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  • PTAB · Sep 14, 2026 · IPR2025-00698 · APJ Kevin W Cherry · IPR · Final written decision

    Claims 1–11, 18–20, 23–25, and 28 are unpatentable as obvious over the two combinations of prior art.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Thus, we adopt Petitioner’s articulation of the level of ordinary skill in the art, which is consistent with the ’539 patent and the asserted prior art, and we apply it in our obviousness analysis below.” slip op. at 9

    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “¶ 39). Petitioner further relies on Stokes to teach an average particle size that preferentially scatter blue . . . LED light as compared to yellow . . . light from the luminescent material.” Id. at 26–27 (citing Ex. 1108, 7:1–4). Petitioner argues that “a POSA would have been motivated to apply this principle to Krummacher, because it would increase the conversion of blue light to yellow light and improve the uniformity of the light source.” Id. at 27 (citing Ex. 1102 ¶ 237). Petitioner notes that “[c]onversion of blue light to yellow light is improved by maximizing the scattering of blue light.” Id. In addition, Petitioner asserts that “[u]niformity is improved by preferentially scattering the concentrated light from the blue-light LED chip instead of the disperse light emitted by the phosphor.” Id. at 28 (citing Ex. 1102 ¶ 237). Petitioner contends that “[a] POSA would have had a reasonable expectation of success applying this principle to Krummacher, because the relevant particle size range includes the range disclosed by Krummacher.” Id. Petitioner argues that “[a] POSA would have recognized selecting an average particle size as a design decision to be made based on a number of factors, including the light scattering properties of the particles, and well within the skill of the art.” Id. (citing Ex. 1102 ¶ 238). We find this explanation and the supporting testimony of Dr. Doolittle well-reasoned and supported and entitled to significant weight. Thus, we find that Petitioner has shown by a preponderance of the evidence that the combination of Krummacher and Stokes teaches limitation 1[c], and that a person of ordinary skill in the art would have been motivated to combine the references in the manner proposed.” slip op. at 40

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

      “¶ 39). Petitioner further relies on Stokes to teach an average particle size that preferentially scatter blue . . . LED light as compared to yellow . . . light from the luminescent material.” Id. at 26–27 (citing Ex. 1108, 7:1–4). Petitioner argues that “a POSA would have been motivated to apply this principle to Krummacher, because it would increase the conversion of blue light to yellow light and improve the uniformity of the light source.” Id. at 27 (citing Ex. 1102 ¶ 237). Petitioner notes that “[c]onversion of blue light to yellow light is improved by maximizing the scattering of blue light.” Id. In addition, Petitioner asserts that “[u]niformity is improved by preferentially scattering the concentrated light from the blue-light LED chip instead of the disperse light emitted by the phosphor.” Id. at 28 (citing Ex. 1102 ¶ 237). Petitioner contends that “[a] POSA would have had a reasonable expectation of success applying this principle to Krummacher, because the relevant particle size range includes the range disclosed by Krummacher.” Id. Petitioner argues that “[a] POSA would have recognized selecting an average particle size as a design decision to be made based on a number of factors, including the light scattering properties of the particles, and well within the skill of the art.” Id. (citing Ex. 1102 ¶ 238). We find this explanation and the supporting testimony of Dr. Doolittle well-reasoned and supported and entitled to significant weight. Thus, we find that Petitioner has shown by a preponderance of the evidence that the combination of Krummacher and Stokes teaches limitation 1[c], and that a person of ordinary skill in the art would have been motivated to combine the references in the manner proposed.” slip op. at 40

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

      “Finally, we do not agree with Patent Owner that “quantum efficiency” would have dissuaded a person of ordinary skill from making the combination. PO Resp. 36–38. To begin with, “[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 784, 800 (Fed. Cir. 2021). Here, as demonstrated by, at least, Shimizu and Stokes, blue LEDs in this wavelength range were known to work as light sources for white-light LEDs. See Pet. 30–31. Additionally, we find persuasive Petitioner’s evidence that a person of ordinary skill in the art would not have been concerned solely with quantum efficiency, but also with overall luminous efficacy of a complete white LED package. Reply 9. As Dr. Schubert’s textbook explains, A fundamental drawback of UV pumped white LEDs is the energy loss (Stoke’s shift). The potential luminous efficacy of UV pumped white LED lamps is, therefore, markedly lower than that of white sources based on a blue LED exciting a yellow phosphor. Ex. 2014, 358–59; see also Ex. 1148, 87:5–88:4 (acknowledging Stokes shift). Thus, the evidence shows that, whatever gain in quantum efficiency a lower wavelength might offer, there were other drawbacks that a person of ordinary skill would have to balance. But “a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.” Medichem, 437 F.3d at 1165. Indeed, Petitioner has shown several references—including, Shimizu and Stokes—that made this tradeoff. Moreover, “[o]bviousness does not require absolute predictability of success. . . . [A]ll that is required is a reasonable expectation of success.” In re O’Farrell, 853 F.2d 894, 903–04 (Fed. Cir. 1988). We find that the prior art of record demonstrates that a person of ordinary skill in the art at the time of the invention would have such an expectation in making the combination of Krummacher, Stokes, and Shimizu. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that there would have been motivation to combine Krummacher, Stokes, and Shimizu with a reasonable expectation of success.” slip op. at 43

    Patent outcomesUS 8,614,539 unpatentable
    § 103 obviousnesscites Phillips · Graham
    Patents in suitUS 8,614,539
  • PTAB · Jul 13, 2026 · IPR2025-00153 · APJ Carl M Defranco · IPR · Final written decision

    Claims 1–30 are unpatentable as obvious under § 103 over the asserted combinations of prior art.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “understanding of one of ordinary skill in the art at the time of the invention. Tesla submits that one of ordinary skill in the art would have had at least a bachelor’s degree in electrical or mechanical engineering (or an equivalent field) and at least two years of work experience involving automotive systems, including electric vehicle power management. . . . Additional industry 1 US 2009/0313034 A1, pub. Dec. 17, 2009 (Ex. 1004, “Ferro”). 2 EP 1,920,968 A1, pub. May 14, 2008 (Ex. 1005, “Oyobe”). 3 US 7,124,691 B2, iss. Oct. 24, 2006 (Ex. 1006, “Donnelly”). 4 Steven E. Letendre, The V2G Concept: A New Model for Power? PUBLIC UTILITIES FORTNIGHTLY, Feb. 15, 2002, at 16 (Ex. 1007, “Letendre”). 5 US 5,654,621, iss. Aug. 5, 1997 (Ex. 1078, “Seelig”). 6 US 6,662,083 B1, iss. Sep. 16, 2003 (Ex. 1010, “Knockeart”). experience or technical training may offset less formal education, while advanced degrees or additional formal education may offset lesser levels of industry experience. Pet. 2 (citing Ex. 1003 ¶¶ 14–15). Charge Fusion “takes no position with respect to Petitioner’s proposed level of ordinary skill.” PO Resp. 17. For purposes of our analysis, we apply Tesla’s proposed level of ordinary skill, which we find to be consistent with the problems addressed in the ’987 patent and the prior art. B. Claim Interpretation” slip op. at 6

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

      “1. “dynamic attribute of an electric charge provider” In the Petition, Tesla proposes that we construe “dynamic attribute of an electric charge provider,” as recited in every independent claim, to mean “a changing or otherwise fluctuating cost (or price) of electricity for purchase from an electric charge provider.” Pet. 4–5. Charge Fusion responds that Tesla improperly narrows the meaning of this claim limitation. PO Resp. 15 (arguing this claim term “is not just limited to ‘changing or otherwise fluctuating cost (or price)’ as alleged by the Petition” (emphasis added)). Although we consider Tesla’s proposed construction to identify an exemplary “dynamic attribute of an electric charge provider,” we see no need to limit the meaning of this limitation as proposed by Tesla. Indeed, Tesla agrees. See Pet. Reply. 7 (arguing only that this claim limitation “at least includes” such an example). And Charge Fusion does not contend otherwise. See PO Resp 15 (arguing only that this limitation “is not just limited to” cost fluctuations). As such, we see no need to further construe this claim limitation. 2. “determine . . . a charging schedule for the vehicle” Limitation 1[g] recites “determine, based at least on the one or more charging preferences and at least one current value of a dynamic attribute of an electric charge provider, a charging schedule for the vehicle.” Independent claim 8, 15, and 22 recite a materially identical limitation. Tesla submits that this limitation should not be construed as a means-plus- function limitation under 35 U.S.C. § 112(6). See Pet. 5. Charge Fusion agrees that “nothing in the claim invokes [§] 112(6).” PO Resp. 16. As such, we discern no dispute regarding the meaning of this claim limitation.” slip op. at 8

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

      “Initially, we note that, as claimed, there is no express restriction on the manner in which the “amount” or “charge” is specified or otherwise expressed. Indeed, the Specification uses both “desired charge percent level” and “desired charge range level” as alternative ways for a user to specify an “amount of charge.” Ex. 1001, 14:53–15:8 (emphases added). The Specification defines “desired charge range level” as meaning “a desired distance to travel.” Id. at 15:3–8. Elsewhere, the Specification describes that a user may specify the amount of charge as follows: “the user may indicate a desired charging level (and/or a desired charging level may be automatically calculated) based on a desired distance of travel.” Id. at 19:49–57 (emphasis added). More specifically, annotated Figure 7 of the ’987 patent, reproduced below, demonstrates how a user may select “amount of charge” in terms of a desired mileage range 720 or a percentage level 718. See Pet. Reply 2. As shown in red, annotated Figure 7 illustrates that a user selects “desired charge level 720” on “vehicle charge indicator 714” by moving a slider to a value specified in “miles” (e.g., 110 miles). The Specification, after discussing selecting a desired charge percent level 718, explains: The user may also or alternatively view and/or change the desired charge range level 720. An estimate of how far the vehicle can travel on a given charge amount (which may be a general average and/or may be computed based on a specific itinerary and/or past driving habits) can be determined, for example, and utilized to express the desired charge level in terms of distance capable of being traveled. In such a manner, for example, a user may determine a desired distance to travel (e.g., how far it is from home to work or vice versa) and may set the desired charge range level 720 to match the desired distance. Ex. 1001, 14:65–15:8. Thus, the Specification confirms that “amount of charge” may be expressed in terms of a desired mileage as well as a desired percentage level.” slip op. at 11

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

      “We disagree. Charge Fusion’s reliance on Wonderland is misplaced and does not support the proposition for which it is cited. In Wonderland, the district court denied the accused infringer’s motion for summary judgment of invalidity, in part, because genuine issues of material fact existed as to whether there was sufficient motivation to combine the prior art. Wonderland, 988 F. Supp. 2d at 511. As such, the district court’s Wonderland decision does not constitute a final ruling on the motivation to combine issue, and the Federal Circuit’s summary affirmance of the district court’s ruling neither addresses the issue nor reflects how the issue was resolved at trial. See Wonderland NurseryGoods Co. v. Thorley Indus., LLC, 644 F. App’x 1011 (Fed. Cir. 2016). Moreover, contrary to Charge Fusion’s assertion, Tesla correctly notes that although Ferro refers to wireless charging, it provides no implementation details. Ex. 1004 ¶ 36; Ex. 2006, 54:8–55:9. Nonetheless, Ferro does describe manual options for initiating charging, and Tesla’s expert credibly testifies that one of ordinary skill in the art would have been motivated to apply Oyobe’s vehicle sensor to allow a user to initiate Ferro’s charging methods more easily without having to leave the vehicle. See Ex. 1003 ¶¶ 146, 151, 152 (citing Ex. 1004 ¶ 109). Accordingly, we find that Tesla establishes that one of ordinary skill in the art would have been motivated to incorporate Oyobe’s use of a sensor to establish presence of a vehicle near a charging station into Ferro’s system.” slip op. at 17

    Patent outcomesUS 11,631,987 unpatentable
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 11,631,987
  • PTAB · Jul 13, 2026 · IPR2025-00152 · APJ Carl M Defranco · IPR · Final written decision

    Claims 1–17 are unpatentable as obvious: claims 1–4, 6–9, and 11–14 over Sutardja, Donnelly, and Letendre; claims 5, 10, and 15 with Seelig; claims 16 and 17 with Knockeart.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “understanding of one of ordinary skill in the art at the time of the invention. Tesla submits that one of ordinary skill in the art would have had at least a bachelor’s degree in electrical or mechanical engineering (or an equivalent field) and at least two years of work experience involving automotive systems, including electric vehicle power management. . . . Additional industry experience or technical training may offset less formal education, 1 US 2008/0136371 A1, pub. Jun. 12, 2008 (Ex. 1011, “Sutardja”). 2 US 7,124,691 B2, iss. Oct. 24, 2006 (Ex. 1006, “Donnelly”). 3 Steven E. Letendre, The V2G Concept: A New Model for Power? PUBLIC UTILITIES FORTNIGHTLY, Feb. 15, 2002, at 16 (Ex. 1007, “Letendre”). 4 US 5,654,621, iss. Aug. 5, 1997 (Ex. 1078, “Seelig”). 5 US 6,622,083 B1, iss. Sep. 16, 2003 (Ex. 1010, “Knockeart”). while advanced degrees or additional formal education may offset lesser levels of industry experience. Pet. 2–3 (citing Ex. 1003 ¶ 29). Charge Fusion “takes no position with respect to Petitioner’s proposed level of ordinary skill in the art.” PO Resp. 9. For purposes of our analysis, we apply Tesla’s proposed level of ordinary skill, which we find to be consistent with the problems addressed in the ’788 patent and the prior art. B. Claim Interpretation” slip op. at 6

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

      “shown in Figure 7 of the ’788 patent. Pet. 4–5. Charge Fusion responds that Tesla’s proposed construction should be rejected because it “wrongly import[s] embodiments from the specification.” PO Resp. 14–16. We discern no dispute over the meaning of “unitary vehicle charge indicator” because, contrary to what Charge Fusion argues, Tesla does not contend that this limitation is “required to be limited to” the bar graph embodiment of Figure 7, only that it “at least includes” that embodiment. Compare Pet. 5, with PO Resp. 14–16. Tesla also argues that the “first” and “second” portions of the unitary vehicle charge indicator—which indicate the charged and uncharged capacities of the battery—recite merely “communicative content,” and thus, are “not entitled to any patentable weight” because they are directed to nonfunctional printed matter. Pet. 5–7 (citing various case law). At the same time, however, Tesla maintains that “[r]egardless, Donnelly teaches a bar graph indicating the amount of charge and uncharged capacity.” Pet. Reply 11–12 (citing Pet. 33–34); see also Hrg. Tr. 74:22–25, 75:9–11. For reasons expressed below, we agree that Tesla persuasively demonstrates that the asserted combination teaches the “unitary vehicle charge indicator element” as claimed and construed by Charge Fusion. Accordingly, we need not decide the printed matter issue.” slip op. at 8

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

      “Initially, we note that, as claimed, there is no express restriction on the manner in which the “amount” or “charge” is specified or otherwise expressed. Indeed, the Specification uses both “desired charge percent level” and “desired charge range level” as alternative ways for a user to specify an “amount of charge.” Ex. 1001, 14:63–15:18 (emphases added). In particular, the Specification defines “desired charge range level” as meaning “a desired distance to travel.” Id. at 15:8–18. Elsewhere, the Specification describes that a user may specify the amount of charge as follows: “the user may indicate a desired charging level (and/or a desired charging level may be automatically calculated) based on a desired distance of travel.” Id. at 19:59–67 (emphasis added).” slip op. at 9

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

      “full charge” for the battery, and thus, Tesla fails to explain how the combination of Sutardja with Donnelly’s battery bar graph image “would allow a user to select a specific amount of charge or how this would result in a unitary vehicle charge indicator,” as claimed. PO Resp. 30. According to Charge Fusion, “[l]imiting the single option of ‘full charge’ as described in Sutardja would defeat the purpose of implementing a slider” as taught by Donnelly. Id. (citing Ex. 2008 ¶ 72). We disagree. Charge Fusion’s argument rests on the mistaken premise that Sutardja only contemplates selecting a full amount of charge for the battery and not an amount below a full charge, i.e., a partial charge. But that is not what Sutardja says. More accurately, Sutardja teaches that the user specifies the amount of charge—"The user interface module 108 may comprise a key pad, a display, a microphone, and/or a speaker (all not shown). A user of the vehicle 102-1 may use the user interface module 108 to set charging parameters for charging the battery 14.” Ex. 1011 ¶ 243. Elsewhere, Sutardja teaches that the user may set a “predetermined level” of charge— The charge monitoring module 150 may inform the control module 112 when the battery 14 is charged to a predetermined level (e.g., full charge) that may be indicated in the charging parameters. Subsequently, the charge monitoring module 150 may stop charging the battery 14 by deactivating the converter 156 and the charging module 152. The power meter 24 may measure the amount of power received from the utility company 23 during the charging operation. Id. ¶ 270 (emphases added). Although that passage indicates that a “full charge” is an example of a “predetermined level” of charge, nowhere does it exclude the selection of a lesser amount. Indeed, the passage contemplates the ability to “stop charging the battery,” which indicates that selection of the predetermined level may be less than a full charge. Id. Thus, we are not persuaded by Charge Fusion’s argument to the contrary. Rather, in our view, Tesla demonstrates by a preponderance of the evidence that the Sutardja-Donnelly combination teaches a “unitary vehicle charge indicator” that includes at least “first” and “second” portions and that one of ordinary skill in the art would have had reason to successfully combine their respective teachings in a manner that allows a user to predetermine, i.e., specify, an amount of charge. slip op. at 17

    Patent outcomesUS 11,990,788 unpatentable
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 11,990,788
  • PTAB · Jun 17, 2026 · IPR2025-00109 · APJ Bach V Hoang · IPR · Final written decision

    Claims 1–24 were not shown unpatentable because the petitioner failed to establish motivation to combine the references and failed to show the claimed different-distance image capture.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Having considered the full record at trial, we maintain the preliminary finding regarding the level of ordinary skill in the art. See Inst. Dec. 11–12. In particular, based on the teachings of the ’910 Patent and the asserted prior art, we are persuaded that an ordinarily skilled artisan would have had a work experience related to biometrics, facial authentication, computer vision, and/or optics as at least one of those fields is respectively implicated by the ’910 Patent and the asserted prior at. Moreover, our decision would be the same under either proposed level of skill.” slip op. at 10

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

      “C. Claim Construction We interpret claim terms using “the same 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 the principles set forth by the Federal Circuit, the “words of a claim ‘are generally given their ordinary and customary meaning,’” as would be understood by a person of ordinary skill in the art at the time of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed. Cir. 2005) (en banc) (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). The parties do not dispute any claim terms or phrases and our decision does not require construing any particular claim terms or phrases, therefore, we do not expressly construe any particular claim term or phrase. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (noting that “we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy’”” slip op. at 10

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

      “We find that these reasons would not have adequately motivated a person having ordinary skill in the art to combine and modify the references in Petitioner’s asserted manner to reach the claimed features. Petitioner’s motivations — “substitution,” “obvious alternative . . . approaches,” “use of a known technique,” and “complimentary” techniques — are all similarly based on swapping or adding techniques for verifying three dimensionality. See Pet. 13–17; Pet. Reply 16–17. Those motivations might have been suitable had Tanii described techniques to verify three dimensionality, but Petitioner has not shown that Tanii describes any technique to verify three dimensionality. See Pet. 13–17, 25–28. Instead, as discussed above, Tanii describes the existence of the perspective distortion phenomenon and a technique for correcting it. As such, substituting the knowledge that perspective distortion exists and techniques to correct it does not correspond adequately motivate Petitioner’s combination. Put another way, because Tanii does not teach an approach for verifying three-dimensionality, Tanii’s techniques cannot be used as a substitute for approaches that do verify three dimensionality simply because Tanii discloses the concept of perspective distortion.” slip op. at 16

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

      “distance from the user. Derakhshani teaches two different approaches (1) focus-distance approach and (2) parallax approach. Petitioner acknowledges that the focus-distance approach does not expressly disclose capturing a second image at a second distance. Pet. 13 (distinguishing “focus distances” from “actual distances.”). This is because focus-distance, by definition, is not actual distance. Ex. 1005, 16:47–48 (“Focus distance is the distance from a sensor to a point in its field of view that is perfectly in focus.”) In Derakhshani’s focus-distance approach the camera stays the same distance from its subject—only the focus distance changes. Id. at 16:66–17:2 (“By comparing degree of focus for a landmark in images with different focus distances, the distance from the sensor to the landmark may be estimated.”) Derakhshani’s parallax approach also does not expressly disclose capturing a second image at a second distance. In the parallax approach the camera is rotated or slid about the user to create images with different perspectives. Ex. 1005, 17:59–64 (“In some implementations, the sensor is moved about the subject during image capture to collect image data from different orientations relative to the subject. For example, a single camera may be rotated or slid slightly or multiple cameras at different positions may be used for image capture.”). Rotating a camera around a user does not change the distance of the camera from the user. At the hearing Petitioner, indicating that Derakhshani takes a second image at a second distance. Tr. 16:9–12 (“[Petitioner’s Counsel: . . . Dr. Daft is talking about some of the terms that Derakhshani is using. For example, the term slid and shown in the images, he talks about how slid refers to the different distances between the sensor and the user.”). We determine that it is more likely that the word “slid,” as used in the relevant portion of Derakhshani, further describes the rotation of the camera about the user. Derakhshani indicates as much by describing that both rotating and sliding the camera are examples of how the camera sensor is “moved about the subject during image capture.” Ex. 1005, 17:60–61. Thus, sliding the camera does not necessarily disclose moving the camera to a second distance from the subject. Zhang also does not expressly disclose capturing a second image at a second distance. Petitioner acknowledges as much stating “[a]lthough Zhang does not expressly say that the second image is captured at a second distance different from the distance of the first image, this would have been obvious to a POSITA.” Pet. 61 (citing Ex. 1003 ¶ 1046). Because Zhang does not expressly disclose capturing a second image at a second distance, Petitioner once again relies on expert testimony to argue that the multiple images disclosed in Zhang would have been taken at different perspectives resulting from rotating or translating the position of the camera and that taking images at different distances would have enhanced Zhang’s homography-transformation procedure. Pet. 61–62 (citing Ex. 1003 ¶ 1046). From here Petitioner repeats many of the same arguments it made regarding the parallax approach from Derakhshani, except that these arguments are on even weaker footing because Zhang does not mention taking images by translating the position of the camera, nor even that the multiple images taken should be from different perspectives. Each of these assertions are made solely on the basis of Petitioner’s expert testimony, and as such are not persuasive. Pet. 61–62 (citing Ex. 1003 ¶¶ 1046). Petitioner’s argument that Zhang teaches capturing a second image at a second distance simply lacks sufficient support from Zhang’s disclosure.” slip op. at 25

    Patent outcomesUS 11,874,910 not shown unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 11,874,910
  • Jumio Corp. v. Facetec, Inc.No claims unpatentable
    PTAB · Jun 17, 2026 · IPR2025-00108 · APJ Nabeel U Khan · IPR · Final written decision

    Claims 1–24 were not shown unpatentable because the asserted combinations lacked adequate motivation to combine and did not teach capturing images at different distances.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Patent Owner argues Petitioner’s proffered level of skill is too broad with respect to work experience. PO Resp. 27–28. Patent Owner counters that a person having ordinary skill in the art would have had a Bachelor’s degree in electrical engineering, computer engineering, computer science, physics, or a related field, and two years’ work experience related to biometric security, facial authentication, and three-dimensional computer vision such that they would have had significant academic and/or work experience in both facial biometrics and computer vision. Id. at 28–29. Having considered the full record at trial, we maintain the preliminary finding regarding the level of ordinary skill in the art. See Inst. Dec. 13–14. In particular, based on the teachings of the ’938 patent and the asserted prior art, we are persuaded that an ordinarily skilled artisan would have had a work experience related to biometrics, facial authentication, computer vision, and/or optics as at least one of those fields is respectively implicated by the ’938 patent and the asserted prior at. Moreover, our decision would be the same under either proposed level of skill.” slip op. at 9

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

      “C. Claim Construction We interpret claim terms using “the same 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 the principles set forth by the Federal Circuit, the “words of a claim ‘are generally given their ordinary and customary meaning,’” as would be understood by a person of ordinary skill in the art at the time of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed. Cir. 2005) (en banc) (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). The parties do not dispute any claim terms or phrases and our decision does not require construing any particular claim terms or phrases, therefore, we do not expressly construe any particular claim term or phrase. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (noting that “we 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 10

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

      “images are three dimensional—let alone a technique that captures two images at different distances, compares the images for certain differences, and verifies three dimensionality based on those differences, as recited by the claim. Instead, Tanii describes a system that “corrects warp in which the perspective is exaggerated when an image is captured with the user’s face at close range.” Ex. 1007, code (57). In particular, Tanii recognizes the physical phenomenon of perspective distortion (fish-eye distortion) where “[i]f the image of the face of a person or the like is captured from a point that is relatively nearby, an image is obtained in which the perspective appears exaggerated,” i.e., the user image is warped or distorted. Id. ¶ 6; see id. ¶ 48, Fig. 4B. Tanii corrects such warped images by enlarging peripheral areas of the user image. Id. ¶¶ 55–56.” slip op. at 17

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

      “distance from the user. Derakhshani teaches two different approaches: (1) focus-distance approach and (2) parallax approach. Petitioner acknowledges that the focus-distance approach does not expressly disclose capturing a second image at a second distance. Pet. 12 (distinguishing “focus distances” from “actual distances.”). This is because focus-distance, by definition, is not actual distance. Ex. 1005, 16:47–48 (“Focus distance is the distance from a sensor to a point in its field of view that is perfectly in focus.”) In Derakhshani’s focus-distance approach the camera stays the same distance from its subject—only the focus distance changes. Id. at 16:66–17:2 (“By comparing degree of focus for a landmark in images with different focus distances, the distance from the sensor to the landmark may be estimated.”) Derakhshani’s parallax approach also does not expressly disclose capturing a second image at a second distance. In the parallax approach the camera is rotated or slid about the user to create images with different perspectives. Derakhshani, 17:59–64 (“In some implementations, the sensor is moved about the subject during image capture to collect image data from different orientations relative to the subject. For example, a single camera may be rotated or slid slightly or multiple cameras at different positions may be used for image capture.”). Rotating a camera around a user does not change the distance of the camera from the user. At the hearing Petitioner, instead, focused specifically on the use of the word “slid” in Derakhshani as indicating that Derakhshani takes a second image at a second distance. Tr. 16:9–12 (“[Petitioner’s Counsel: . . . Dr. Daft is talking about some of the terms that Derakhshani is using. For example, the term slid and shown in the images, he talks about how slid refers to the different distances between the sensor and the user.”). We determine that it is more likely that the word “slid,” as used in the relevant portion of Derakhshani, further describes the rotation of the camera about the user. Derakhshani indicates as much by describing that both rotating and sliding the camera are examples of how the camera sensor is “moved about the subject during image capture.” Derakhshani, 17:60–61. Thus, sliding the camera does not necessarily disclose moving the camera to a second distance from the subject.” slip op. at 27

    Patent outcomesUS 11,693,938 not shown unpatentable
    Claim construction§ 103 obviousnesscites KSR
    Patents in suitUS 11,693,938
  • PTAB · Jun 17, 2026 · IPR2025-00107 · APJ Bach V Hoang · IPR · Final written decision

    Claims 1–20 were not determined unpatentable because the petition did not establish motivation to combine the references or that they taught capturing images at different distances.

    RulingsFinal written decision
    • Skill levelSkill level board ownDecided for patent owner

      “Patent Owner argues Petitioner’s proffered level of skill is too broad with respect to work experience. PO Resp. 27–28. Patent Owner counters that a person having ordinary skill in the art would have had a Bachelor’s degree in electrical engineering, computer engineering, computer science, physics, or a related field, and two years’ work experience related to biometric security, facial authentication, and three-dimensional computer vision such that they would have had significant academic and/or work experience in both facial biometrics and computer vision. Id. at 28–29. Having considered the full record at trial, we maintain the preliminary finding regarding the level of ordinary skill in the art. See Inst. Dec. 8. In particular, based on the teachings of the ’606 Patent and the asserted prior art, we are persuaded that an ordinarily skilled artisan would have had a work experience related to biometrics, facial authentication, computer vision, and/or optics as at least one of those fields is respectively implicated by the ’606 Patent and the asserted prior at. Moreover, our decision would be the same under either proposed level of skill.” slip op. at 9

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

      “The parties do not dispute any claim terms or phrases and our decision does not require construing any particular claim terms or phrases, therefore, we do not expressly construe any particular claim term or phrase. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (noting that “we 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 10

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

      “We find that these reasons would not have adequately motivated a person having ordinary skill in the art to combine and modify the references in Petitioner’s asserted manner to reach the claimed features. Petitioner’s motivations—“substitution,” “obvious alternative . . . approaches,” “use of a known technique,” and “complimentary” techniques—are all similarly based on swapping or adding techniques for verifying three dimensionality. See Pet. 12–16; Pet. Reply 6–7. These motivations might have been suitable had Tanii described techniques for verifying three dimensionality, but Petitioner has not shown that Tanii describes any technique to verify three dimensionality. See Pet. 12–16, 19–23. Instead, as discussed above, Tanii describes the existence of the perspective distortion phenomenon and a technique for correcting it. As such, substituting the knowledge that perspective distortion exists and techniques to correct it does not correspond with approaches for verifying three-dimensionality, and so does not adequately motivate Petitioner’s combination. Put another way, because Tanii does not teach an approach for verifying three-dimensionality, Tanii’s techniques cannot be used as a substitute for approaches that do verify three dimensionality simply because Tanii discloses the concept of perspective distortion.” slip op. at 16

    • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia with nexusObjective indicia outweighedDecided for patent owner

      “Patent Owner has demonstrated a nexus by showing that certain objective indicia, discussed below, are the direct result of the unique characteristics of the claimed invention. As discussed above in our summary of the ’606 Patent and reflected in our discussion of Petitioner’s obviousness challenges (see §§ I.F, II.E.1, II.E.2, II.E.3), the unique characteristics of the claim relate to verification of three dimensionality by comparing two images taken at different distances for perspective distortion. Indeed, those features are what distinguish over the prior art. See id. Furthermore, Patent Owner, supported by testimony from its Chief Technology Officer, Mr. Rose, asserts the unique characteristics claimed are reflected in the “3D liveness checks” its ZoOm software product provides because ZoOm “confirms that a user is 3D by comparing images taken at different distances for expected differences in biometric data, such as the presence of appropriate perspective distortion and differences.” PO Resp. 25 (citing Ex. 2059 ¶ 49). Patent Owner’s assertion is further supported by a “FaceTec Software Explanation” stating that its software uses “near & far image data . . . to determine if the expected differences in perspective distortion are present in the image data” and, from that, “decides if there is sufficient evidence in the image data to conclude with a high degree [of] confidence that the image data contains first-generation biometric data captured in real-time from a live, physically present user.” Ex. 2067; see PO Resp. 25–26. As such, the 3D liveness checks provided by Patent Owner’s software are indicative of the unique characteristics of the claimed invention and, as we discuss below, certain objective indicia of nonobviousness have a direct nexus to the 3D liveness checks of its software.” slip op. at 30

    Patent outcomesUS 11,157,606 not shown unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 11,157,606
  • Jumio Corp. v. Facetec, Inc.No claims unpatentable
    PTAB · Jun 17, 2026 · IPR2025-00106 · APJ Nabeel U Khan · IPR · Final written decision

    The Board determined claims 1–20 were not unpatentable because Jumio did not show sufficient motivation to combine the references or that they taught capturing images at different distances.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Patent Owner argues Petitioner’s proffered level of skill is too broad with respect to work experience. PO Resp. 28. Patent Owner counters that a person having ordinary skill in the art would have had a Bachelor’s degree in electrical engineering, computer engineering, computer science, physics, or a related field, and two years’ work experience related to biometric security, facial authentication, and three-dimensional computer vision such that they would have had significant academic and/or work experience in both facial biometrics and computer vision. Id. at 28–29. Having considered the full record at trial, we maintain the preliminary finding regarding the level of ordinary skill in the art. See Inst. Dec. 11–12. In particular, based on the teachings of the ’471 patent and the asserted prior art, we are persuaded that an ordinarily skilled artisan would have had a work experience related to biometrics, facial authentication, computer vision, and/or optics as at least one of those fields is respectively implicated by the ’471 patent and the asserted prior at. Moreover, our decision would be the same under either proposed level of skill.” slip op. at 10

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

      “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 the principles set forth by the Federal Circuit, the “words of a claim ‘are generally given their ordinary and customary meaning,’” as would be understood by a person of ordinary skill in the art at the time of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed. Cir. 2005) (en banc) (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). The parties do not dispute any claim terms or phrases and our decision does not require construing any particular claim terms or phrases, therefore, we do not expressly construe any particular claim term or phrase. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (noting that “we 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 10

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

      “We find that these reasons would not have adequately motivated a person having ordinary skill in the art to combine and modify the references in Petitioner’s asserted manner to reach the claimed features. Petitioner’s motivations—“substitution,” “obvious alternative . . . approaches,” “use of a known technique,” and “complimentary” techniques—are all similarly based on swapping or adding techniques for verifying three dimensionality. See Pet. 12–16; Pet. Reply 6–7. These motivations might have been suitable had Tanii described techniques for verifying three dimensionality, but Petitioner has not shown that Tanii describes any technique to verify three dimensionality. See Pet. 13–17, 25–28. Instead, as discussed above, Tanii describes the existence of the perspective distortion phenomenon and a technique for correcting it. As such, substituting the knowledge that perspective distortion exists and techniques to correct it does not correspond with approaches for verifying three-dimensionality, and so does not adequately motivate Petitioner’s combination. Put another way, because Tanii does not teach an approach for verifying three-dimensionality, Tanii’s techniques cannot be used as a substitute for approaches that do verify three dimensionality simply because Tanii discloses the concept of perspective distortion.” slip op. at 18

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

      “none of the relied upon references teach capturing two images at two different distances, as required by limitations 1[d3] and 1[d4]. These limitations recite “moving the camera from a first location to a second location, the second location being a second distance from the user” and “capturing at least one second image of the user taken with the camera of the computing device at the second distance from the user, the second distance being different than the first distance.” Derakhshani does not teach capturing a second image at a second distance from the user. Derakhshani teaches two different approaches: (1) focus-distance approach and (2) parallax approach. Petitioner acknowledges that the focus-distance approach does not expressly disclose capturing a second image at a second distance. Pet. 13 (distinguishing “focus distances” from “actual distances.”). This is because focus-distance, by definition, is not actual distance. Ex. 1005, 16:47–48 (“Focus distance is the distance from a sensor to a point in its field of view that is perfectly in focus.”) In Derakhshani’s focus-distance approach the camera stays the same distance from its subject—only the focus distance changes. Id. at 16:66–17:2 (“By comparing degree of focus for a landmark in images with different focus distances, the distance from the sensor to the landmark may be estimated.”) Derakhshani’s parallax approach also does not expressly disclose capturing a second image at a second distance. In the parallax approach the camera is rotated or slid about the user to create images with different perspectives. Ex. 1005, 17:59–64 (“In some implementations, the sensor is moved about the subject during image capture to collect image data from different orientations relative to the subject. For example, a single camera may be rotated or slid slightly or multiple cameras at different positions may be used for image capture.”). Rotating a camera around a user does not change the distance of the camera from the user. At the hearing Petitioner, instead, focused specifically on the use of the word “slid” in Derakhshani as indicating that Derakhshani takes a second image at a second distance. Tr. 16:9–12 (“[Petitioner’s Counsel: . . . Dr. Daft is talking about some of the terms that Derakhshani is using. For example, the term slid and shown in the images, he talks about how slid refers to the different distances between the sensor and the user.”). We determine that it is more likely that the word “slid,” as used in the relevant portion of Derakhshani, further describes the rotation of the camera about the user. Derakhshani indicates as much by describing that both rotating and sliding the camera are examples of how the camera sensor is “moved about the subject during image capture.” Derakhshani, 17:60–61. Thus, sliding the camera does not necessarily disclose moving the camera to a second distance from the subject.” slip op. at 27

    Patent outcomesUS 10,776,471 not shown unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 10,776,471
  • PTAB · May 26, 2026 · IPR2025-00425 · APJ Kristina M Kalan · IPR · Remand

    The Board denied institution of IPR2025-00425 because it instituted the earlier-considered IPR2025-00424 challenging the same patent.

    RulingsRemand decision
    • RemandOther

      “Request for Director Review. See Paper 35; IPR2025-00424, Paper 35. The request was denied without prejudice and the cases were remanded to the Board to “allow discovery, narrowly tailored to resolve the RPI and privity issues.” Paper 41, 4. Following such discovery, we were instructed to “then determine on the full record whether Petitioners have met their burden of demonstrating that the Petitions are not time-barred under § 315(b), applying the framework set forth in Worlds Inc. v. Bungie, Inc., 903 F.3d 1237, 1242– 44 (Fed. Cir. 2018).” Id. A later-issued Order Supplementing Director Review Decision instructed that “if the Board determines that Petitioners met their burden to identify all RPIs in the Petitions, then the Board should maintain at most one IPR challenging” the ’225 patent. Paper 64, 3. Concurrently herewith, we issue a decision in IPR2025-00424 finding that Petitioner has met its burden of demonstrating that the Petition in that case is not time-barred under 35 U.S.C. § 315(b).” slip op. at 3

    • Other 314aInstitution denied discretionary otherInstitution denied

      “In connection with the ’225 patent, Petitioner filed two petitions requesting inter partes review: the petition in this proceeding (IPR2025- 00425), and the petition in IPR2025-00424. In this proceeding and in IPR2025-00424, Petitioner filed an Explanation regarding the necessity of multiple petitions. Paper 2; IPR2025-00424, Paper 2. Petitioner requested that, “if the Board uses its discretion to institute the Petitions, the Board consider the merits of IPR2025-00424 . . . before IPR2025-00425.” Paper 2,” slip op. at 2

    Discretionary denial
    Patents in suitUS 10,589,225
  • PTAB · May 20, 2026 · IPR2025-00423 · APJ Zhenyu Yang · IPR · Institution

    The Board denied institution of IPR challenging claims 1–4 and 6–29 because it instituted the ranked IPR2025-00422 under the Director’s instruction to maintain at most one IPR.

    RulingsInstitution decision
    • Parallel petitionsInstitution denied discretionary otherDenied

      “Paper 34. Birchtech Corp. (“Patent Owner”) filed a Request for Director Review in each case. See Paper 40; IPR2025-00422, Paper 39. The Director denied the request without prejudice in each case and remanded the cases to the Board to “allow discovery, narrowly tailored to resolve the RPI and privity issues.” Paper 49, 4. The Director later issued an Order Supplementing Director Review Decision in each case, instructing that “if the Board determines that Petitioners met their burden to identify all RPIs in the Petitions, then the Board should maintain at most one IPR challenging” the ’430 patent. Paper 72, 3.” slip op. at 2

    Discretionary denial
    Patents in suitUS 10,668,430
  • PTAB · May 18, 2026 · IPR2025-00278 · APJ David Cotta · IPR · Institution

    The Board denied institution of Berkshire Hathaway Energy Company and PacifiCorp’s petition because it had instituted the earlier-filed IPR2025-00274 challenging the same patent.

    RulingsInstitution decision
    • PTAB / AIA Trials › Real party in interest / privityRpi dispute resolved for petitionerDecided for petitioner

      “request from Patent Owner for Director Review, finding that Patent Owner introduced “evidence sufficient to put RPI and privity at issue” and remanding with instructions to “allow discovery, narrowly tailored to resolve the RPI and privity issues” including “at least materials sufficient to clarify the evidence the Board found to be ‘ambiguous’ and to avoid the need for the Board to ‘speculate as to the nature of the redacted material.’” Paper 57 (Decision on Request for Director Review). The Director instructed that after allowing such discovery, we “should then determine on the full record whether Petitioners have met their burden of demonstrating that the Petitions are not time-barred under § 315(b), applying the framework set forth in Worlds Inc. v. Bungie, Inc., 903 F.3d 1237, 1242–44 (Fed. Cir. 2018). Concurrently herewith, we issue a decision in IPR2025- 00278 finding that Petitioner has met its burden of demonstrating that its Petition is not time-barred under 35 U.S.C. § 315(b).” slip op. at 2

    • Other 314aInstitution denied discretionary otherInstitution denied

      “Review Decision instructing that “if the Board determines that Petitioners met their burden to identify all RPIs in the Petitions, then the Board should maintain at most one IPR challenging each of the ’114 patent, the ’517 patent, the ’430 patent, and the ’225 patent.” Paper 79, 3. Together with its Petition in this proceeding and the proceeding in IPR2025-00274, Petitioner filed an Explanation Regarding the Necessity of Multiple Petitions. Paper 2 (“Explanation”); IPR2025-00274, Paper 2. In the Explanation, Petitioner “request[s] that, if the Board uses its discretion to institute the Petitions, the Board consider the merits of IPR2025-00274 . . . before IPR2025-00278.” Explanation, 3. Further to Petitioner’s request, we first considered the merits of IPR2025-00274. For the reasons discussed in our concurrently issued decision in IPR2025-00274, we institute inter partes review on the grounds set forth in the Petition in IPR2025-00274. Further to the Director’s instruction that we “maintain at most one IPR challenging . . . the ’114 patent,” and the Petitioner’s request that we consider the merits of IPR2025-00274 before IPR2025-00278, we deny institution of the Petition in this proceeding.” slip op. at 3

    Discretionary denial
    Patents in suitUS 10,343,114
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