• Activision Blizzard, Inc. v. Milestone Entertainment, LLCNo claims unpatentable
  PTAB · Oct 14, 2026 · IPR2025-00712 · APJ Kevin W Cherry · IPR · Final written decision

  Claims 1, 3–9, 13, 17, 18, 23, 25, 26, 28, and 29 were not shown unpatentable because Walker was not prior art and Kelly did not teach limitations 1[d.i] and 1[d.ii].

  RulingsFinal written decision

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportReference not prior artPriority date awardedDecided for patent owner

    “b) Walker Priority Date Under Dynamic Drinkware, the Petitioner is required to show that “the provisional application provides support for the claims of the patent or published application.” In re Riggs, 131 F.4th 1377, 1384 (Fed. Cir. 2025). Thus, Petitioner must show that (1) at least one claim of Walker is supported by its provisional (U.S. Provisional Application No. 60/378,289 (the “’289PROV”) and (2) the specific subject matter relied upon as prior art is supported by the ’289PROV. Id. Petitioner does provide a detailed explanation about how the ’289PROV supports claim 1 of Walker. See Reply 5–10. However, as Patent Owner argues, Petitioner fails to show that the ’298PROV provides support for the specific subject matter relied on in Walker. See Sur-Reply 3–9. Petitioner only explains how the ’298PROV discloses “predetermined criteria” but does not provide any other explanation for how the other subject matter relied on in Walker is supported by the ’298PROV. Thus, we find that Petitioner has failed to show that Walker is entitled a priority date before May 1, 2003. See Riggs, 131 F.3d at 1384 (noting while “a prior art patent or published application cannot be accorded the benefit of its provisional application’s filing date absent a showing that the provisional application provides support for the claims of the patent or published application,” the challenger must also show that “the specific portions of the patent specification identified and relied on” to demonstrate purported invalidity have written description support).” slip op. at 25

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

    “evidence that Kelly teaches limitations 1[d.i] and 1[d.ii]. As Patent Owner persuasively argues, “the recorded information regarding particular game play events” of limitations 1[d.i] and 1[d.ii] refers to “memory to . . . record game play information regarding particular game play events” in limitation 1[b.ii], but Petitioner does not map “the game play events” identified in limitation 1[b.ii] to limitations 1[d.i] and 1[d.ii]. In its Reply, Petitioner does not dispute Patent Owner’s assertion, but largely reiterates its arguments from the Petition. However, none of these arguments or evidence demonstrates that the “game play events” in limitations 1[d.i] and 1[d.ii] are same the “game play events” that are allegedly stored in limitation 1[b.ii]. Even if we accept Petitioner’s contention that it was not identifying button presses or the “game identifier,” but rather includes “game states and game events in the game process,” Petitioner provides no evidence or even arguments that what it has identified here relates to what it has identified for limitations 1[d.i] and 1[d.ii]. See Pet. 29–33 (citing Ex. 1005, 25:23–24, 26:59–27:1, 32:27–33, 37:1–10, 38:66–39:7 40:33–45, 56:49–51, 57:27–33). For these reasons, Petitioner has failed to show by a preponderance of the evidence that Kelly teaches or suggests limitations 1[d.i] and 1[d.ii]. Accordingly, we find that Petitioner has failed to show that claim 1 would have been obvious over Kelly. 2. Claims 3–9, 13, 17, 18, 23, 25, 26, 28, and 29 Claims 3–9, 13, 17, 18, 23, 25, 26, 28, and 29 all depend (either directly or indirectly) from claim 1. See PO Resp. 16 (explaining that the arguments for independent claim 1 also apply to the dependent claims inherent the deficiencies asserted with respect to the independent claims). We find Patent Owner’s arguments availing, as explained above. Accordingly, we find that Petitioner has failed to show by a preponderance of the evidence that claims 3–9, 13, 17, 18, 23, 25, 26, 28, and 29 would have been obvious over Kelly.” slip op. at 44

  • Expert testimonyPetitioner expert creditedDecided for patent owner

    “programmable variable parameter sets to achieve the mandated parameters,” we find that Patent Owner sufficiently explained “the notes from the 12/4/02 meeting reflect that the inventors proposed that their invention could raise the global payout percentage ‘to 75%’ – a mandated parameter – by ‘increas[ing] % of wins by the level 2,’ i.e., a secondary game level – a variable parameter.” See PO Resp. 28–32, 37, 38; Ex. 2016; Ex. 2017 ¶¶ 23–24, 41–42; Ex. 2012 ¶ 90, 63–64. Indeed, Mr. Crevelt confirmed that that a POSITA would unequivocally regard disclosure of “win rate[s]” and “global payout percentage[s]” as disclosing the claimed “mandated parameters” that are achieved by utilizing variable parameters. See Ex. 2020, 15:7–18:4, 19:14–21:16, 24:25–25:15 (global payout percentages), 21:18– 24:24 (win rates).” slip op. at 33

  Patent outcomesUS 11,393,279 not shown unpatentable
  § 102 anticipation§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 11,393,279
• Activision Blizzard, Inc. v. Milestone Entertainment, LLCNo claims unpatentable
  PTAB · Oct 14, 2026 · IPR2025-00708 · APJ Kevin W Cherry · IPR · Final written decision

  Claims 1, 3–5, 12, 13, 18–20, 22, 24–26, 29, 42, 44–47, and 50 were not shown unpatentable over Kelly or Walker and Schneier.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “understanding of a person of ordinary skill in the art (“POSITA”). In assessing 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 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) (quoting Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d 955, 962 (Fed. Cir. 1986)). “[O]ne or more factors may predominate.” Id. Based on the testimony of Mr. Crevelt, we determine that a person of ordinary skill in the art would have had at least a bachelor’s degree in computer science or computer engineering, with at least three years of experience in game development. Pet. 14 (citing Ex. 1003 ¶¶ 62–65). Additional experience could substitute for less education, and additional education could likewise substitute for less experience. Id. We determine that the level of ordinary skill in the art adopted above is consistent with the level of technical understanding and competence reflected in the ’336 patent Specification and the asserted prior art references, based on our review of the record. Patent Owner states that “[f]or the purposes of this response, Patent Owner does not dispute Petitioners’ proposed level of skill, and under any level of skill a POSITA would not understand the asserted Grounds to raise any unpatentability issue,” and “this POR and supporting declarations apply Petitioner’s proposed level of skill.” PO Resp. 8. Thus, we adopt Petitioner’s articulation of the level of ordinary skill in the art, which is consistent with the ’336 patent and the asserted prior art, and we apply it in our obviousness analysis below.” slip op. at 11

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

    “The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). We determine that no terms require express construction to resolve the parties’ disputes in this case. See id. slip op. at 13

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportPriority date awardedDecided for patent owner

    “b) Walker Priority Date Under Dynamic Drinkware, the Petitioner is required to show that “the provisional application provides support for the claims of the patent or published application.” In re Riggs, 131 F.4th 1377, 1384 (Fed. Cir. 2025). Thus, Petitioner must show that (1) at least one claim of Walker is supported by its provisional (U.S. Provisional Application No. 60/378,289 (the “’289PROV”) and (2) the specific subject matter relied upon as prior art is supported by the ’289PROV. Id. Petitioner does provide a detailed explanation about how the ’289PROV supports claim 1 of Walker. See Reply 6–12. However, as Patent Owner argues, Petitioner fails to show that the ’298PROV provides support for the specific subject matter relied on in Walker. See Sur-Reply 3–8. Petitioner only explains how the ’298PROV discloses “predetermined criteria” but does not provide any other explanation for how the other subject matter relied on in Walker is supported by the ’298PROV. Thus, we find that Petitioner has failed to show that Walker is entitled a priority date before May 1, 2003. See Riggs, 131 F.3d at 1384 (noting while “a prior art patent or published application cannot be accorded the benefit of its provisional application’s filing date absent a showing that the provisional application provides support for the claims of the patent or published application,” the challenger must also show that “the specific portions of the patent specification identified and relied on” to demonstrate purported invalidity have written description support).” slip op. at 24

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

    “We find that Petitioner has failed to show by a preponderance of the evidence that Kelly teaches limitation 1[f]. As Patent Owner persuasively argues, “the game play events” of limitation 1[f] refers to “game play events” in limitation 1[d], but Petitioner does not map “the game play events” identified in limitation 1[d] to limitation 1[f]. In its Reply, Petitioner does not dispute Patent Owner’s assertion, but merely reiterates its arguments from the Petition. See Reply 23–24, 26. However, none of these arguments or evidence demonstrates that the “game play events” in limitation 1[f] are same the “game play events” that are allegedly stored in limitation 1[d]. Even if we accept Petitioner’s contention that it was not identifying button presses, but rather includes “game states and game events in the game process,” Petitioner provides no evidence or even arguments that what it has identified here relates to what it has identified for limitation 1[f]. See Pet. 25–26 (citing Ex. 1005, 25:23–24, 32:27–33, 40:33–45, 56:49–51). For these reasons, Petitioner has failed to show by a preponderance of the evidence that Kelly teaches or suggests limitation 1[f]. Accordingly, we find that Petitioner has failed to show that claim 1 would have been obvious over Kelly. 2. Claims 3–5, 12, 13, 18–20, 22, 24–26, 29, 42, 44–47, and 50 Claims 3–5, 12, 13, 18–20, 22, 24–26, 29, 42, 44–47, and 50 all depend from claim 1. See PO Resp. 16 (explaining that the arguments for independent claim 1 also apply to the dependent claims inherent the deficiencies asserted with respect to the independent claims). We find Patent Owner’s arguments availing, as explained above. Accordingly, we find that Petitioner has failed to show by a preponderance of the evidence that claims 3–5, 12, 13, 18–20, 22, 24–26, 29, 42, 44–47, and 50 would have been obvious over Kelly.” slip op. at 40

  Patent outcomesUS 8,529,336 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 8,529,336
• Google LLC v. Sandpiper CDN, LLCAll claims unpatentable
  PTAB · Oct 9, 2026 · IPR2025-00826 · APJ Michael T Cygan · IPR · Final written decision

  Claims 1–23 are unpatentable under § 103, including over Glines alone and the additional asserted combinations.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner asserts that a person of ordinary skill in the art (“POSITA”) at the critical time “would have had at least a bachelor’s degree in computer science, electrical engineering, or a related field, and at least two years of work or research experience in the field of content delivery management or networks,” and that “additional education could substitute for work experience.” Pet. 3 (citing Ex. 1008 ¶¶ 51–53). Patent Owner provides substantially the same assessment. PO Resp. 16. We adopt Petitioner’s proposed level of ordinary skill, as it appears to be consistent with the specification of the ’112 patent and the prior art of record.” slip op. at 7

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

    “claim construction standard that would be used to construe the claim in a civil action under 35 U.S.C. [§] 282(b).” 37 C.F.R. § 42.100(b). Under this standard, the words of a claim generally are given their “ordinary and customary meaning,” which is the meaning the term would have to a person of ordinary skill at the time of the invention, in the context of the entire patent including the specification. Phillips v. AWH Corp., 415 F.3d 1303, 1312–13 (Fed. Cir. 2005) (en banc). Neither party proposes any express claim construction. Pet. 3; PO Resp. 16. We address the parties’ interpretation of the scope of “causing said hostname to be resolved” in our discussion of Petitioner’s assertions for limitation [1.d]. Based on the record before us, we determine that no claim term requires express construction.” slip op. at 8

  • Expert testimonyPetitioner expert creditedDecided for petitioner
  • Strike new argumentNew argument consideredDecided for petitioner

    “We do not agree. The Petition states that Glines discloses that the anycast is resolved by an ISP DNS server. Pet. 20. The Petition identifies Glines’s local ISP DNS resolver 18 as the claimed ISP DNS server. Id. The Petitioner further asserts that Glines’s ISP DNS resolver 18 sends the request to the DNS server 38, but states that “Glines’s local DNS resolver, an ISP DNS server, thus causes the hostname . . . to be resolved.” Id. at 21–22. The Petition also drew an analogy with the ’112 patent and the role of local DNS server 70a in the Petition. See Pet. 20–21. Because the Petition and the Reply both identify Glines’s local ISP DNS resolver 18 as causing the hostname to be resolved, Petitioner has not advanced a new theory of unpatentability in its Reply. 6 At oral argument, Patent Owner suggested a narrower claim reading, but admitted that this had not been briefed. Tr. 36:15–38:9, 44:9–16. We do not address this reading because it was not set forth in the briefing. In the briefing, Patent Owner took the broader reading discussed here. See Tr. 41:12–23; PO Sur-reply 7.” slip op. at 13

  Patent outcomesUS 9,021,112 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,021,112
• Rocket Media, LLC D/B/A Launch Labs v. Fullthrottle Technologies, LLCAll claims unpatentable
  PTAB · Jun 9, 2026 · IPR2025-00148 · APJ Kevin W Cherry · IPR · Final written decision

  Claims 1–20 are unpatentable as obvious over Doughty and Van Boucq, and over Doughty, Van Boucq, and Maginnis.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art in June 2021 would have had “(1) at least a bachelor’s degree in computer science, computer engineering, electrical engineering, or an equivalent field plus at least one year of experience working on computer networking, or (2) at least 3 years of experience working on computer networking, even without a formal degree.” Pet. 14 (citing Ex. 1007 ¶¶ 44–47). Patent Owner does not contest Petitioner’s proffered definition. PO Resp. 23. Petitioner’s proposed definition appears to be consistent with the disclosure of the ’947 patent, and we adopt it for purposes of this Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that the prior art itself may “reflect[] an appropriate level” of ordinary skill in the art) (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985)).” slip op. at 10

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

    “The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). We determine that no terms require express construction to resolve the parties’ disputes in this case, but address certain claim construction arguments made by the parties in the analysis below. See id.; Inst. Dec. 11 (determining that “no express claim construction is necessary for any claim terms”); PO Resp. 23 (agreeing that “no express constructions are necessary to resolve this IPR”). slip op. at 11

  • Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageDisclaimer not foundDecided for petitioner

    “We find that Petitioner has shown that the combination of Doughty and Van Boucq accounts for these limitations. We are not persuaded by Patent Owner’s arguments that claim 1 somehow excludes, what Patent Owner calls, the “Unique Identifier/Tracker Embodiment.” See PO Resp. 27, 31. Beginning with the language of the claims, the claims are silent as to where the “location data” recited in limitation 1[c] is stored. See Tr. 21:7– 16 (Patent Owner agreeing that “the stored location data does not actually have a required location at all” in the claim, and need not be stored in a database). Nor does Patent Owner direct us to any claim language that would specifically exclude “location data” stored on the user’s device. See Sur-reply 2–3. “The patentee is free to choose a broad term and expect to obtain the full scope of its plain and ordinary meaning unless the patentee clearly redefines the term (lexicography) or disavows claim scope (claim disavowal).” Aortic Innovations LLC v. Edwards Lifesciences Corp., 159 F.4th 1, 8 (Fed. Cir. 2025) (citing Thorner v. Sony Comput. Ent. Am. LLC, 669 F.3d 1362, 1367 (Fed. Cir. 2012)). Patent Owner directs us to statements in the Specification, stating “[f]or example, the computing device may access a database or other storage location that maintains a mapping of unique identifier to a browser session, a user computing device, and/or location data.” Ex. 1001, 9:52–55; see also id. at 39:26–30 (same), 43:55– 59 (same). But none of those passages amounts to lexicography or disavowal of claim scope. Indeed, when read in their full context, these passages support a broad reading, not a narrow reading, of the claims. The full passage of the Specification states: The computing device may determine, at 406, whether there is a unique identifier that is associated with the user (e.g., the user computing device, the browser, and/or the browser session) stored on the computing device. For example, the script may inform the computing device that there is no unique identifier for the user computing device. The computing device may determine that there is no unique identifier associated with the user computing device when there is no location data stored for the user computing device. For example, the computing device may access a database or other storage location that maintains a mapping of unique identifier to a browser session, a user computing device, and/or location data. Additionally or alternatively, the computing device may determine whether there is a unique identifier for associated with the user based on presence of a location tracker (e.g., cookie) installed in the browser application on the user computing device. Ex. 1001, 9:43–59. The passage above is full of language that indicates that the patentee did not intend to limit the claims to a single embodiment. Indeed, the specific portion of the passage cited by Patent Owner begins with “[f]or example” and further states “[a]dditionally or alternatively, the computing device may determine whether there is a unique identifier for associated with the user based on presence of a location tracker (e.g., cookie) installed in the browser application on the user computing device.” Id. at 9:52–59 (emphasis added). Moreover, the Specification states “[a]dditionally or alternatively, the computing device may determine the location data using the tracker installed in the browser application on the user computing device.” Id. at 10:2–5. The Specification also explains that the tracker may “maintain data related to the user and/or user computing device.” Id. at 12:62–63. Based on these disclosures, we find that the Specification supports a reading where the location data are stored in the user computing” slip op. at 25

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

    “We find persuasive Petitioner’s reasoning that a POSITA would have been motivated to modify Doughty, based on Doughty’s own teachings regarding cookies and similar files, and would have recognized that the techniques of Van Boucq would have offered an efficient and commonly used way to determine whether the user already has been assigned a unique identifier. See Ex. 1007 ¶ 153. Patent Owner’s arguments about the precise contents of Van Boucq’s connection cookie attack Van Boucq individually and ignore the combination and modifications that Petitioner proposes. In the combination, Petitioner proposes incorporating the unique identifier from Doughty into Van Boucq’s connection cookie. See Pet. 26 (citing Ex. 1008, 16:59–17:33; Ex. 1007 ¶ 153). As for Patent Owner’s contention that “[n]othing in the record suggests that Van Boucq’s connection cookie could contain any information about either Doughty’s table 105 Profile ID or Doughty’s hashed email address,” PO Resp. 33, as Dr. Gottesman testifies, “[a] cookie is a small piece of data (text file).” Ex. 2012 ¶ 55. We fail to see why a skilled artisan at the time of the invention would have any difficulty incorporating Doughty’s alphanumeric unique identifier into a text file. See Ex. 1007 ¶¶ 153, 166. Thus, we find that Petitioner has shown a motivation to combine Doughty and Van Boucq for these limitations.” slip op. at 30

  Patent outcomesUS 11,556,947 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,556,947
• Western Digital Technologies, Inc. v. Godo Kaisha IP Bridge 1Some claims unpatentable
  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
• Western Digital Technologies, Inc. v. Godo Kaisha IP Bridge 1No claims unpatentable
  PTAB · Apr 28, 2026 · IPR2024-01494 · APJ Justin T Arbes · IPR · Final written decision

  The Board found claims 5, 6, and 9–20 not shown unpatentable over either Bowen and Soukup or Nagahama and Soukup under § 103.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner argues that at the time of the ’909 patent (2004), a person 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,” where “[l]ess work experience may be compensated by a higher level of relevant education, and vice versa.” Pet. 18–19. In the Decision on Institution, we agreed with and applied Petitioner’s proposed definition. Dec. on Inst. 9. Patent Owner does not propose a different level of ordinary skill in the art in its Response. Both experts utilized Petitioner’s proposed definition. See Ex. 1024 ¶ 25; Ex. 2053 ¶¶ 29–30. Based on the full record developed during trial, including our review of the ’909 patent and the types of problems and solutions described in the ’909 patent and cited prior art, we maintain the previously adopted definition of the level of ordinary skill in the art and apply it for purposes of this Decision.” slip op. at 8

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

    “B. Claim Interpretation We interpret the claims of the challenged patent using the same claim construction standard that would be used to construe the [claims] in a civil action under 35 U.S.C. 282(b), including construing the [claims] in accordance with the ordinary and customary meaning of such [claims] as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent. 37 C.F.R. § 42.100(b). Petitioner argues that “the claim terms should be given their plain and ordinary meaning and no claim construction is necessary.” Pet. 15. We did not interpret any terms in the Decision on Institution. Dec. on Inst. 9–10. Patent Owner does not propose interpretations of any claim terms in its Response. We conclude, based on the full trial record, that no term requires express interpretation to determine whether Petitioner has met its burden to prove unpatentability of the challenged claims. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“Because we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy,’ we need not construe [a particular claim limitation] where the construction is not ‘material to the . . . dispute.’” (emphasis added) (citation omitted)).” slip op. at 8

  • Strike new argumentNew argument disregardedGranted in part

    “Pursuant to 37 C.F.R. § 42.23(b), “[a] reply may only respond to arguments raised in the corresponding . . . patent owner response.” “‘Respond,’ in the context of 37 C.F.R. § 42.23(b), does not mean proceed in a new direction with a new approach as compared to the positions taken in a prior filing.” Patent Trial and Appeal Board Trial Practice Guide § II.I, available at https://www.uspto.gov/patents/ptab/trial-practice-guide (last updated Dec. 12, 2025). “While replies . . . can help crystalize issues for decision, a reply . . . that raises a new issue or belatedly presents evidence may not be considered.” Id. An indication that a new issue is improperly raised in a reply is where a petitioner submits “new evidence necessary to make out a prima facie case” of unpatentability, such as a “newly raised rationale to combine the prior art references that was not expressed in the petition.” Id. That is the case here. Petitioner’s rationale in the Petition for why a person of ordinary skill in the art would have been motivated to lower Bowen’s 0.9 eV barrier height to 0.33 eV based on Soukup was that such an artisan would have expected lowering the barrier height to increase TMR. See Pet. 34–36. Faced with Dr. Bokor’s testimony on cross-examination, Petitioner presents a new theory in its Reply that a person of ordinary skill in the art would not have known what impact lowering the barrier height would have (increase TMR, decrease it, or have no impact at all), but would have expected it to change in some “uncertain” way, which is a “legally sufficient motivation” in Petitioner’s view. See Reply 6–10, 13–16, 23–25. In other words, “[r]ather than explaining how its original” position that lowering barrier height would increase TMR “was correct,” Petitioner articulated “an entirely new theory . . . absent from the [P]etition” after Patent Owner cross-examined Dr. Bokor and “pointed out the flaws of [Petitioner’s] position” in its Response. See Wasica Finance GmbH v. Continental Auto. Sys., Inc., 853 F.3d 1272, 1286 (Fed. Cir. 2017). “Shifting arguments in this fashion is foreclosed by statute, [Federal Circuit] precedent, and Board guidelines.” Id.” slip op. at 20

  • Expert testimonyPetitioner expert discountedPatent owner expert creditedDecided for patent owner

    “Ultimately, the cross-examination testimony above is inconsistent with Dr. Bokor’s opinions in his declaration that, for example, “[i]t was understood to one of skill that lowering the barrier height to increase tunneling would have increased the TMR,” and “[o]ne of skill would have been motivated to adjust oxygen vacancy defects to improve TMR by lowering the barrier height.” See Ex. 1024 ¶¶ 176, 277 (emphasis added); see also id. ¶ 172 (“[O]ne of skill in the art would have been motivated to use [Soukup’s 0.33 eV] or similar height in an MgO MTJ to improve tunneling and hence TMR in Bowen.”). Accordingly, we do not find Dr. Bokor’s declaration testimony regarding a motivation to lower Bowen’s barrier height credible. It is Petitioner’s burden to provide a reasoned, evidence-supported explanation for why a person of ordinary skill in the art would have been motivated to lower Bowen’s 0.9 eV barrier height to 0.33 eV as disclosed in Soukup. See NuVasive, 842 F.3d at 1383; Magnum Oil, 829 F.3d at 1380; TriVascular, 812 F.3d at 1066. Petitioner’s reasoning in the Petition that lowering the barrier height (by introducing oxygen defects) would increase TMR is unsupported by evidence.” slip op. at 31

  Patent outcomesUS 11,968,909 not shown unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,968,909
• Western Digital Technologies, Inc. v. Godo Kaisha IP Bridge 1Some claims unpatentable
  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
• Samsung Electronics Co., Ltd. / Samsung Electronics America, Inc. v. Power2b, Inc.All claims unpatentable
  PTAB · Mar 13, 2026 · IPR2021-01266 · APJ John D Hamann · IPR · Remand

  On remand, the Board held claims 29, 36–38, 44–46, 48, 49, and 56–58 unpatentable as obvious over Reime, with additional grounds also supporting the challenged claims.

  RulingsRemand decision

  • ExcludeMotion to exclude, deniedDenied

    “In addition, Patent Owner filed a Motion to Exclude certain of Petitioner’s evidence (Paper 32) and Petitioner filed an Opposition (Paper 33). We denied this motion. See Final Dec. 58–61.” slip op. at 3

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

    “transmission paths. See Pet. Reply 14–15; PO Sur-reply 15. And we agree with both parties that the light that is transmitted directly through the plate to the sensor element does not have intervening reflections—such is consistent with the plain and ordinary meaning of “directly to.” See PO Resp. 31–32; Pet. Reply 14–15; PO Sur-reply 15. Nothing in claim 48’s language, however, requires that all of the reflected light be transmitted directly to the sensor element, which Patent Owner argues. Ex. 1001, 70:32–35; PO Resp. 31–32; PO Sur-reply 14–16. Rather, we agree with Petitioner that the claim language “merely requires that some light reflected by the object goes ‘directly to’ at least one sensor element once it is transmitted through the viewing plane defining plate.” Pet. Reply 14. We also agree that “none of these dependent claims purport to be exclusive of one another.” Id. at 15. Rather, claims 46–48 simply require some light be transmitted (or propagated) for their particular transmission path, without reciting all light. See Ex. 1001, 70:24–35.” slip op. at 13

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

    “We find Petitioner’s arguments based on Reime alone insufficient. Thus, we find that Petitioner does not show by a preponderance of the evidence that claim 49 is rendered obvious by Reime alone.” slip op. at 52

  • Obviousness (§103) › KSR rationalesUnpatentableUnpatentable

    “And in view of the above, we find persuasive Dr. Bederson’s testimony that “[c]hoosing a multi-element detector or a single-element detector would have been a simple design choice using commercially available detectors.” Ex. 1002 ¶ 117. Accordingly, we find that one of ordinary skill in the art would have found it obvious for Reime’s receivers to be implemented using discrete single-element detectors. See KSR, 550 U.S. at 417 (“When there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill has good reason to pursue the known options within his or her technical grasp. If this leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense.”). We find unavailing Patent Owner’s argument that “Petitioner relies on expert testimony to gap-fill missing elements regarding Reime’s failure to disclose or suggest the different claim arrangements of detector elements in a ‘detector assembly.’” PO Resp. 78 (citing Ex. 1002 ¶¶ 111–119; Ex. 2056 ¶ 171). Rather, in light of Reime’s teachings, coupled with the general knowledge of one of ordinary skill in the art, it would have been obvious to employ discrete single-element detectors for Reime’s receivers. See Koninklijke Philips N.V. v. Google LLC, 948 F.3d 1330, 1338 (Fed. Cir. 2020) (finding obviousness can rely on supported expert testimony to supply an element of a claim). We appropriately consider such evidence of the knowledge that one of ordinary skill in the art would have had as part of our obviousness analysis. See Randall Mfg. v. Rea, 733 F.3d 1355, 1362–63 (Fed. Cir. 2013). Moreover, “AAPA can be important evidence of general background knowledge, and general knowledge can be used to supply a missing claim 1371, 1378–79 (Fed. Cir. 2025). Here, Petitioner relies on the cited AAPA as evidence of one of ordinary skill in the art’s general knowledge at the time of the ’093 patent, and the AAPA is not the basis for this ground. See Pet. 4, 42–43; Pet. Remand 4–5. As Shockwave Med. explains, Federal Circuit “case law has long recognized numerous permissible uses for general background knowledge in an IPR such as, ‘for example, furnishing a motivation to combine, or supplying a missing claim limitation.” 142 F.4th at 1378–79 (quoting Qualcomm Inc. v. Apple Inc., 24 F.4th 1367, 1376 (Fed. Cir. 2022) (citing Randall Mfg., 733 F.3d at 1362; Koninklijke, 948 F.3d at 1337–38)).” slip op. at 31

  Patent outcomesUS 9,569,093 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 9,569,093
• Samsung Electronics Co., Ltd. / Samsung Electronics America, Inc. v. Power2b, Inc.All claims unpatentable
  PTAB · Mar 13, 2026 · IPR2021-01239 · APJ John D Hamann · IPR · Remand

  On remand, the Board held claims 17, 18, 21, 22, 26, and 30 unpatentable as obvious over Reime, with claims 17, 18, 21, 22, and 30 also obvious over Reime and Hinckley.

  RulingsRemand decision

  • ExcludeMotion to exclude, deniedDenied

    “In addition, Patent Owner filed a Motion to Exclude certain of Petitioner’s evidence (Paper 28) and Petitioner filed an Opposition (Paper 34). We denied this motion. See Paper 41, 47–50.” slip op. at 3

  • Skill levelSkill level board ownOther

    “one having ordinary skill in the art at the time of the invention of the ’850 patent: one who “would have had a bachelor’s degree in electrical engineering, computer engineering, computer science, or a related field, and . . . years of experience in the research, design, development, and/or testing of touch and/or proximity sensors, human-machine interaction and 3 The Leahy-Smith America Invents Act (“AIA”) included revisions to 35 U.S.C. § 103 that became effective on March 16, 2013. Because the ’850 patent issued from an application filed before March 16, 2013, we apply the pre-AIA version of the statutory basis for unpatentability. 4 US 2003/0034439 A1, published Feb. 20, 2003 (Ex. 1010, “Reime”). 5 US 2002/0021278 A1, published Feb. 21, 2002 (Ex. 1011, “Hinckley”). Petitioner lists the combination of Reime and Hinckley as a separate asserted ground for claim 26. We combine these two asserted grounds into one as they rely on the same combination. additional education substituting for experience and vice versa.” Final Dec. 8–9. This definition for one having ordinary skill was not the subject of appeal, and we maintain it for purposes of this Final Written Decision on Remand. Moreover, it is consistent with the ’850 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 8

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner

    “PO Resp. 17–29; Pet. Reply 8–15; PO Sur-reply 6–11. We construed this term in the Final Written Decision. Final Dec. 10–24. In particular, we concluded that (i) “detector assembly” means “two or more detector elements that detect electromagnetic radiation,” and (ii) a detector assembly is not required to be physically separate from (i.e., not interspersed with) a pixel array. Id. at 20, 22. The Federal Circuit found the first part of our construction erroneous. Appeal Dec. 7–10. In particular, the Federal Circuit concluded that “[t]he element.” Id. at 8. In addition, to guide the Board’s analysis on remand, the Federal Circuit construed “the terms ‘at an edge’ and ‘at least one edge’ [to] require a detector assembly to be arranged along one or more edges of a viewing plane defining plate.” Id. at 10–11. In other words, the Federal Circuit “clarif[ied] that arranging a detector assembly ‘at,’ ‘along,’ or ‘about’ ‘at least one edge’ or ‘an edge’ does not limit the detector assembly to being arranged entirely on ‘one edge.’” Id. at 12.” slip op. at 9

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

    “the Federal Circuit already has concluded that claim 15 is obvious in view of Reime. Appeal Dec. 9–10. Claim 17 further recites “wherein the detector assembly comprises: a support substrate, and an arrangement of detector elements.” Ex. 1001, 67:15–18. We agree with Petitioner and find that Reime teaches these further limitations. Pet. 34–35; Pet. Remand 2–4; Pet. Resp. Remand 1–3. First, as we found in the Final Written Decision, Reime’s receivers 30 and 32 are two detector elements that detect electromagnetic radiation (i.e., light), and Reime’s receivers 30 and 32, collectively, comprise a detector assembly. Final Dec. 27–28 (citations omitted). Moreover, Reime’s two receivers 30 and 32 comprise a detector assembly having multiple detector elements (e.g., two receivers) to teach “an arrangement of detector elements.” Ex. 1010 ¶¶ 73, 86, Figs. 9A–9C; Ex. 2060,7 127:17–18; Pet. 32–33; Pet. Reply 20; Pet. Remand 3. In addition, as we found in the Final Written Decision, Reime teaches that each of receivers 30 and 32 are centered on opposite edges of the plate. 7 Deposition Transcript of Dr. Benjamin Bederson (Apr. 7, 2022). Ex. 1010, Fig. 6A, ¶ 82) (affirming that Reime teaches having one light receiver (e.g., 30 or 32) on each side of a four-sided touch pad). In further support, we agree with Petitioner and find that Reime teaches that receivers 30 and 32 “are mounted in the peripheral area surrounding the LCD 92.” Pet. 32–33; Ex. 1010 ¶ 86; see also id. at Figs. 9A–9C (showing that the receivers are positioned at the edge of the LCD screen); infra annotated Fig. 9E (showing receivers 30 and 32 along edges of the LCD). Accordingly, we find Reime’s detector assembly that comprises receivers 30 and 32 is arranged along two edges (one edge for each receiver) of the LCD, which meets the Federal Circuit’s construction for being arranged at at least one edge. See supra Section III (concluding “at least one edge” means “arranged along one or more edges”) (emphasis added).” slip op. at 12

  Patent outcomesUS 8,624,850 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 8,624,850
• Boe Technology Group Co., Ltd. v. Optronic Sciences LLCAll claims unpatentable
  PTAB · Feb 17, 2026 · IPR2024-01132 · APJ Kevin W Cherry · IPR · Final written decision

  Claims 1–7 are unpatentable: claims 1–3 and 5 are anticipated by Anzai, claim 4 is obvious over Anzai and Yamazaki, and claims 1–7 are obvious over Yamazaki and Anzai.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner describes a person of ordinary skill in the art (“POSITA” or “ordinarily skilled artisan”) at the time of the invention as having “a Bachelors’ degree in electrical engineering or a comparable field of study, plus approximately two to three years of professional experience with electronic and optoelectronic device design” and notes that “[a]dditional graduate education could substitute for professional experience, and significant experience in the field could substitute for formal education.” Pet. 5–6 (citing Ex. 1002, Neikirk Decl., ¶ 23). Patent Owner’s expert, Dr. Bretschneider testifies that In my opinion, the field of “electronic and optoelectronic device design” is too broad. A POSITA of the ’121, had at least a Bachelors’ degree in a field of engineering or physics and at least two to three years of professional experience related to the design and manufacture of the relevant aspects of flat panel displays. Additional relevant graduate education related [sic] could reduce but not eliminate the time requirement for professional experience. While Dr. Neikirk proposes a different definition of a POSITA, the differences do not have material effect on my opinions rendered below. Regardless of which definition of a POSITA were used, my conclusions would remain the same Ex. 2005, Bretschneider Decl., ¶ 39. We agree with and will apply Petitioner’s statement of the level of ordinary skill in the art. This level of ordinary skill is reflective of the education and experience that would have been required to understand the problems and solutions identified in the ’121 patent and the prior art. Okajima v. Bourdeau, 261 F.3d 1350 (Fed. Cir. 2001). We note that our conclusions would be the same even if we applied Patent Owner’s slightly narrower definition of a POSITA.” slip op. at 11

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner

    “We find these definitions to be of some help in construing this term. We find that the common thread is that a “passivation layer” is an insulating layer that provides protection from the environment to the layers below it. See Ex. 1012, 140; Ex. 1013, 542, Ex. 1014, 798; Ex. 2010, 3; Ex. 2013, 1. We find this construction to be most consistent with the broad claim language and the disclosure in the Specification. Although “tying up dangling bonds,” may be a mechanism by which some materials provide such protection, nothing in the Specification or the extrinsic evidence provided appears to require that. Also, while chemical protection may be one kind of protection none of the evidence suggests that is the only protection that is provided. Moreover, nothing in the Specification supports reading a chemical protection requirement into the construction. Thus, we decline to adopt that portion of Patent Owner’s construction. Instead, we construe passivation layer as “an insulating layer that provides protection from the environment to the layers below it.” We need not construe the term any further to resolve the parties’ dispute over this claim language. See Realtime, 912 F.3d at 1375.” slip op. at 19

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

    “constructions for “passivation layer” and “capping layer.” We find that Petitioner has presented sufficient evidence to show that Anzai discloses both a “passivation layer” and a “capping layer.” As we explained above, we have construed “passivation layer” to mean “an insulating layer that provides protection from the environment to the layers below it.” Petitioner has shown that “first planarization film 17” is an insulating layer. See Ex. 1002 ¶¶ 62–65. We further find that Petitioner has shown sufficiently that “first planarization film 17” is “formed over the entire surface for flattening, which will protect the semiconductor surface from the surrounding environment.” Id. ¶ 63. We have rejected Patent Owner’s contentions that the film must tie up “dangling bonds,” and instead determined that protecting the surface from the environment is sufficient. Thus, we find that Petitioner has shown by a preponderance of the evidence that Anzai discloses the “passivation layer” of claim 3. As we explained above, we have construed “capping layer” to be “an insulation layer covering (i.e., capping) an underlying layer or structure.” Here, Petitioner has shown that Anzai’s planarization film 19 meets the claimed “capping layer.” See Pet. 20. We find that Petitioner has shown that it is more likely than not that “planarization film 19” is made of insulating material. As Dr. Neikirk persuasively testifies, Anzai discloses that planarization layer 17 may be made of an organic resin for flattening the surface. EX1003, 4:20-24. While Anzai does not disclose the material for planarization layer 19, it must be made of an insulation material because in the embodiment of Fig. 3A, it is the sole layer between electrode layer 71 and cathode layer 65 forming the second capacitor. Id., 6:3–8; Fig. 3A. Moreover, Anzai discloses that the first planarization film 17 and the second planarization film 19 for the first embodiment “function as the capacitance insulating film for this configuration.” Id., 5:62–67. Ex. 1002, Neikirk Decl., ¶ 62. We find this testimony well-reasoned and entitled to substantial weight. We further agree with Dr. Neikirk that a “POSITA would further understand that the second planarization film 19 is then further disposed on the first planarization film 17 (capping the passivation layer).” Id. ¶ 63 (citing Ex. 1003, 5:3–13; Figs. 2A–B, 3A–B). Thus, we find that Petitioner has shown by a preponderance of the evidence that Anzai discloses the claimed “capping layer.” Accordingly, we find that Petitioner has shown by a preponderance of” slip op. at 32

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

    “motivation to combine Anzai and Yamazaki. See Pet. 25–27; Ex. 1002, Neikirk Decl., ¶¶ 78–79. First, Patent Owner argues that essentially silicon nitride is an inferior material to use for Anzai’s planarization layer 17 compared with organic resin. PO Resp. 13–15. However, “[i]t’s not necessary to show that a combination is the best option, only that it be a suitable option.” Intel Corp. v. Qualcomm Inc., 21 F.4th 797, 800 (Fed. Cir. 2021) (emphasis in original). Patent Owner does not argue that silicon nitride would not work, but rather that it would be more difficult and more expensive to use. See PO Resp. 14. But “the fact that the two disclosed apparatus[es] would not be combined by businessmen for economic reasons is not the same as saying that it could not be done because skilled persons in the art felt that there was some technological incompatibility that prevented their combination. Only the latter is telling on the issue of nonobviousness.” Grit Energy Solutions LLC v. Oren Techs., LLC, 957 F.3d 1309, 1323 (Fed. Cir. 2020) (quoting Orthopedic Equip. Co., Inc. v. United States, 702 F.2d 1005, 1013 (Fed. Cir. 1983)). “Likewise, a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.” Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165 (Fed. Cir. 2006). Here, Petitioner explains that “a POSITA would have known that organic materials usually have lower dielectric constants than inorganic materials, such as SiN, and a higher dielectric constant is desirable for the insulator in a capacitor since that leads to higher capacitance per unit area.” Pet. 26 (citing Ex. 1002, Neikirk Decl., ¶ 78). Petitioner further explains that this “then allows a reduced area storage capacitance element, one of the objectives of Anzai.” Id. (citing Ex. 1003, code (57)). Patent Owner’s focus mainly on planarization (PO Sur-reply 16–17) ignores that the Anzai’s planarization layers 17 and 19 also “function as the capacitance insulating film.” Ex. 1003, 5:65–67. Thus, although there are tradeoffs, Petitioner has shown sufficiently that a POSITA would have been motivated to incorporate the teachings of Yamazaki regarding potential materials for planarization layers 17 and 19. Second, Patent Owner argues that a Petitioner has failed to provide an adequate reason to select silicon nitride from Yamazaki’s list of potential materials. We disagree. Petitioner has explained the benefits of selecting a high dielectric inorganic material. Pet. 26. Yamazaki provides only three potential options—silicon oxide, silicon nitride, and silicon oxynitride. See Ex. 1004, 11:45–50. Moreover, Dr. Neikirk testified, supported by multiple references, that using silicon nitride was well known in the prior art at the time of the invention. See Ex. 1002, Neikirk Decl., ¶ 75 (citing Ex. 1007; Ex. 1008; Ex. 1009). “When there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill has good reason to pursue the known options within his or her technical grasp.” KSR, 550 U.S. at 421. Indeed, “[i]f a person of ordinary skill can implement a predictable variation, § 103 likely bars its patentability.” Id. at 417. This is the case here. Petitioner has shown that a person of ordinary skill seeking to improve the capacitance of Anzai’s planarization layers 17 and 19, without increasing the size of the capacitor, would have looked at the inorganic materials identified in Yamazaki as suitable for the purpose, and it would have been would obvious to choose silicon nitride, a well-known, and predictable material for the application. Thus, we disagree with Patent Owner that Petitioner has failed to show a sufficient reason for selecting silicon nitride from Yamazaki’s list of suitable materials. Third, Patent Owner argues that Petitioner’s contentions only support” slip op. at 37

  Patent outcomesUS 7,586,121 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,586,121

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.