• 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
• Activision Blizzard, Inc. v. Milestone Entertainment, LLCSome claims unpatentable
  PTAB · Oct 13, 2026 · IPR2025-00710 · APJ Scott A Daniels · IPR · Final written decision

  Claims 1–7, 9, 13, and 16–20 are unpatentable as obvious over Schneier and over Schneier with Okita; claim 8 was not shown unpatentable under either ground.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “On this record, Petitioner’s proposed level of ordinary skill in the art is not contradicted and is consistent with the technology and descriptions in the ’294 patent and the asserted prior art references. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). For purposes of this Decision, we rely on Petitioner’s proposed level of ordinary skill in the art.” slip op. at 7

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

    “Petitioner indicates that “[t]his Petition establishes that the prior art meets each of the claim limitations under any reasonable construction. Thus, no express construction is required.” Pet. 13 (citing Ex. 1003 ¶ 86). In its Response, Patent Owner indicates that no constructions are necessary “because under any reasonable construction of the claim terms, the prior art fails to disclose or suggest the claimed features.” PO Resp. 4–5. Because there is no dispute between the parties as to any particular claim term and because the claims, as a whole, are reasonably clear on their face, no specific claim construction is necessary in this proceeding.” slip op. at 8

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

    “rather than 10 credits, does not have a temporal component. Ex. 1008, 63:31–34. Rather, it describes an option for the user or player to obtain a discount at a particular point in time if the player is willing to purchase 20 rather than 10 credits. Id. Petitioner’s citations to this embodiment do not 9. Pet. 31; Pet. Reply 3–7 (citing Ex. 1008, 63:31–34). In this embodiment the $0.30 and $0.50 multipliers are constant, and the user is simply choosing between two existing options at a particular time to potentially take advantage of a $0.20 discount on credits. Comparatively, the $0.30 and $0.50 multipliers are different, but they are not “variable over time,” as required by claim 9. Ex. 1001, 47:38–40.” slip op. at 17

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “and reliance on Figure 19 do not in any way explain how updating game costs by meter 502 with a new Cost_Table is relevant to a credit multiplier or even a multiplier being varied over time. Ex. 1003 ¶ 155. Considering this evidence, we determine that Petitioner and Mr. Crevelt’s reliance mainly on snippets from Schneier’s “Updating Cost Information protocol” embodiment does not sufficiently explain why or how a person of ordinary skill in the art would have understood updating game cost to encompass varying a multiplier of credits over time. We also note that during his deposition, Mr. Crevelt was given opportunity to clarify his testimony as to Figure 19 and explain the cost updating embodiment in Schneier, and mostly demurred. See Ex. 2004:158:4–182:6. Explaining his reliance on Figure 19, Mr. Crevelt stated: A: And whatever latest price from that updated cost information coming from the central site is -- is variable, it’s variable as time proceed[s]. It’s a – it’s a, much of a complicated section, and -- but the information is in the Schneier patent and shows that it could have -- it should change over time. Id. at 158:23–159:5. Mr. Crevelt further stated that: A: . . . for a metered play where you’re buying so much time or so many credits or so many games on a specific game and when it runs out, then have you to buy more, and that variable can change over time. relates Schneier’s “updated cost,” with the claimed “multiplier” and “variable,” and does not adequately explain how they are equivalent or interconnected. See, e.g., id. at 160:16–23 (Mr. Crevelt testifying that “we can go from the description of figure 19, which starts at basically the top of column 56 in the Schneier patent, and . . . describes this process in detail of how the information is transferred from one place to the other and updated.”). Mr. Crevelt concludes that Schneier’s description is “complicated,” and from Figure 19 asserts the cost somehow includes a credit multiplier that “could” or “should” change over time. Id. at 158:23– 159:5. Overall, this testimony fails to sufficiently explain or point to persuasive evidence in Schneier as to how or why a person of ordinary skill in the art would have understood that the Figure 19 cost updating embodiment discloses a time-variable multiplier as required in claim 8.” slip op. at 20

  Patent outcomesUS 10,825,294 mixed
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,825,294
• Activision Blizzard, Inc. v. Milestone Entertainment, LLCSome claims unpatentable
  PTAB · Oct 13, 2026 · IPR2025-00709 · APJ Scott A Daniels · IPR · Final written decision

  Claims 1, 2, 4, 6, 8, 10, 14–18, 21–23, 25, 27, and 29 are unpatentable as obvious over Schneier and over Schneier with Okita; claim 9 was not shown unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner states it “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.” PO Resp. 4. Patent Owner states further that “this [Patent Owner Response] and supporting declarations apply Petitioner’s proposed level of skill.” Id. On this record, Petitioner’s proposed level of ordinary skill in the art is not contradicted and is consistent with the technology and descriptions in the ’635 patent and the asserted prior art references. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). For purposes of this Decision, we rely on Petitioner’s proposed level of ordinary skill in the art.” slip op. at 7

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

    “Petitioner indicated in the Petition that “[t]his Petition establishes that the prior art meets each of the claim limitations under any reasonable construction.[] Thus, no express construction is required.” Pet. 12–13 (citing Ex. 1003 ¶ 85). In its Response, Patent Owner indicates that no constructions are necessary “because under any reasonable construction of the claim terms, the prior art fails to disclose or suggest the claimed features.” PO Resp. 4–5. Because there is no dispute between the parties as to any particular claim term and because the claims, as a whole, are reasonably clear on their face, no specific claim construction is necessary in this proceeding.” slip op. at 8

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “We also note that during his deposition, Mr. Crevelt was given opportunity to clarify his testimony as to Figure 19 and explain the cost updating embodiment in Schneier, and mostly demurred. See Ex. 2004, 158:4–182:6. Explaining his reliance on Figure 19, Mr. Crevelt stated: A: And whatever latest price from that updated cost information coming from the central site is -- is variable, it’s variable as time proceed[s]. It’s a – it’s a, much of a complicated section, and -- but the information is in the Schneier patent and shows that it could have -- it should change over time. Id. at 158:23–159:5. Mr. Crevelt further stated that: A: . . . for a metered play where you’re buying so much time or so many credits or so many games on a specific game and when it runs out, then have you to buy more, and that variable can change over time. Id. at 161:2–6. These explanations are unpersuasive because the testimony relates Schneier’s “updated cost,” with the claimed “multiplier” and “variable,” and does not adequately explain how they are equivalent or interconnected. See, e.g., id. at 160:16–23 (Mr. Crevelt testifying that “we can go from the description of figure 19, which starts at basically the top of column 56 in the Schneier patent, and . . . describes this process in detail of how the information is transferred from one place to the other and updated.”). Mr. Crevelt concludes that Schneier’s description is “complicated,” and from Figure 19 asserts the cost somehow includes a credit multiplier that “could” or “should” change over time. Id. at 158:23– 159:5. Overall, this testimony fails to sufficiently explain or point to in the art would have understood that the Figure 19 cost updating embodiment discloses a time-variable multiplier as required in claim 9.” slip op. at 21

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

    “Discount Credit Pricing Structure The $0.20 discount described by Schneier for purchasing 20 credits, rather than 10 credits, does not have a temporal component. Ex. 1008, 63:31–34. Rather, it describes an option for the user or player to obtain a discount at a particular point in time if the player is willing to purchase 20 rather than 10 credits. Id. Petitioner’s citations to this embodiment do not address the idea of a time component, i.e., “over time,” as required by claim 9. Pet. 31; Pet. Reply 3–7 (citing Ex. 1008, 63:31–34). In this embodiment the $0.30 and $0.50 multipliers are constant, and the user is simply choosing between two existing options at a particular time to potentially take advantage of a $0.20 discount on credits. Comparatively, the $0.30 and $0.50 multipliers are different, but they are not “variable over time,” as required by claim 9. Ex. 1001, 47:38–40.” slip op. at 18

  Patent outcomesUS 10,650,635 mixed
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,650,635
• Activision Blizzard, Inc. v. Milestone Entertainment, LLCAll claims unpatentable
  PTAB · Oct 8, 2026 · IPR2025-00711 · APJ Linda E Horner · IPR · Final written decision

  Claims 1, 2, 4–7, 9, 11–13, 15, 19, 23, 24, and 29 are unpatentable as obvious over Kelly, Kelly and Paulsen, or Walker and Schneier.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “B. Level of Ordinary Skill in the Art There is no evidentiary dispute about the level of ordinary skill in the art.7 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. 12 (citing Ex. 1003 ¶¶ 100–103). 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 ’164 patent Specification and the asserted prior art references, based on our review of the record.” slip op. at 10

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

    “Petitioner argues that it is not necessary for the Board to provide an express construction for any claim term because the Petition “establishes the prior art meets each claim limitation under any reasonable construction.” Pet. 13. Patent Owner similarly submits that “[t]he Board need not construe any terms at this stage, because under any reasonable construction of the claim terms, the prior art fails to disclose or suggest the claimed features.” Resp. 8–9. Patent Owner notes, however that “it has relied on the plain meaning of ‘frequency of play’ in Claim 7.” Id. at 9. We agree that no explicit claim construction is necessary for this decision because, even were we to adopt Patent Owner’s proffered plain meaning of “frequency of play,” Petitioner has demonstrated that the prior art renders obvious this claim limitation. To the extent the parties’ arguments raise any implicit issues of claim construction, we address those issues within the context in which they are raised in our analysis below.” slip op. at 11

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

    “Patent Owner does not contest Petitioner’s showing that Kelly renders obvious the subject matter of claims 1, 2, 4–6, 11–13, 15, 19, 23, 24, and 29. Resp., passim; Tr. 50:4–13.8 We have reviewed Petitioner’s arguments and 8 Patent Owner argued in its Preliminary Response that Kelly does not disclose limitations [1.c.iii] and [1.c.v]. Prelim. Resp. 10–12. In our Institution Decision, we did not find these contentions persuasive based on the initial record. Dec. 20–24. Patent Owner has not presented these or any other arguments contesting Ground 1 as to claim 1 in its Response. Resp., the evidence and, based on that analysis, we find that Petitioner has shown by a preponderance of evidence that Kelly renders obvious the subject matter recited in these claims.” slip op. at 17

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

    “and Paulsen render obvious claims 2 and 4. Pet. 36–40. Petitioner submits that to the extent Kelly’s player account is not player’s club information or information on non-cash amounts, a person having ordinary skill in the art would have been motivated to implement these features based on the teachings of Paulsen. Id. Specifically, Petitioner asserts that Paulsen teaches player tracking cards and player tracking programs including player tracking points. Id. at 38–40 (citing Ex. 1007 ¶¶ 8, 9, 49). Petitioner argues that a person having ordinary skill in the art would have been led to add these features to Kelly’s system to provide a more detailed view of tracking play, which would allow for rewarding patronage and engagement. Id. at 36–37, 39–40 (citing Ex. 1003 ¶ 264; Ex. 1007 ¶ 10). Paulsen discloses a “gaming machine bonusing method utilizing a player tracking card.” Ex. 1007, code (54). Paulsen discloses that player tracking programs and player tracking cards were used in the art to provide rewards, or “comps,” to players based on the player’s level of patronage (e.g., to the player’s playing frequency and/or total amount of game plays at a given casino). Id. ¶ 8. These rewards were intended to maintain a player’s interest in additional game play during a visit and provide loyalty incentives to players. Id. at ¶ 9.” slip op. at 29

  Patent outcomesUS 11,335,164 unpatentable
  Claim construction§ 103 obviousness
  Patents in suitUS 11,335,164
• Axon Enterprise, Inc. / Dedrone Holdings, Inc. et al. v. Airspace Defense, Inc.Some claims unpatentable
  PTAB · Oct 6, 2026 · IPR2025-00629 · APJ Scott C Moore · IPR · Final written decision

  Original claim 12 is not unpatentable; substitute claim 37 is added, while substitute claims 21–28 and 30–36 are denied as obvious.

  RulingsFinal written decision

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner

    “F.3d at 1279–80, we begin our analysis with the Specification of the ’711 Patent. The Specification indicates when a UAV (such as the recited “reference aerial vehicle”) navigates autonomously, it flies without manual control, and can, for example, track and fly to a target using information captured onboard the vehicle itself. See Ex. 1001, 3:24–28 (“[I]t may not be desirable to manually control the interceptor aerial vehicle to follow the target UAV. In some embodiments, the interceptor aerial vehicle is able to autonomously track and fly to the target UAV using machine vision based on images captured by a camera of the interceptor aerial vehicle.”). The Specification also indicates that “autonomous” means more than just “automatic flight,” and clarifies that autonomous navigation occurs when a UAV that previously received a target location from an external source subsequently turns and flies itself towards the received location. See, e.g., id. at 4:15–17 (disclosing that the detected location of a target may be provided to an interceptor “to allow it to automatically and autonomously fly toward the direction of the detected location”); 15:64–16:3 (automatic and autonomous navigation occurs when an interceptor’s navigation component and/or flight controller receive the location of a target, and adjust the interceptor “to turn and fly towards the received location . . . based on the received location”); 16:49–60 (“For example, a flight direction and/or speed of an interceptor aerial vehicle are automatically and autonomously adjusted based on a location and size of the target within the captured image. . . . This allows the flight path of the interceptor aerial vehicle to be dynamically adjusted to track and follow a moving target.”).” slip op. at 11

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

    “have had reason to combine Beard and Laufer in the manner proposed by Petitioner, the combination would not satisfy the Autonomous Navigation limitation required by claim 12 because Laufer’s autopilot commands are generated by and transmitted from a remote command center (i.e., Laufer’s central controller 115). PO Resp. 15–16. In its Reply, Petitioner does not dispute that Laufer’s autopilot commands are generated by Laufer’s central controller 115, which is remote from the aircraft being controlled. See Reply 13–17. Petitioner asserts, however, that the combination still satisfies the Autonomous Navigation limitation because these autopilot commands are generated without human input. See id. Based on the complete trial record, Patent Owner’s arguments are persuasive. See PO Resp. 15–16; PO Sur-reply 42, 1–6; Ex. 2025 ¶¶ 84–87. The flight of Beard’s UAV 100 under the control of Laufer’s autopilot commands does not satisfy the Autonomous Navigation limitation of claim 12, as we have construed that limitation, because Laufer’s autopilot commands are generated at a location that is remote from UAV 100 (Laufer’s central controller 115.) See, e.g., Ex. 1010 ¶ 40 (“Central controller 115 uses autopilot command module 440 to generate autopilot aircraft commands”), ¶¶ 26, 30 (clarifying that central controller 115 and the controlled interceptor aircraft are separate devices that may communicate through a “wireless connection”), Fig. 4 (depicting “aircraft control commands 475” being generated externally from the depicted “Interceptor Aircraft”); see also Ex. 2025 ¶¶ 95–95. Petitioner never disputes that, in the proposed combination, Laufer’s central controller 115 would remain external to Beard’s UAV 100. See Reply 13–17. Instead, Petitioner relies on its proposed construction of the Autonomous Navigation limitation, which would have encompassed such an arrangement. See id. Our construction of the Autonomous Navigation limitation, which did not adopt Petitioner’s claim construction position, is dispositive of Petitioner’s argument. We thus determine that Petitioner has not shown by a preponderance of the evidence that claim 12 would have been obvious over Beard and Laufer.” slip op. at 15

  • PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend granted in partGranted in part

    “the legal requirements set forth in 35 U.S.C. § 316(d) and 37 C.F.R. § 42.121. Lectrosonics, Paper 15 at 4, 7–8. For the reasons that follow, we determine that Patent Owner has satisfied this burden. 1. Proposal of a Reasonable Number of Substitute Claims A motion to amend must “propose a reasonable number of substitute claims.” 35 U.S.C. § 316(d)(1)(B); see also 37 C.F.R. § 42.121(a)(3) (“A motion to amend may cancel a challenged claim or propose a reasonable number of substitute claims.”). “There is a rebuttable presumption that a reasonable number of substitute claims per challenged claim is one (1) substitute claim.” Lectrosonics, IPR2018-01129, Paper 15 at 4; see also 37 C.F.R. § 42.121(a)(3). Patent Owner has shown it proposes a reasonable number of substitute claims by proposing a single substitute claim for each of challenged claims 1–4, 8–11, and 13–20. MTA 1–2, Claims App. Petitioner does not argue otherwise. See generally MTA Opp. We determine that Patent Owner meets this requirement. 2. Amendments Respond to a Ground of Unpatentability “A motion to amend may be denied where … [t]he amendment does not respond to a ground of unpatentability involved in the trial.” 37 C.F.R. § 42.121(a)(2)(i). Patent Owner has responded to the grounds of unpatentability involved in this proceeding by amending the claims in response to the Petition’s asserted prior art. See MTA 2, 25, Claims App. Petitioner does not argue otherwise. See generally MTA Opp. We determine that Patent Owner meets this requirement. 3. No Enlargement of the Scope of the Claims An amendment may not seek to enlarge the scope of the claims of the patent. 35 U.S.C. § 316(d)(3); 37 C.F.R. §§ 42.121(b)(1)–(b)(2). Patent Owner asserts that the amendments in the Motion do not enlarge the scope of the claims of the patent because each proposed substitute claim “retains all of the limitations of the corresponding challenged claim, and each proposed independent substitute claim adds further limitations.” See MTA 2, Claims App. Petitioner does not argue otherwise. See generally MTA Opp. We determine that Patent Owner meets this requirement. 4. No Introduction of New Matter An amendment may not introduce new matter. 35 U.S.C. § 316(d)(3);” slip op. at 22

  • 112 supportDecided for patent owner

    “Having considered the evidence and argument cited by both parties, we determine there is sufficient written description support for the disputed portions of limitations [37.e1], [37.e3,] and [37.e4]. The ’452 application discloses selecting between groups of processing schemes (e.g., algorithms) depending on a confidence level, where the groups are, for example: high cost, high robustness algorithms; medium cost, medium robustness algorithms; and low cost, low robustness algorithms. See Ex. 2019 ¶¶ 146–147. These schemes or algorithms may be neural networks. See, e.g., id. ¶ 50 (including neural network as a type of algorithm); see also id. ¶¶ 109–110); see generally MTA Opp 1 (not disputing that schemes may be neural networks). Specifically, the ’452 application describes “algorithms that process video frames of one or more video data streams,” and “produce a prediction of objects within the video f[r]ame, as well as a confidence number that is a measure of quality for that prediction.” Id. ¶ 141. The ’452 application also discloses the concept of switching between neural networks based on confidence levels. In particular, the ’452 application discloses that a “process cycles through the processing schemes to produce a detection of an object,” for example, where “if the confidence number is higher than an activation number, an action is performed to stop or change a running group (i) and select or switch to group (ii).” Id. ¶ 146. More particularly, “a processing scheme from the group of (i) High cost (low refresh rate), high robustness algorithm[s] can select a cheaper processing scheme from the group of (ii) Medium cost, medium robustness algorithms.” Id. The ’452 application additionally discloses that schemes or algorithms (e.g., neural networks) are applied to individual video frames, and that the confidence levels that determine which neural network will be applied in the future are also derived from individual video frames. For example, as discussed above, the ’452 application describes that “[t]he processing schemes produce a prediction of objects within the video f[r]ame, as well as a confidence number that is a measure of quality for that prediction.” Ex. 2019 ¶ 141 (emphases added). The ’452 application also describes selecting and applying an individual neural network, rather than only selecting and applying a group of processing schemes. For example, as highlighted above, the ’452 application describes that “a processing scheme from the” “High” group “can select a cheaper processing scheme from the” “Medium” group. Id. ¶ 146 (emphases added). In our view, these disclosures, read together, would reasonably convey to one skilled in the art that the inventor had possession of the disputed subject matter described above. See Ariad, 598 F.3d at 1351.” slip op. at 24

  Patent outcomesUS 10,514,711 mixed
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · Graham · Nautilus
  Patents in suitUS 10,514,711
• Axon Enterprise, Inc. / Dedrone Holdings, Inc. v. Airspace Defense, Inc.Other
  PTAB · Oct 6, 2026 · IPR2025-00525 · APJ Scott C Moore · IPR · Final written decision

  Original claim 21 was canceled; the Board denied substitute claim 22 for new matter and held it obvious under §103 based on six combinations.

  RulingsFinal written decision

  • 112 supportMotion to amend, deniedDenied

    “First, Patent Owner has not shown possession of the disputed feature of a “radio communication module [that] is configured to utilize a secure identifier, the secure identifier comprising a specified excitation.” In the ’406 application, the term “excitation” is used exclusively to refer to a light beam signal. See Ex. 2015, 7:8–13, 9:8–10, 23:9.2 The ’406 application discloses that an identification box on an aircraft may include both an RF module and a separate light sensor. See Ex. 2015, 7:3–11. But nowhere does the ’406 application describe receiving a light beam (e.g., an excitation) with the RF module of the identification box (as opposed to the light sensor), so as to provide support for proposed substitute claim 22’s recitation of a “radio communication module” configured to utilize “a secure identifier . . . comprising a specified excitation.” We disagree with Patent Owner that it suffices that one of ordinary skill in the art “would recognize that these disclosures are equally applicable to the RF-only embodiments” (Reply 5). “It is not sufficient for purposes of the written description requirement . . . that the disclosure, when combined with the knowledge in the art, would lead one to speculate as to modifications that the inventor might have envisioned, but failed to disclose.” Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 1997). On this record, and having reviewed the ’959 Patent, the ’153 provisional, and the ’406 application, we find no evidence in those documents that the named inventor was in possession of the concept of a radio communications module “configured to utilize a secure identifier” where “the secure identifier compris[es] a specified excitation.” Second, setting aside the “radio communication module” in proposed substitute claim 22, Patent Owner also has not shown that the named inventor was in possession of the feature of a “secure identifier comprising a specified excitation.” Patent Owner’s argument that the ’406 application describes a light beam directed to a particular aircraft (see Reply 4–5) is 2 The same is true of the ’153 provisional. See Ex. 2016 ¶¶ 29, 34. unavailing. The fact that the properties of a particular light beam indicate that the light beam is intended for a particular aircraft does not demonstrate that the light beam is a “secure identifier,” as we have construed that term. Patent Owner has not identified any disclosure in the ’406 application of a “secure identifier” comprising a light beam, let alone that such light beam can be utilized by a “radio communication module.” The only references to “secure” identifiers in the ’406 application describe radio frequency signals. See Ex. 2015, 2:4–6, 15:21–17:12.3 Having reviewed the ’959 Patent, the ’153 provisional, and the ’406 application, we find no evidence in those documents that the named inventor was in possession of the concept of a “secure identifier comprising a specified excitation.”” slip op. at 15

  • ScopeDecided for patent owner

    “not impermissibly broaden the scope of the claims of the ’959 Patent. As Patent Owner suggests, there were no limitations in original claim 21 on the type of radio signal the radio communication module could receive, and so it follows that proposed substitute claim 22 does not now encompass receiving a broader set of radio signals. We see no basis for Petitioner’s argument that the past tense verb “received” limited original claim 21 to “signals of a compatible ‘type’ and ‘range.’” Opp. 7. Moreover, the claim language (with the proposed deletion shown double brackets) provides that “the radio communication module is configured to receive a [[received]] radio signal.” Any radio signal that the radio communications module receives would necessarily be a “received” radio signal. Thus, deleting the redundant word “received” does not enlarge the scope of this claim limitation. We also are not persuaded by Petitioner’s suggestion that removing the term “received” broadens original claim 21 by deleting a requirement that the radio signal have already been previously received by the claimed device. See Sur-reply 9. Original claim 21 simply recited, using redundant language, that “the radio communication module is configured to receive a received radio signal.” Ex. 1001, 18:5–7. The most natural reading of this language is that the phrase “received radio signal” is just a description of a radio signal that is received by the recited radio communications module. Petitioner has cited no persuasive evidence that one of ordinary skill in the art would have counterintuitively interpreted this language to impose an additional requirement that the “received radio signal” must have been received twice—a first time by some other component of the device, and a second time by the recited radio communication module. Accordingly, we determine that the proposed amendment does not improperly broaden claim scope.” slip op. at 10

  • Disclosure Requirements (§112) › Definiteness (Nautilus)IndefiniteNot shown unpatentable

    “572 U.S. 898 (2014). See Memorandum: Approach to Indefiniteness Under 35 U.S.C. § 112 in AIA Post-Grant Proceedings (Jan. 6, 2021).4 Under Nautilus, a claim is indefinite if fails to “inform those skilled in the art about the scope of the invention with reasonable certainty.” 572 U.S. at 910. We agree with Patent Owner that neither of the identified terms are indefinite. Regarding the term “low-altitude aircraft,” we determine the Specification provides a sufficient basis for understanding the scope and meaning of this term with reasonable certainty. The U.S. Court of Appeals for Federal Circuit has explained that, when a term of degree is recited in a claim, it is necessary “to determine whether the patent’s specification provides some standard for measuring that degree.” See Seattle Box Co. v. Indus. Crating & Packing, Inc., 731 F.2d 818, 826 (Fed. Cir. 1984); see also Datamize, LLC v. Plumtree Software, Inc., 417 F.3d 1342, 1350 (Fed. Cir. 2005) (“Some objective standard must be provided in order to allow the public to determine the scope of the claimed invention.”). Here, the Specification describes the related art as including “small UASs (e.g., aircrafts up to 25 pounds flying up to 500 ft of the low altitude airspace).” Ex. 1001, 1:50–52. One of ordinary skill in the art would understand from the Specification that the cited disclosure provides an objective standard for determining the scope of a low-altitude aircraft as one that is designed to fly up to a maximum altitude of about 500 feet.” slip op. at 20

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “In our Institution Decision, we adopted Petitioner’s proposal that one of ordinary skill in the art would have had the following qualifications: [E]ither (1) a Bachelor of Science in Mechanical Engineering, Electrical Engineering, Aerospace engineering, or an equivalent field, as well as at least 2 years of academic or industry experience in the aerospace, avionics, telecommunications, or electronic device manufacturing industry, or (2) at least four years of industry experience in any of the above industries. Paper 13, 5 (citing Pet. 21). Patent Owner has not disputed this formulation; thus, we adopt it for purposes of this Decision. See Paper 13, 10–11 n. 8.” slip op. at 23

  § 103 obviousness§ 112 disclosurecites Graham · Nautilus
  Patents in suitUS 10,713,959
• Charles River Laboratories, Inc. v. Seikagaku CorporationAll claims unpatentable
  PTAB · Sep 8, 2026 · IPR2025-00440 · APJ Tawen Chang · IPR · Final written decision

  Claim 21 is unpatentable as obvious over Mizumura with either the ’498 PCT or McClymont; the Revised Contingent Motion to Amend proposing claim 22 is denied.

  RulingsFinal written decision

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “overlap to a significant degree, i.e., a person with a Ph.D. in a discipline related to biological sciences and having had at least two years of work experience. However, the parties’ proposals differ slightly in the specific subjects in which a POSA would have had a doctoral degree, and whether the person’s work experience must have been directly related to horseshoe crab Factor C. As an initial matter, we find that a rigid requirement as to the subject of a POSA’s doctoral degree (e.g., biochemical engineering, enzymology), or experience working specifically with horseshoe crab proteins, is not consistent with the evidence of record. See, e.g., Ex. 1067, 20:23–21:2 (Dr. Schaefer testifying that the fact the “name of [his] Ph.D. is immunology . . . does not change the fact that the core of [his] thesis training was really in molecular biology”), 22:3–15 (explaining “the fact that the production of proteins recombinantly is mostly species agnostic”); Ex. 1069, 45:20–47:17 (Dr. Morris testifying that whether a person is a POSA depends on the person’s “experience, [ ] publications,” and work done for the Ph.D. rather than the name of the Ph.D. program). We also find that evidence of record supports Petitioner’s assertion that, for purposes of defining a POSA, “[m]ore education could substitute for experience, and vice versa.” See, e.g., Pet. 19; Ex. 1065, 99:14–100:3. with respect to the claims of the ’318 patent would have had a Ph.D. in molecular biology, biochemistry, or a related discipline, and about two years of experience with cloning genes, expressing cloned genes as proteins, and/or characterizing such cloned genes and proteins, with more education being able to substitute for experience, and vice versa. A POSA may also have collaborated with others, including those with specific experience in utilizing or assessing horseshoe crab Factor C for endotoxin detection and quantitation.” slip op. at 13

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

    “C. Claim Construction The parties agree that “the terms in claim 21 can be afforded their plain and ordinary meaning for purposes of this proceeding” without further construction. Pet. 19–20; PO Resp. 11. Because express claim construction is not needed to resolve the issues in this case, we need not, and do not, construe expressly any claim term for purposes of this Decision. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’”) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)).” slip op. at 14

  • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateNot entitled to earlier dateDecided for petitioner

    “Carrying Out the Invention section, that “[t]he Factor C of the present invention is a Factor C derived from a horseshoe crab,” and states later in the same section that “[e]xamples of the horseshoe crab include . . . Limulus polyphemus.” Ex. 1006, 40. However, none of the remaining portions of ’767 application cited by Patent Owner relate directly to L. polyphemus; instead, the remaining portions of ’767 application cited by Patent Owner are directed to other species, in particular the Japanese horseshoe crab T. tridentatus. Further, Patent Owner’s witness, Dr. Schaefer, conceded that the ’767 application does not contain Factor C sequence information for L. polyphemus. See, e.g., Ex. 1067, 44:25–45:23. Although “[n]o length requirement exists for a disclosure to adequately describe an invention,” Falko-Gunter, 448 F.3d at 1365–1366, we are persuaded that a POSA would not, based on the totality of the above disclosures, reasonably understand that the inventors were in possession of the claimed HEK-293 recombinant L. polyphemus Factor C protein, in view of the state of the art as of December 10, 2013. In this regard, we note that adequate written description of a biological molecule, such as a HEK293 recombinant L. polyphemus Factor C protein, requires “more than a mere statement that it is part of the invention and reference to a potential method for isolating it”; instead, what is required is “‘a precise definition, such as by structure, formula, chemical name, or physical properties,’ not a mere wish or plan for obtaining the claimed chemical invention.” The Regents of the” slip op. at 21

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

    “Pfizer, Inc. v. Apotex, Inc., 480 F.3d 1348, 1364 (Fed. Cir. 2007). Neither do we see Petitioner’s arguments regarding the December 10, 2013 priority date to be “mutually opposed” as Dr. Schaefer testified. Ex. 1067, 216:4– 24. Instead, we credit evidence of record, including Dr. Jain’s testimony and the February 22, 2018 Mizumura Declaration, that existence of the full sequence would permit a more complete analysis and that such an analysis would provide a POSA with a reasonable expectation that the claimed L. polyphemus recombinant protein would have a residual activity within the claimed range. See, e.g., Ex. 1029, 2–5; Ex. 1010, 48; Ex. 1065, 117:14– 130:24 (explaining that comparison of partial sequences in the Tokunaga 1991 publication showed “difference around the cleavage site” between T. tridentatus and L. polyphemus but comparison of the full sequence revealed that “the catalytic triad of histidine, serine, aspartate . . . to be more similar between Tachypleus and Limulus”). Patent Owner asserts that “Petitioner’s reliance on a statement made by Dr. Mizumura in a declaration submitted during prosecution of the ’767 Application fails to fill the gap in the analysis” regarding reasonable expectation of success, because the declaration “offers no evidence of the percentage of conserved amino acid substitutions that exist to support the conclusion that a POSA would have expected residual activity to be maintained between Tachypleus tridentatus and Limulus polyphemus” PO Resp. 47. However, as noted above, Dr. Mizumura provides an alignment of Factor C proteins from the two different species of horseshoe crab, determines that the similarity between the amino acid sequence is 99.5%, states that the amino acid residues that can undergo N-type sugar chain that L. polyphemus, like T. tridentatus, would also be less susceptible to inhibition by ions. Ex. 1029, 4–5. For the reasons discussed above, we also disagree with Patent Owner’s assertion that Petitioner’s reasonable expectation of success argument is “nothing more than conclusory assertions with no support.” PO Resp. 46. Rather, we find Petitioner has shown, by a preponderance of the evidence, that a POSA would have had reason to combine the teachings of Mizumura and the ’498 PCT, with a reasonable expectation of success in arriving at the Factor C protein recited in claim 21.” slip op. at 38

  Patent outcomesUS 11,236,318 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham
  Patents in suitUS 11,236,318
• Embody, Inc. / Zimmer Biomet Holdings, Inc. v. Lifenet HealthSome claims unpatentable
  PTAB · Aug 4, 2026 · IPR2025-00249 · APJ Michael J Fitzpatrick · IPR · Final written decision

  Claims 1 and 4–8 are unpatentable: claims 1 and 4–6 as obvious over Huang2 and Kuo, and claims 7–8 as anticipated by Huang2; claims 2–3 were not shown unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for patent owner

    “(“POSITA”) “would be a Ph.D. student with a minimum of two years of experience in their faculty advisor’s laboratory” and would have an understanding of “electrospinning fibers, including for tissue engineering, tissue engineering techniques, and using/performing FFT analysis.” Pet. 20– 21 (citing Ex. 1003 § II.C7). Patent Owner does not dispute Petitioner’s proposal but specifies the set of disciplines within which the Ph.D. would have been earned, namely “bioengineering, chemical engineering, mechanical engineering, or a related engineering discipline.” PO Resp. 6. We adopt and apply Petitioner’s proposal as clarified by Patent Owner regarding the Ph.D. discipline.” slip op. at 7

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

    “At the outset, we agree with Patent Owner that the Specification purports to define “major peaks” in the following sentence: “The ‘major peaks’ herein refer to peaks higher than the average of the peaks in the result.” Ex. 1001, 13:28–29. We determine that this language satisfies at least two of the criteria set forth in Alnylam. Specifically, the sentence at “refers to” to explain what qualifies as major peaks. That is not the end of the inquiry, however, as we find there is still some ambiguity as to whether the patentee intended to define “major peaks” so as to require so-called “minor peaks” in the claimed invention. See Bell Atlantic, 262 F.3d at 1268 (“[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.”). Importantly, the Specification does not treat the existence of minor peaks as prerequisites for the existence of major peaks. Indeed, the Specification does not discuss “minor peaks” at all. See generally Ex. 1001. Likewise, none of the claims of the ’227 patent, whether challenged or unchallenged, recites “minor peaks” or any additional peaks beyond the disputed “major peaks.” Id. at 23:30–24:42. Nor does the Specification include an example of FFT analysis results in which the average of the peaks therein is calculated and those higher than the average are identified as major peaks.8” slip op. at 9

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

    “Petitioner has the better position. Huang2 teaches crosslinking and provides a reason for doing so (stability). In particular, Huang2 states: “To better mimic skin ECM, electrospun collagen fibers have been fabricated, however, the rapid degradation and poor mechanical properties determine that either crosslinking or combination with other materials is necessary to obtain a stable scaffold.” Ex. 1005, 1791 (emphasis added). It is true that, in describing work actually carried out, Huang2 states that blending with PCL was performed and does not mention crosslinking. See id. at 1792 (“Nanofibrous matrices of PCL and Collagen at a weight ratio of 3:1 were fabricated using electrospinning as previously described.”). However, the prior art – here, Huang2 – is not limited to that which it describes having created. See In re Mills, 470 F.2d 649, 651 (C.C.P.A. 1972) (“a reference is not limited to the disclosure of specific working examples”); see also In re Lemelson, 397 F.2d 1006, 1009 (CCPA 1968) (“The use of patents as references is not limited to what the patentees describe as their own inventions or to the problems with which they are concerned. They are part of the literature of the art, relevant for all they contain.”); In re Fritch, 972 F.2d 1260, 1264 (Fed. Cir. 1992) (“It is well settled that a prior art reference is relevant for all that it teaches to those of ordinary skill in the art.”). Huang2 teaches two stabilization methods when using collagen in scaffolds. Huang2 states that one or the other “is necessary to obtain a stable scaffold” (when using collagen), but it does not preclude or teach away from using Patent Owner-cited testimony of Dr. Mikos is not as definitive as Patent Owner suggests; Dr. Mikos’s testimony is that a person of ordinary skill in the art “typically would not have done both.” Ex. 2015 ¶64 (emphasis added). The bottom line is that Huang2 teaches the person of ordinary skill in the art two ways to stabilize scaffolds/matrices comprised of collagen, provides a reason for doing so (stability), and does not teach away from using both. We are persuaded that a “scaffold comprising crosslinked fibers comprising collagen” would have been obvious in view of the cited teachings of Huang2.” slip op. at 33

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

    “We are not persuaded by Appellant’s citations to either reference. As discussed above, Petitioner’s Ground 1 is premised on a person of ordinary skill in the art altering the native flat sheet structure of Huang2 by rolling it into a jelly-roll structure as taught by Kuo. See Pet. 41 (Beginning its claim 2 arguments with the following: “Claim 1 is obvious for the reasons expressed above in § X.A., supra, which are incorporated herein.”); see also Pet. Reply 17 (“[B]ased on the explicit teaching of Kuo, a POSA would have been motivated to take the electrospun flat scaffold made by the techniques of Huang2, seed it with the desired cells, and roll it to treat a tendon and ligament.” (emphasis added)). Indeed, the paragraphs of Kuo that Petitioner cites for disclosing “scaffold sheets,” explicitly describe rolling them into jelly-roll like structures. See Ex. 1018 ¶7 (stating that “the sheet is spirally contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct”), ¶22 (describing a method comprising “forming a tissue construct by contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct” and implanting it in a patient). Petitioner fails to argue that that “one or more elongated sheets” recited in claim 2 would encompass the rolled structure of its proposed modification. Nor does Petitioner articulate a claim construction argument that could support such an argument. Petitioner has failed to prove, by a preponderance of the evidence, that claim 2 would have been obvious over Huang2 and Kuo.” slip op. at 42

  Patent outcomesUS 11,318,227 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Markman · KSR
  Patents in suitUS 11,318,227
• Embody, Inc. / Zimmer Biomet Holdings, Inc. v. Lifenet HealthAll claims unpatentable
  PTAB · Aug 4, 2026 · IPR2025-00248 · APJ Michael J Fitzpatrick · IPR · Final written decision

  Claims 1–3 and 5–12 are unpatentable as anticipated by Huang2; claim 4 is unpatentable as obvious over Huang2 and Kumbar. Lee grounds failed.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “understanding of “electrospinning fibers, including for tissue engineering, tissue engineering techniques, and using/performing FFT analysis.” Pet. 18– 19 (citing Ex. 1003 § II.C5). Patent Owner does not dispute Petitioner’s proposal but specifies the set of disciplines within which the Ph.D. would have been earned, namely “bioengineering, chemical engineering, mechanical engineering, or a related engineering discipline.” PO Resp. 5–6. We adopt and apply Petitioner’s proposal as clarified by Patent Owner regarding the Ph.D. discipline.” slip op. at 7

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

    “A patentee “may choose to be his own lexicographer and use terms in a manner other than their ordinary meaning, as long as the special definition of the term is clearly stated in the patent specification or file history.” Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996) (citing Hoechst Celanese Corp. v. BP Chemicals Ltd., 78 F.3d 1575, 1578 (Fed. Cir. 1996)); see Markman v. Westview Instruments, Inc., 52 F.3d 967, 980 (Fed. Cir. 1995) (en banc) (“[A]ny special definition given to a word must be clearly defined in the specification.”), aff'd, 517 U.S. 370 (1996); CCS Fitness, Inc. v. Brunswick Corp., 288 F.3d 1359, 1366 (Fed. Cir. 2002). “[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.” Bell Atlantic Network Services, Inc. v. Covad Communications Group, Inc., 262 F.3d 1258, 1268 (Fed. Cir. 2001). Among the criteria to consider in whether the patentee acted as a lexicographer to define a claim term include (a) whether the patent specification included the statement in question under a section for marks, (c) whether the sentence uses the term “refer to,” which generally “conveys an intent for [that sentence] to be definitional,” and (d) whether there are other non-limiting terms (e.g., “for example,” or “include”) that contradict a definitional intent. Alnylam Pharms., Inc. v. Moderna, Inc., 138 F.4th 1326, 1333 (Fed. Cir. 2025) (alteration in original). At the outset, we agree with Patent Owner that the Specification purports to define “major peaks” in the following sentence: “The ‘major peaks’ herein refer to peaks higher than the average of the peaks in the result.” Ex. 1001, 13:6–7. We determine that this language satisfies at least two of the criteria set forth in Alnylam. Specifically, the sentence at issue sets out “major peaks” in quotation marks, and then uses the term “refers to” to explain what qualifies as major peaks. That is not the end of the inquiry, however, as we find there is still some ambiguity as to whether the patentee intended to define “major peaks” so as to require so-called “minor peaks” in the claimed invention. See Bell Atlantic, 262 F.3d at 1268 (“[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.”).” slip op. at 8

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

    “As discussed above, we agree with Patent Owner that the sentence it cites from the Specification of the ’223 patent bears sufficient hallmarks of lexicography. However, the Specification nonetheless lacks any indication that so-called “minor peaks” are a necessary component of the claimed invention. “Although it is firmly settled that an applicant may act as a 9 Figure 8B does not contain “major peaks” despite clearly depicting two “peaks higher than the average of the [three or possibly four] peaks in the result” because none of the peaks is a reflection of fiber alignment. 10 After presenting claim construction arguments based on Ayres 2008, Patent Owner confusingly states: “Finally, whether Ayres-2008 supports [Patent Owner’s] construction is irrelevant.” PO Sur-Reply 5 (emphasis added). definition that is contrary to the ordinary meaning of a claim term unless it communicates a deliberate and clear preference for this alternative definition.” Kumar v. Ovonic Battery Co., 351 F.3d 1364, 1368 (Fed. Cir. 2003). There is no indication that the patentee sought to require “minor peaks” within the scope of the claimed invention. Nor are we persuaded that a person of ordinary skill in the art would readily understand the scope of the term “major peaks” to require non-major peaks. We interpret the Specification’s statement that “‘major peaks’ herein refer to peaks higher than the average of the peaks in the result” (Ex. 1001, 13:6–7) to be teaching a person of ordinary skill in the art how to identify or discern “major peaks,” which indicate a principal axis of alignment, from any non-major peaks, which would be caused by something else. We conclude that a person of ordinary skill in the art would consider “major peaks” as used in the ’223 patent as referring to peaks that reflect the sole axis or primary axis of fiber alignment. See, e.g., id. at code (54) (“ALIGNED FIBER AND METHOD OF USE THEREOF”), code (57) (“A scaffold comprising an aligned fiber.”), 1:6–7 (“The invention relates to an aligned fiber and method of use thereof.”), 1:11–12 (“The invention relates to a scaffold comprising an aligned fiber.”), 13:16–17 (“Alignment of the fibers in the scaffold may be measured by a fast Fourier transform (FFT) analysis.”). This would certainly include peaks materially higher than the average of the peaks in the result, but it would not be limited to situations involving peaks of different heights or require so-called minor peaks. Based on the totality of the evidence before us, we do not construe the claims to require non-major peaks.” slip op. at 16

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

    “Petitioner argues that, for the aligned sample, a major peak occurs at about 90° as identified by Petitioner’s annotation (red arrow). Pet. 30–31. As support, Petitioner directs us to Huang2’s explicit description of what the peak indicates, namely that “[t]he narrow peak of the normalized intensity values in anisotropic [aligned] matrices (Figure 1C) indicated that PCL/Coll nanofibers aligned along a single axis (Fig. 1B).” Id. at 31 (alterations in original) (quoting Ex. 1005, 1794). Patent Owner disputes that the illustrated peak is a major peak solely based on the lack of any lesser peaks. See PO Resp. 13 (“[T]he height of the sole peak is identical to—not higher than—the average height of the peaks in the result.”). As discussed above, however, we do not construe “major peaks” as requiring the existence of non-major peaks. We find that the illustrated peak in the Aniso plot of the FFT analysis results (Figure 1C) is a major peak within the meaning of the claim. The evidence in support of this finding is overwhelming. First, the term “Aniso” as used in Huang2 refers to fibers “with alignment.” Ex. 1005, 1792. Huang2 describes fabricating such matrices of aligned fibers with electrospinning, the same method used to impart alignment in the ’223 patent. Id. at 1791–92. Huang2 visually confirms that the fibers in fact are aligned via scanning electron microscopy. Id. at Fig. 1B. Further, Huang2 explicitly states that the peak illustrated in the Aniso plot of the FFT analysis results (Figure 1C) is caused by the fact that the “PCL/Coll nanofibers aligned along a single axis (Fig. 1B).” Id. at 1794. This is precisely what electrospinning may yield aligned fibers and images of aligned fibers will yield FFT results with major peaks. Ex. 1001, 2:18–19, 4:46–60, 13:16–26. Additionally, Huang2 itself considers the peak illustrated in the Aniso plot of the FFT analysis to be significant, stating: “In contrast [to the Aniso plot], the lack of a significant peak for the fibers collected on a stationary surface [(i.e., without electrospinning)] demonstrated no preferred fiber orientation in the isotropic matrices” (i.e., the Iso plot). Ex. 1005, 1794. Indeed, the asserted major peak in the Aniso plot shown in Huang2’s Figure 1C is higher than any other data point on the plot. For these reasons, we find the peak to be a major peak.15 Petitioner acknowledges that Figure 1C only reports its results” slip op. at 32

  Patent outcomesUS 10,137,223 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Markman
  Patents in suitUS 10,137,223

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.