• Hanwha Solutions Corporation v. Maxeon Solar Pte. Ltd.No claims unpatentable
  PTAB · Feb 24, 2026 · IPR2024-01198 · APJ Jo-Anne M Kokoski · IPR · Final written decision

  Claims 10–20 were not shown unpatentable because Petitioner did not establish the claimed metal impurities or a reason to combine Istratov’s gettering process with the cited solar-cell references.

  RulingsFinal written decision

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

    “These disclosures, taken together, indicate that “metal impurities” are undesirable, and, accordingly, the term “metal impurities” is not meant to include intentionally added dopants. The undesirability of “metal impurities” is also demonstrated by the Specification’s instruction that “contaminants and/or impurities” are used interchangeably throughout. Ex. 1001, 5:8–9. In that regard, “iron, nickel, and/or chromium, among others” are the only exemplary metal impurities and/or metal contaminants identified in the Specification. Id. at 4:65–5:1 (“In an embodiment, the silicon substrate 202 can have contaminants and/or impurities 220, for example metal contaminants and/or metal impurities, such as iron, nickel and/or chromium, among others); 5:35–39 (“In an embodiment, the heating can include gettering contaminants, e.g., metal impurities and/or metal contaminants, from the substrate to the emitter region. In an example, the metal impurities and/or metal contaminants can be iron, nickel, and/or contaminants 520, e.g. metal impurities and/or contaminants, can be located in the second emitter region 512 . . . the metal impurities 520 can be iron, nickel and/or chromium, among others.”). And metal impurities and metal contaminants are both described as gettering from the silicon substrate to the emitter region. See id. at 5:5–9 (“A gettering process can be used to trap the metal impurities 220 in the emitter regions 212, reducing recombination within the silicon substrate 202 and improving overall cell lifetime.”); 5:35– 40 (“In an embodiment, the heating can include gettering contaminants, e.g. metal impurities and/or metal contaminant[s], from the substrate to the emitter region. In an example, the metal impurities and/or metal contaminants can be iron, nickel and/or chromium among others.”); 6:5–8 (“In an embodiment, the heating can getter 232 contaminants 220 from, or nearby, the surface 204 of the silicon substrate 202 and/or from within the silicon substrate 202 to the emitter region 212.”) Accordingly, the Specification conveys that “metal impurities” are metal contaminants that are detrimental to the electrical conduction of solar cells.” slip op. at 13

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

    “Petitioner fails to sufficiently demonstrate by a preponderance of the evidence that a POSITA would have been motivated to look to Istratov’s gettering process to improve Choi’s solar cell. Although Petitioner argues that a POSITA would have been motivated to look to Istratov’s gettering process upon identifying detrimental levels of metal impurities in Choi’s substrate, neither Petitioner nor Dr. Holman levels of metal impurities in Choi’s substrate, what level of metal impurities would be “detrimental,” or what detriment the metal impurities would cause. In that regard, Petitioner does not direct us to, nor do we discern, any teachings in Choi regarding the presence of metal impurities in the silicon substrate, let alone iron and/or copper impurities such as those described in Istratov.” slip op. at 24

  • ExcludeMotion to exclude, deniedDenied

    “We agree with Petitioner. As the Board indicated in Chicago Mercantile Exchange, whether a document qualifies as a printed publication requires a legal determination based upon evidence and “the issue of whether there is sufficient evidence in the record . . . should be presented in the patent owner response—not a motion to exclude.” Chicago Mercantile Exchange, Paper 35 at 52. Although addressing the admissibility of evidence (authenticity or hearsay) underlying the factual determinations of whether Exhibits 1018, 1034, and 1120 may be the subject of a motion to exclude, Patent Owner’s arguments in the Motion address whether there is sufficient evidence to establish that these exhibits are prior art, not the general admissibility of the documents. See Mot. 3–6; Chicago Mercantile Exchange, Paper 35 at 52. be excluded. These exhibits, for the most part, are offered to support Dr. Holman’s testimony regarding the background of the technology (Ex. 1003 ¶¶ 42, 43, 45–52, 56, 57 (citing Ex. 1018), 55, 67 (citing Ex. 1034)) or what the ordinarily skilled artisan would have understood (Pet. Reply 11 (citing Ex. 1120); Ex. 1089 ¶¶ 46–48, 56, 59, 60, 69 (citing Ex. 1120)). Furthermore, Exhibit 1018 was authored by Dr. Holman, and is identified in the curriculum vitae appended to Dr. Holman’s declaration in support of the Petition. Ex. 1003, 224 (App’x. A). Accordingly, we deny Patent Owner’s motion to exclude” slip op. at 32

  Patent outcomesUS 11,251,315 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips
  Patents in suitUS 11,251,315
• Hanwha Solutions Corporation v. Maxeon Solar Pte. Ltd.Some claims unpatentable
  PTAB · Feb 24, 2026 · IPR2024-01203 · APJ Avelyn M Ross · IPR · Final written decision

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

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

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

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

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

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

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

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

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

  Patent outcomesUS 8,222,516 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,222,516
• Hanwha Solutions Corporation v. Maxeon Solar Pte. Ltd.All claims unpatentable
  PTAB · Feb 24, 2026 · IPR2024-01199 · APJ Avelyn M Ross · IPR · Final written decision

  Claims 1–20 are unpatentable as obvious over the grounds combining Froitzheim, Gan, and Smith, or Li, Gan, and Smith.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner also states that the Patent Owner “applies the level of ordinary skill in the art Petitioner proposed.” PO Resp. 24. In light of the record before us, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’053 patent and the prior art of record, we determine that the definition offered by Petitioner and applied by Patent Owner comports with the qualifications a person would have needed to understand the ’053 patent and the prior art.” slip op. at 8

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

    “Petitioner contends that “[t]he claims should be given their plain and ordinary meaning to resolve the issues in this proceeding.” Pet. 17 (citing Ex. 1003 ¶¶ 102–105). Patent Owner states that its Patent Owner Response “adopts petitioner’s proposal to apply the plain and ordinary meaning of the claims.” PO Resp. 24. Accordingly, we need not expressly construe any claim terms. See Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (holding that “only those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy”); see also Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs. in the context of an inter partes review).” slip op. at 9

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

    “teaching away. “A reference may be said to teach away when a person of ordinary skill, upon reading the reference, would be discouraged from following the path set out in the reference, or would be led in a direction divergent from the path that was taken by the applicant.” In re Gurley, 27 F.3d 551, 553 (Fed. Cir. 1994). And, “teaching away” requires more than the mere expression of a general preference. Galderma Labs., L.P., v. Tolmar, Inc., 737 F.3d 731, 738 (Fed. Cir. 2013). Notably, our reviewing court has determined that a reference can distinguish prior art in order to show the novelty of an invention without teaching away from combining the prior art with the invention disclosed in the reference. See Ricoh Co., Ltd. v. Quanta Computer Inc., 550 F.3d 1325, 1332 (Fed. Cir. 2008). Here, Li prefers a “heterogeneous PN junction” and states that “a PN junction is prepared by a low-temperature deposition method, which avoids a conventional diffusion process at 800–1000°C. Such high-temperature process will cause more defects or contamination in silicon material, which will affect the improvement of cell efficiency.” Ex. 1008, 4. But, Li’s preference for lower temperature diffusion processes does not amount to a teaching away from the broader disclosure. In fact, Li acknowledges that “[t]he silicon thin film can be prepared by any deposition method,” including conventional processes at higher temperatures. Ex. 1008, 4 (emphasis added). And, while Patent Owner asserts that “[d]eposition methods are not relevant to the parties’ dispute, which is over deposition temperature” (Sur-reply 17), the deposition method employed includes its deposition temperature. Thus, just because Li teaches one way of depositing its silicon thin film using a low-temperature deposition method does not mean that Li teaches away from high-temperature processes. Li’s teachings do not discredit or discourage high-temperature processes in a manner that may be said to teach away.” slip op. at 44

  Patent outcomesUS 8,878,053 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,878,053
• Shenzhen Kangvape Technology Co., Ltd. v. Rai Strategic Holdings, Inc.Other
  PTAB · Jun 25, 2025 · IPR2024-01406 · APJ Jo-Anne M Kokoski · IPR · Remand

  On remand, the Board denied institution of review of claims 1, 3, 4, 8–13, and 15 under § 314(a), finding the Fintiv factors favored discretionary denial.

  RulingsRemand decision

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied

    “stay or evidence exists that one may be granted if a proceeding is instituted.” Fintiv, Paper 11 at 6. A stay of litigation pending resolution of an inter partes review allays concerns about inefficiency and duplication of efforts, and strongly weighs against exercising our authority to deny institution. Fintiv, Paper 11 at 6. The Guidance Memo states that “the Board will apply the Fintiv factors when there is a parallel proceedings at the International Trade Commission.” Guidance Memo 2. Patent Owner asserts that a stay of the ITC Investigation had not been requested at the time of the Institution Decision,7 and argues that “the ITC does not stay investigations pending IPR.” PO Supp. Br. 4. Patent Owner also notes that the Institution Decision issued “just days before the ITC evidentiary hearing.” Id. Accordingly, Patent Owner argues that this factor favors denial. Id. Patent Owner is likely correct that the ITC would not have been inclined to grant a stay if one had been requested at the time the Institution Decision issued. Moreover, the ITC conducted a full evidentiary hearing less than three weeks after the Institution Decision issued, and the target date for the ITC’s final determination is four months before the statutory deadline for the Board’s final written decision. PO Supp. Br. 5. Accordingly, we” slip op. at 9

  Discretionary denial
  Patents in suitUS 11,925,202
• Shenzhen Tuozhu Technology Co., Ltd. v. Stratasys, Inc.Instituted
  PTAB · Jun 18, 2025 · IPR2025-00321 · APJ Christopher M Kaiser · IPR · Institution

  The Board instituted IPR on claims 1, 2, 5–7, 9, 16, and 17, finding a reasonable likelihood that claim 1 is anticipated by Boyer.

  RulingsInstitution decision

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied

    “approximately two weeks before the statutory deadline for a final written decision, but the most recent median time-to-trial statistics for Judge Gilstrap in the Eastern District of Texas indicate that the actual trial date will likely be in July 2026, which is later than the statutory deadline to issue a final written decision in this proceeding in mid-June 2026. See Ex. 2001, 7 (median time from filing to trial of 23.2 months); Prelim. Resp. 10. Thus, we find this factor is neutral or weighs slightly against discretionary denial.” slip op. at 10

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

    “At this preliminary stage, we determine whether the information presented shows a reasonable likelihood that Petitioner would prevail in establishing that at least one of the challenged claims would have been unpatentable over the proposed prior art. We analyze the asserted grounds with the above-noted principles in mind.” slip op. at 7

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that one of ordinary skill in the art “would have had (1) at least a bachelor’s degree in Mechanical Engineering, Computer Engineering, Chemical Engineering, Materials Science, or a related field, and (2) at least two years of research or industry experience in 3D printing or materials used for 3D printing.” Pet. 5 (citing Ex. 1003 ¶¶ 14–16). Petitioner also argues that “[a]dditional experience could substitute for a formal degree or formal training (and vice versa).” Id. Patent Owner proposes a slightly different level of skill, arguing that a person of ordinary skill in the art “would have had a bachelor’s degree in Mechanical Engineering, Computer Engineering, Chemical Engineering, Materials Science, or a comparable field and at least two years of experience related to 3D printing, with additional experience potentially being a substitute for a formal degree or training (and vice versa).” Prelim. Resp. 24. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears to be consistent with the ’713 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 16

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

    “We note that, as discussed below, we are able to determine whether to institute inter partes review of the ’713 patent without expressly construing the term “from multiple print heads or deposition lines.” 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))). As for Patent Owner’s argument that Petitioner has failed to carry its burden to identify how the claims are to be construed, we disagree on the present record. Although Petitioner does not provide a preferred construction for the single term it proposes requires construction, Petitioner does identify which of its two alternative constructions applies to each of its asserted grounds of unpatentability. Pet. 6 (“Under the first construction, [the obviousness grounds] are applicable, and [the anticipation ground] would be excluded from the claim scope. Under the alternative construction, all of [the asserted grounds] are applicable.”). In our view, this approach does not fail to satisfy Petitioner’s burden under 37 U.S.C. § 42.104(b)(3).” slip op. at 17

  Claim construction§ 102 anticipationDiscretionary denialcites Phillips
  Patents in suitUS 9,421,713
• Njoy, LLC / Njoy Holdings, Inc. v. Juul Labs, Inc.No claims unpatentable
  PTAB · Jun 10, 2025 · IPR2024-00231 · APJ Avelyn M Ross · IPR · Final written decision

  Claims 14–16, 18, 27–29, 31, and 32 were not proven unpatentable because the asserted references failed to establish the claimed airflow path or a reason to make the proposed combinations.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner’s and Patent Owner’s proposed levels of skill are similar and differ in that Petitioner’s relevant degrees and corresponding two years of experience additionally includes “industrial design” and “product design” and familiarity with “electrically powered vaporizing articles, their components or the underlying technologies” where Patent Owner requires two years of experience “designing electro-mechanical consumer products or an advanced degree.” Compare Pet. 7, with PO Resp. 2. Patent Owner alleges that “Petitioner has failed to establish unpatentability under either standard,” indicating that the level of skill in the art is not a dispositive issue. PO Resp. 3. In light of the record before us, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’123 patent and the prior art of record, we determine that the definition offered by Petitioner comports with the qualifications a person would have needed to understand the ’123 patent and the prior art. We note that the outcome of this Decision would be the same under Patent Owner’s proposed definition.” slip op. at 11

  • Expert testimonyPetitioner expert creditedOther

    “In this case, Mr. McAlexander meets both Petitioner’s and Patent Owner’s proposed level of skill in the art. As a result, we are persuaded Mr. McAlexander has the requisite skill and relevant expertise to offer testimony in this matter. For example, Mr. McAlexander has a Bachelor’s Degree in Electrical Engineering and far more than 2 years of experience in the electrical engineering field. Ex. 1027, 3–6, 7. In addition, Mr. McAlexander has provided expert consulting services in a wide range of technology areas involving the process and design of electro-mechanical consumer products. Ex. 1003 ¶ 5. Through one of Mr. McAlexander’s business ventures, his laboratory has “performed detailed airflow analyses, designing and constructing specialized apparatuses to emulate human breath, allowing for precise activation testing of ENDS devices.” Ex. 1043 ¶ 16. That said, a declarant’s expertise, even clothed as a skilled artisan, does not entitle a naked opinion persuasive weight. Ashland Oil, Inc. v. Delta Resins & Refractories, Inc., 776 F.2d 281, 294 (Fed. Cir. 1985). Here, Patent Owner had the opportunity to, and in fact did, thoroughly cross examine Mr. McAlexander about the purported deficiencies in his testimony. See, e.g., Exs. 2052, 2054; Daubert v. Merrell Dow Pharm., Inc., 509 U.S. 579, 595 (1993) (“Vigorous cross examination [and] presentation of contrary evidence . . . are the traditional and appropriate means of attacking shaky but admissible evidence.”). Therefore, to the extent Patent Owner credibly identifies deficiencies in Mr. McAlexander’s testimony or that testimony lacks factual support or is based on broad, conclusory assertions, we will assign appropriate weight. See Velander v. Garner, 348 F.3d 1359, 1371 (Fed. Cir. 2003) (explaining that it is within the Board’s discretion, as the trier of fact, to accord appropriate weight to the evidence presented).” slip op. at 12

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

    “Petitioner contends that the parties proposed a construction for “pressure valve,” a limitation appearing in claims 18 and 31, during the ITC investigation. Pet. 7 (citing Ex. 1001, 41:58–65). Patent Owner contends that the terms of the ’123 patent should be given their plain and ordinary meaning. PO Resp. 4. Because resolution of the issues presented in this case do not require construction of the term “pressure valve,” we do not expressly construe this claim term. See Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (holding that “only those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy”); see also Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs. in the context of an inter partes review).” slip op. at 14

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “We agree with Patent Owner. To anticipate a claim, a reference “must not only disclose all elements of the claim within the four corners of the document, but must also disclose those elements ‘arranged as in the claim.’” Net MoneyIN, 545 F.3d at 1369. “The requirement that the prior art elements themselves be arranged as in the claim means that the claims cannot be treated . . . as mere catalogs of separate parts, in disregard of the part-to-part relationships set forth in the claims.” Therasense, Inc. v. Becton, Dickinson & Co., 593 F.3d 1325, 1332 (Fed. Cir. 2010). Indeed, the prior art reference “must clearly and unequivocally disclose the claimed [invention] or direct those skilled in the art to the [invention] without any need for picking, choosing, and combining various disclosures not directly related to each other by the teachings of the cited reference.” Net MoneyIN, 545 F.3d at 1371 (citation omitted). “[D]ifferences between the prior art reference and the claimed invention, however slight, invoke the question of obviousness, not anticipation.” Id.” slip op. at 20

  Patent outcomesUS 10,130,123 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,130,123
• Juul Labs, Inc. v. Njoy, LLCNo claims unpatentable
  PTAB · May 21, 2025 · IPR2024-00161 · APJ Christopher M Kaiser · IPR · Final written decision

  Claims 1–27 were not shown unpatentable because the asserted obviousness grounds failed to establish the claimed central airflow passageway or a reason to combine the references.

  RulingsFinal written decision

  • Expert testimonyPatent owner expert creditedPetitioner expert discountedDecided for patent owner

    “Relying on the testimony of Patent Owner’s declarant Dr. Singhose, Petitioner argues that a person of ordinary skill in the art “would have known a central straight path has less airflow resistance than a circuitous one.” Reply 22–23 (citing Ex. 1035, 127:15–128:9). But the same witness also testified that higher airflow resistance might be desirable and explained that providing more resistance to airflow might result in improved mixing. Ex. 1035, 21:21–22:12, 127:20–24, 170:10–14. In addition, Dr. Singhose testifies that the complicated design of the airflow passageway in Xia “serves important functions,” including “allow[ing] large droplets to be reabsorbed by the liquid-guiding mechanism,” allowing “excessive liquid in the airflow [to] condense,” and “prevent[ing] the chemical liquid from being sucked into the mouth.” Ex. 2022 ¶ 183 (citing Ex. 1004, 11, 13–14, 16). Although Petitioner’s declarant Dr. Sturges testifies that a straight airflow passageway “would provide improved, smoother air flow,” he does not provide any evidence supporting the view that the air flow would be improved. Ex. 1007 ¶ 118. We credit the testimony of Dr. Singhose that using a straight passageway in Xia would have been detrimental rather than beneficial. Ex. 2022 ¶ 183. Petitioner also argues that the inventors’ use of a straight path is evidence that the use of a straight passageway was “merely common-sense obviousness.” Reply 22–23. This is hindsight. Otsuka Pharm. Co. v. Sandoz, Inc., 678 F.3d 1280, 1296 (Fed. Cir. 2012) (“The inventor’s own path itself never leads to a conclusion of obviousness; that is hindsight.”). Moreover, it does not address the testimony of Dr. Singhose that the use of a complicated passageway like that in Xia had benefits not present in a straight central passageway.” slip op. at 29

  • Skill levelSkill level petitioner adoptedOther

    “B. Level of Ordinary Skill in the Art Petitioner contends that a person of ordinary skill in the art (“POSITA”) “would have had a mechanical or electrical engineering degree, industrial design degree, or a similar technical degree, or equivalent work experience, and 5 to 10 years of experience in electromechanical devices.” Pet. 10 (citing Ex. 1007 ¶ 16). Prior to institution, Patent Owner stated that, for “the limited purpose of this Preliminary Response,” it “does not challenge the definition of a POSITA set forth in the Petition.” Prelim. Resp. 9. We adopted Petitioner’s proposed definition in our Decision granting institution. During trial, neither party disputed this definition. Upon a complete record, we see no reason to change the adopted definition.” slip op. at 9

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

    “Patent Owner argues, however, that this presumption is overcome in the present case, and we agree. PO Resp. 28–32. We note that, although the claims require the first aperture to be “on the first end,” the claims still require that the “housing hav[e] a first aperture.” Thus, the issue is whether the aperture must be on the housing itself or part of the housing, as well as whether the aperture is on the first end of the housing. Although “having” and “includes” are used with respect to the solution holding medium to refer to elements located inside the housing, the specification of the ’881 patent suggests that the ends of the housing are part of the housing itself, rather than located inside the housing. First, “the first end . . . can be integrated into a single assembly as part of the housing.” Ex. 1001, 6:16–17. Second, “the housing . . . may comprise the cylindrical wall and two end-caps,” or “the housing . . . may comprise the cartridge wall and a single end-cap.” Id. at 3:55–59. The only figures of the ’881 patent that depict first end 206 show it at the end of the housing rather than located within the interior of housing 202. Id. at Figs. 2, 3. Moreover, there is no requirement to construe a claim term uniformly across multiple uses in the claims when doing so would be nonsensical. Microprocessor Enhancement Corp. v. Texas Instruments, Inc., 520 F.3d 1367, 1375 (Fed. Cir. 2008). Here, construing a first element that is recited as “having” or “includ[ing]” a second element always as encompassing not only second elements that are part of the first element, but also second elements that are located within the interior of the first element, would lead to nonsensical results. Claim 2 recites an airflow passageway “having a length having a circular cross section.” Ex. 1001, 17:59–60. It would be nonsensical to interpret this claim as encompassing an airflow passageway of non-circular cross section that contains another object that has a circular cross section, and neither party argues in favor of such a reading. Similarly, claim 16 recites an “airflow passageway having an interior having a uniform cross-sectional area,” and there is no reason to interpret this claim as encompassing an airflow passageway of non-uniform cross-sectional area that contains another object that itself has uniform cross-sectional area. Id. at 19:47–48. Thus, the claims do not use “having” or “includes” consistently to refer to elements located within the interior of an object; instead, they sometimes use these terms to refer to elements that are a part of an object. See Epcon Gas Sys., Inc. v. Bauer Compressors, Inc., 279 F.3d 1022, 1030–31 (Fed. Cir. 2002) (terms should be construed based on the context of how the terms are used in the claims).” slip op. at 13

  • Prior constructionPrior construction not adoptedDecided for patent owner

    “When we instituted trial, we preliminarily construed this phrase to encompass apertures that are located within the first end of the housing, determining on the record available at that time that “[t]he term does not require that the first aperture be located in the housing itself.” Inst. Dec. 16. We invited the parties to “address [the] construction of this term during trial,” id., and, on the full record developed during trial, we reach a different conclusion.” slip op. at 10

  Patent outcomesUS 10,334,881 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,334,881
• Innoscience America, Inc. v. Infineon Technologies Americas Corp.Institution denied
  PTAB · May 16, 2025 · IPR2025-00010 · APJ Michelle N Wormmeester · IPR · Institution

  The Board denied institution of IPR challenging claims 1–14, exercising § 314(a) discretion under Fintiv because the balance of factors favored denial.

  RulingsInstitution decision

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied

    “2. Factor 2: ITC Final Determination Date Fintiv provides that an ITC trial date that is earlier than the Board’s projected statutory deadline for a final written decision may favor discretionary denial if the ITC is going to decide the same or substantially similar issues to those presented in the petition. Fintiv, Paper 11 at 8. The Guidance Memo further provides that “the Board is more likely to deny institution where the ITC’s projected final determination date is earlier than the Board’s deadline to issue a final written decision.” Guidance Memo 2. Here, the ITC has set the target date for its final determination to March 2, 2026. Ex. 2010, 3 (ITC Order Amending the Procedural Schedule). Our final written decision would be due almost three months later, in late May 2026, should we institute inter partes review.” slip op. at 8

  Discretionary denial
  Patents in suitUS 9,070,755
• Jiangsu Favored Nanotechnology Co., Ltd. v. P2i Ltd.All claims unpatentable
  PTAB · Apr 11, 2025 · IPR2024-00380 · APJ Sheldon M Mcgee · IPR · Final written decision

  Claims 1–5, 7, and 9–14 are unpatentable as obvious over Cohen and Legein or Francesch and Legein; Petitioner’s motion to strike is denied as moot.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “The parties agree that a person of ordinary skill in the art in the field of the ’087 patent in June 20154 “would have had at least a bachelor’s degree in a field such as chemistry, physics, or chemical engineering, as well as at least two years of experience with plasma-polymerization techniques.” Pet. 20 (citing Ex. 1002 ¶¶ 22–29); PO Resp. 13 (Patent Owner stating that it “does not dispute this characterization of the level of ordinary skill in the art.”); see also PO Sur-reply 1–2 (noting both parties’ agreement on the education and experience level of the ordinarily skilled artisan).” slip op. at 7

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

    “On the fully developed trial record, we determine that no claims need an express construction. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Ltd., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (holding that only claim terms in controversy need to be construed, and only to the extent necessary to resolve the controversy (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 9

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “Because of Patent Owner’s shifting definitions of the education and experience level of the ordinarily skilled artisan, it is unclear on the complete record what precise definition Patent Owner and Dr. Senkevitch are applying when arguing the skilled artisan’s capabilities. PO Resp. 13, 22–27, 31–32, 34–40; PO Sur-reply 1–6, 11–13; Ex. 2007 ¶¶ 30, 31, 33, 34, 37, 40, 52–55, 60, 68, 74, 76, 77, 80–86, 89, 91, 94, 95, 100, 102–105, 108, 110, 111, 113–116, 118–120, 122, 124, 127–134. We, therefore, give Dr. Senkevitch’s testimony regarding the capabilities of a person of ordinary skill in the art minimal weight, which leaves us with Patent Owner’s insufficiently supported arguments regarding the skilled artisan’s capabilities. PO Resp. 13, 22–27, 31–32, 34–40; PO Sur-reply 1–6, 11–13. Moreover, as Petitioner correctly points out, the ʼ087 patent expressly teaches that the precise conditions for forming a protective polymeric coating “will vary depending upon factors such as, without limitation, the nature of the monomer compound, the crosslinking agent, the substrate, as well as the desired properties of the coating” and that such “conditions can be determined using routine methods.” Ex. 1001 15:1–15:5 (emphasis added); Pet. Reply 17. Where the patent itself leaves to the judgment of an ordinarily skilled artisan the assessment of these factors to ascertain suitable conditions for forming the protective coating, we find persuasive Petitioner’s view that it would have been well within the level of ordinary skill to ascertain such suitable conditions.” slip op. at 20

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

    “We disagree with Patent Owner. Although the claims of the ʼ087 patent recite obtaining the protective cross-linked polymeric coating “by exposing the device or component to a plasma,” the field of endeavor analysis in an analogous art inquiry does not exclusively turn on the claims at issue, but rather takes account of the entirety of a patent’s disclosure. See In re Bigio, 381 F.3d 1320, 1326 (Fed. Cir. 2004) (explaining that “the PTO must show adequate support for its findings on the scope of the field of endeavor in the application’s written description and claims” (emphasis added)); In re Mettke, 570 F.3d 1356, 1359 (Fed. Cir. 2009) (rejecting an argument that the field of endeavor was limited to a claimed “Internet terminal” when “the specification describes various communication media, including facsimile machines and email, as related to the invention.”). This is significant here because the ʼ087 patent discloses that “[t]he … invention relates to protective coatings” and specifically “relates to protective coatings for electronic or electrical devices and components thereof, and methods of forming such coatings.” Ex. 1001, 1:14–17. Based on this disclosure, we find that the ʼ087 patent’s field of endeavor relates to “protective coatings for electronic or electrical devices and components thereof” broadly, not just those formed on such devices or components via a plasma polymerization process as asserted by Patent Owner. Id. Although Cohen does not explicitly disclose that its crosslinked polymers constitute a “protective coating,” Cohen does disclose that its “copolymerizable mixture can be cast into films” (Ex. 1004, 2:61–62), that the polymerization can “effected in situ,” and that the polymers may be used in “numerous” electrical applications (id. at 5:17–25). Tr. 8:9–10:2, 27:2– 21; see Pet. Reply 5 (explaining how “Cohen described insulating polymers that could be applied as films and be used to protect substrates including cables and electrical coils.” (citing Ex. 1004, 2:60–63, 5:13–25)). These disclosures suggest strongly that Cohen’s crosslinked polymers––if cast into a film or formed in situ on an electrical device or component––would serve as a protective coating on that electrical device or component, even though Cohen does not expressly refer to its crosslinked polymers ipsis verbis as a “protective coating.” Thus, we find that Cohen is within the field of endeavor of the ʼ087 patent.” slip op. at 15

  Patent outcomesUS 11,041,087 unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,041,087
• Commscope Technologies LLC v. Belden Canada UlcInstituted
  PTAB · Feb 27, 2025 · IPR2024-01228 · APJ Kimberly Mcgraw · IPR · Institution

  The Board instituted IPR on all challenged claims and all asserted grounds after finding a reasonable likelihood that claim 1 is unpatentable over Fukui.

  RulingsInstitution decision

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

    “c) Conclusion Petitioner shows a reasonable likelihood that it would prevail in showing that claim 1 is unpatentable over Fukui. Accordingly, we institute inter partes review of all challenged calms based on all grounds asserted in the Petition. See SAS, 138 S.Ct. at 1354.” slip op. at 25

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

    “III. DISCRETION TO DENY INSTITUTION UNDER 35 U.S.C. § 325(d) Patent Owner argues that if the Board determines that Petitioner’s Fukui-based grounds 1 and 2 are deficient, then the Board should deny institution under § 325(d). Prelim. Resp. 26. In particular, Patent Owner asserts that remaining grounds 3 through 5 rely on art (i.e., Sauter) a reference that is substantially similar to art that was before the Examiner (i.e., Sedor). Id. at 26–27. Because we do not determine that Fukui-based grounds are deficient, we decline to exercise our discretion to deny institution under § 325(d).” slip op. at 31

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “time it was made, we consider the level of ordinary skill in the pertinent art at the time of the invention. Graham, 383 U.S. at 17. Petitioner contends that a person of ordinary skill in the art (“POSITA”) “would have a B.S. degree or equivalent in mechanical or electrical engineering or similar fields, in addition to a minimum of two years of professional experience with or graduate studies involving design, development, and/or utilization of optical communication systems.” Pet. 26. (citing Ex. 1003 ¶¶ 19–21). At this stage of the proceeding, Patent Owner neither responds to Petitioner’s proposed definition, nor provides a definition of its own. See Prelim. Resp. Petitioner’s undisputed proposed definition appears to be consistent with the cited prior art and the disclosure of the ’422 patent, and we adopt it for purposes of this Decision.” slip op. at 10

  • Claim Construction › Intrinsic evidence (Phillips canons) › Prosecution history disclaimer / disavowalTerm construed petitioner constructionDecided for petitioner

    “Based on the present record, we agree with Petitioner that Patent Owner’s statements during prosecution are relevant to claim construction. Pet. 24–25. During prosecution of the parent application to the ’422 patent, Patent Owner stated, inter alia, that “a person of ordinary skill in the art would understand that the width of a cassette is simply the width of the cassettes from side to side and not some other ‘dimension’ such as the number of receptables or the like.” Ex. 1002, 187. Patent Owner further stated that it disagreed with the Examiner’s statement that paragraph 15 of the specification6 defines width in terms of the number of receptacles and that such a definition of width makes no sense in view of other claims where the standard with is defined in terms of a width of front edge of a tray on which the cassettes are secured. Id. We note that at this stage of the proceeding, Patent Owner has not provided any argument or evidence opposing Petitioner’s proposed construction or supporting the claim construction that it proposed during the district litigation. Our construction is preliminary and the parties are invited to address this claim construction more fully during trial.” slip op. at 13

  Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 11,656,422

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.