one of ordinary skill would have found it obvious to replace the multiple amplifiers in Fernandez’s signal generators with a single amplifier.” slip op. at 65

    • Expert testimonyPatent owner expert creditedPetitioner expert discountedOther

      “We find credible and agree with Dr. Cooklev’s testimony that the predistortion signals from tables 17-1 and 17-2 “are cancelled out by Suzuki’s amplifier” 28. Ex. 2013 ¶ 50. Dr. Cooklev supports his opinion by referring to paragraph 1 of Suzuki, which states that Suzuki’s invention is directed to “a multi-band lookup table type predistorter” (such as the one implemented using lookup tables 17-1 and 17-2 in Figure 6) that “compensates for a distortion of a power amplifier.” Ex. 2013 ¶ 54; Ex. 1004 ¶ 1. Dr. Cooklev’s opinion is also supported by paragraph 3 of Suzuki, which explains that a conventional digital predistorter uses a lookup table “for linearizing non-linear characteristics of an amplifier.” Ex. 1004 ¶ 3; Ex. 2013 ¶ 54. Dr. Cooklev further supports his opinion by relying on Suzuki’s disclosure in paragraph 46 that power amplifier 28 is “subject to distortion compensation” by the predistorter, and that distortion components in the signal output by the amplifier are canceled by “distortion compensation data [that] are read out from the lookup tables 17-1 and 17-2 and provided to the adders 13-1 and 13-2, respectively.” Ex. 1004 ¶ 46; Ex. 2013 ¶ 54. And, Dr. Cooklev’s opinion is supported by Suzuki’s disclosure in paragraph 47 that the distortion compensation added by adders 13-1 and 13-2 add the distortion compensation data from lookup tables 17-1 and 17-2 “to perform distortion compensation (addition of predistortion)” to “signals to be transmitted.” Ex. 1004 ¶ 47; Ex. 2013 ¶ 54. Petitioner agrees that the distortion compensation data from lookup tables 17-1 and 17-2 “are added to the respective frequency band from” input signal ST “in order to predistort the output signal, which is then transmitted,” and does not dispute that the distortion compensation data from lookup tables 17-1 and 17-2 is ultimately cancelled out by the distortion created by amplifier 28. Pet. Reply 8. In light of the above evidence, we agree with Patent Owner that Suzuki’s distortion components from lookup tables 17-1 and 17-2 in Figure 6 (which Petitioner relies on for the first and second digital signals in limitations 10a and 10b) are cancelled out by the distortion created by power amplifier 28 before the signal is ultimately transmitted. We agree with Petitioner that these first and second digital signals include data in the form of distortion compensation data. However, because these signals are cancelled by the distortion from amplifier 28 before transmission, the data from these signals is never transmitted. Thus, the first and second digital signals identified by Petitioner (the distortion compensation data from lookup tables 17-1 and 17-2) do not comprise data “to be transmitted,” as limitations 10a and 10b require.” slip op. at 35

    Patent outcomesUS 7,924,802 mixed
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 7,924,802
  • PTAB · Feb 24, 2026 · IPR2024-01203 · APJ Avelyn M Ross · IPR · Final written decision

    Claims 1–11 are unpatentable as obvious; claim 12 was not shown unpatentable because the evidence did not establish that Froitzheim’s silver contact was formed over silicon dioxide.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner contends that a person of ordinary skill in the art would have had (i) an advanced degree in electrical engineering, mechanical engineering, applied physics, chemistry, materials science, or a related discipline and (ii) at least one year of experience 7 Neither Petitioner nor Patent Owner raises issues of objective indicia of nonobviousness. designing, developing, or researching the design and/or manufacture of solar cells or related technologies. Alternatively, a POSITA [i.e., a person of ordinary skill in the art] would have had (i) a bachelor’s degree in the aforementioned disciplines and (ii) at least two years of experience designing, developing, or researching the design and/or manufacture of solar cells or related technologies. Less work experience may be compensated by a higher level of education, and vice versa.” slip op. at 8

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

      “C. Claim Construction We construe claim terms according to the standard set forth in Phillips v. AWH Corp., 415 F.3d 1303, 1312–17 (Fed. Cir. 2005) (en banc); 37 C.F.R. § 42.100(b). Under Phillips, we give claim terms “their ordinary and customary meaning.” Phillips, 415 F.3d at 1312. “[T]he ordinary and customary meaning of a claim term is the meaning that the term would have to a person of ordinary skill in the art in question at the time of the invention.” Id. at 1313. “Importantly, the person of ordinary skill in the art is deemed to read the claim term not only in the context of the particular claim in which the disputed term appears, but in the context of the entire patent, including the specification.” Id.” slip op. at 9

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

      “We are persuaded that Petitioner has shown a reasonable expectation of success in the combination of Froitzheim and Gan. Petitioner explains that the combination of Froitzheim and Gan simply replaces one emitter, i.e., Froitzheim’s diffused emitter, with the polysilicon emitter of Gan. Pet. 36. According to Petitioner, a person of ordinary skill in the art would have also readily understood how to replace a diffused emitter with a polysilicon emitter and oxide layer [and] would have understood that instead of diffusing boron into the substrate’s back side as taught by Froitzheim, a [person of ordinary skill in the art] would instead follow the manufacturing technique taught by Gan. Pet. 37 (citing Ex. 1005, 246). Petitioner explains that the Gan processes are well-known and routine, and Dr. Holman states that “modifying Froitzheim in view of Gan simply involves using Gan’s known technique of a polysilicon emitter and oxide layer with Froitzheim’s known solar cell to improve Froitzheim’s solar cell in a similar way.” Pet. 37 (citing Ex. 1003 ¶ 144). For example, Petitioner directs our attention to “multiple instances” in which oxide layers and polysilicon emitters have been implemented successfully in the art. Pet. 37 (citing Ex. 1005, 246; Ex. 1006 ¶ 22; Ex. 1046, Abstr., 1121; Ex. 1003 ¶ 145). Furthermore, Gan’s statement that “cell performance can be improved if the diffused-emitter is replaced with the polysilicon emitter” and “polysilicon emitters with low J0 and ρc can be obtained with a very small fraction of interfacial oxide breakup” indicate a reasonable expectation of success. Ex. 1005, 245, 249. Gan also states that “polysilicon emitters with these qualities can be quite useful for silicon concentrator solar cells.” Ex. 1005, 249. Thus, we are persuaded that Petitioner has demonstrated that a person of ordinary skill in the art would have had a reasonable expectation of success in combining Froitzheim and Gan.” slip op. at 17

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

      “We are not persuaded the record evidence rises to the level of a teaching away. “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.” In re Gurley, 27 F.3d 551, 553 (Fed. Cir. 1994). And “teaching away” requires more than the mere expression of a general preference.” Galderma Labs., L.P., v. Tolmar, Inc., 737 F.3d 731, 738 (Fed. Cir. 2013). Notably, our reviewing court has determined that a reference can distinguish prior art in order to show the novelty of an invention without teaching away from combining the prior art with the invention disclosed in the reference. See Ricoh Co. v. Quanta Computer Inc., 550 F.3d 1325, 1332 (Fed. Cir. 2008). Here, Li prefers a “heterogeneous PN junction” and states that “a PN junction is prepared by a low-temperature deposition method, which avoids a conventional diffusion process at 800–1000°C. Such high-temperature process will cause more defects or contamination in silicon material, which will affect the improvement of cell efficiency.” Ex. 1008, 4. But, Li’s preference for lower temperature diffusion processes does not amount to a teaching away from the broader disclosure. In fact, Li acknowledges that “[t]he silicon thin film can be prepared by any deposition method,” including conventional processes at higher temperatures. Ex. 1008, 4 (emphasis added). And, while Patent Owner asserts that “[d]eposition methods are not relevant to the parties’ dispute, which is over deposition temperature” (Sur-reply 17), the deposition method employed includes its deposition temperature. See Ex. 1008, 4 (Li describing “conventional” diffusion processes at temperatures of 800–1000° C). Thus, just because Li teaches one way of depositing its silicon thin film using a low-temperature deposition method does not mean that Li teaches away from high-temperature processes. Li’s teachings do not discredit or discourage high-temperature processes in a manner that may be said to teach away.” slip op. at 51

    Patent outcomesUS 8,222,516 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,222,516
  • PTAB · Feb 19, 2026 · IPR2024-01287 · APJ Russell E Cass · IPR · Final written decision

    Claim 5 is unpatentable over Bernstein alone or with Tsuge; claims 1–3 and 6–11 were not shown unpatentable because the asserted grounds fail to teach required limitations.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner asserts that an ordinarily skilled artisan at the time of the alleged invention “would have at least a bachelor’s degree in electrical engineering, computer science or comparable degree or 2–3 years industry experience designing and/or maintaining back-end networking equipment.” Pet. 11. In the Preliminary Response, Patent Owner stated that it “does not contest Petitioner’s recitation of the level of skill in the art, because even under Petitioner’s proposed level of skill,” Petitioner “has failed to demonstrate a reasonable likelihood of success.” Prelim. Resp. 17. In the Institution Decision, we adopted Petitioner’s proposed definition of a person of ordinary skill in the art, finding that it was consistent with the ’982 patent and the asserted prior art. Inst. Dec. 14 (citing Okajima, 261 F.3d at 1355).” slip op. at 14

    • Claim Construction › Intrinsic evidence (Phillips canons) › Preamble limiting or notPreamble limitingDecided for patent owner

      “Following the Institution Decision, both parties submitted proposed claim constructions in the district court stating that the preamble is limiting. Ex. 2009, 3–4 (Petitioner’s Preliminary Claim Construction Chart); Ex. 2010, 7 (Patent Owner’s Preliminary Claim Construction Chart). Patent Owner states in the Patent Owner Response that “[t]he parties now agree that the entire preambles of both claims 1 and 6 are limiting.” PO Resp. 17. In its Reply, Petitioner states that “whether the Board finds the phrase ‘service auto-configuration’” in the preamble to be limiting is “immaterial” because it “does not affect the analysis of whether the prior art cited in the petition invalidates [the challenged] claims.” Pet. Reply 5. At the oral hearing, Petitioner acknowledged that it does not dispute that the entire preamble of claims 1 and 6 is limiting. Tr. 20:25–21:17, 23:15–17. Because the parties agreed in district court that the entire preamble of claims 1 and 6 is limiting, and also agree in this proceeding, we find that the preambles of claims 1 and 6 are limiting for purposes of this Decision. We will discuss the meaning of the preamble further in the sections below applying the prior art to the claims. See §§ III.A..4(a), III.A.7, III.C.1(a), III.C.7, infra.” slip op. at 15

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner

      “Based on the record before us, and for purposes of this Decision, we do not need to, and do not, construe any other claim terms to resolve the controversy before us. 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., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 16

    • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableNot shown unpatentableMixed

      “Based on the full trial record, we find that Petitioner has failed to meet its burden to show that Bernstein recites a “service auto-configuration” method as recited in the preamble of claim 1. As discussed above, the parties agree that the preamble of claim 1, including the “service auto-configuration method” language, is limiting. See § II.B, supra. As we explained in the Institution Decision, the Petition does not set forth a construction of “service auto-configuration method” or explain how the prior art discloses a “service auto-configuration method.” Pet. 11, 24; Inst. Dec. 32. Instead, the Petition merely explains how Bernstein teaches “a DOCSIS Provisioning of EPON (DPoE) system,” without explaining how it teaches a “service auto-configuration method.” Pet. 24 (citing Ex. 1005 ¶ 59). By failing to offer a construction of “service auto-configuration method” or explain how this limitation is met by the prior art, the Petition fails to show by a preponderance of the evidence that the prior art discloses or suggests this limitation.” slip op. at 34

    Patent outcomesUS 9,287,982 mixed
    Claim construction§ 103 obviousness
    Patents in suitUS 9,287,982

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.