• Posco Co., Ltd. v. ArcelormittalAll claims unpatentable
  PTAB · Jul 16, 2026 · IPR2025-00371 · APJ Brian D Range · IPR · Final written decision

  Claims 1–25 are unpatentable as obvious under § 103 over the asserted combinations of Takagi, Cornette, Suehiro, GMW14400, Laurent, and Vaissiere.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art (POSITA) “would have had an undergraduate degree in materials science, manufacturing engineering, mechanical engineering, or equivalent knowledge, training, or experience, with two years of experience working in metallurgy.” Pet. 6 (citing Ex. 1003 ¶ 15). Patent Owner does not challenge Petitioner’s definition of a POSITA for this proceeding. PO Resp. 8. Because the parties agree and because Petitioner’s proposal is reasonable and consistent with the ’227 patent specification and the prior art, we adopt Petitioner’s proposal. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art may reflect an appropriate level of skill in the art).” slip op. at 8

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

    “1. superficial layer The only independent claim at issue, claim 1, recites a “Superficial layer.” Ex. 1001, 15:6. Patent Owner argues that, based on plain and ordinary meaning, the term “superficial layer” refers to a “surface layer” or “top layer.” PO Resp. 8–9. Petitioner does not dispute this construction. See Pet. Reply 21–22 (arguing that the relevant layer of the Suehiro reference is a superficial layer because it is outermost and present at the surface). Because the parties are in agreement and because that agreement is consistent with plain language, claim language, and the ’227 specification, we construe “superficial layer” as referring to a surface layer or top layer.” slip op. at 10

  • Claim Construction › Extrinsic evidence (dictionaries, experts)Term construed petitioner constructionDecided for petitioner

    “defined stoichiometry” (Ex. 2037, 527) but the word may also be a “generic term for phases . . . which may have a narrow or extended compositional stability range” (id.). The first glossary meaning is consistent with Patent Owner’s position. The second, broader, glossary meaning is consistent with Petitioner’s position. Some of the extrinsic sources before us support the broad definition, and some support the narrow definition. See PO Sur-Reply 3–4 (arguing that Dr. Miles admitted that various treatises distinguish intermetallic compounds from alloys and solid solutions). Thus, neither Dr. Miles or Dr. Raabe is “wrong scientifically” in how they use the term “intermetallic” in this proceeding. Id. at 2 (noting that Dr. Miles agreed that Dr. Raabe’s construction is not wrong scientifically). As explained below, however, only one of these meanings is appropriate here. To decide which possible meaning applies to the ’227 patent, we focus on the patent claims and specification. Claim 1 indicates that the intermetallic layer has a “mean composition” (emphasis added). Ex. 1001, 15:1–10. This indicates, albeit weakly, that iron composition across the layer may vary rather than having ordered stoichiometry—consistent with Petitioner’s position. The specification also indicates that “intermetallic alloying” is a possibility—again, consistent with Petitioner’s position. Ex. 1001, 2:47–50. Meanwhile, nothing in the ’227 specification explicitly (or implicitly) suggests that “intermetallic layer” must be limited to elements atomically joined with defined stoichiometry in an ordered crystal structure. We also find that Dr. Miles’s testimony regarding the meaning of “intermetallic” is more credible than Dr. Rabbe’s testimony. Dr. Rabbe, in deposition, stated that Figure 2 of the challenged patent “does not show a layer that meets [his] construction of intermetallic.” Ex. 1078, 129:21–24. The ’227 patent, however, states that Figure 2 includes an “Al-rich Intermetallic layer.” Ex. 1001, Fig. 2, 3:60–64 (“FIG 2. Illustrates a coating … which does not correspond to the invention. This succession of layers (interdiffusion layer and intermetallic layer) yields inferior results in resistance spot welding.”). Also, Dr. Raabe previously referred to a layer of Takagi as having “intermetallic phase layering and structure.” Pet. Reply 4 (citing Ex. 1076 ¶ 166; Ex ¶ 1075, 17) (emphasis omitted). Thus, Dr. Raabe’s construction of “intermetallic” for this proceeding does not fully account for the ’227 patent usage of the word “intermetallic” and does not fully account for Dr. Raabe’s prior usage of the word “intermetallic.” Patent Owner argues that Petitioner’s construction “erases the meaningful distinction” between the claimed layers. PO Resp. 11. Patent Owner further argues that Petitioner’s construction renders the word “intermetallic” superfluous because allowing the intermetallic layer to be “merely a multi-element alloy erases the meaningful distinction among these layers.” Id. We disagree. The word intermetallic serves to require that the layer be composed of two or more metals or a metal and a metalloid. The word intermetallic also serves as a label to differentiate each of the four claimed layers. For example, in claim 1, the word “intermetallic” is used much like the words “interdiffusion” and “intermediate” to give each of the four layers (each having differently mean compositions) different labels.” slip op. at 16

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityPrinted publication establishedDecided for petitioner

    “Because IHS was a company that created an online database with the purpose of providing (selling) standards including General Motors standards to the public, we determine that a person of ordinary skill in the art would have known to look to this database and would have been able to find GMW14400. Patent Owner presents no evidence to the contrary. Because a preponderance of the evidence supports Petitioner, we determine Petitioner establishes GMW14400 is qualifies as prior art.” slip op. at 21

  Patent outcomesUS 11,326,227 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,326,227
• Posco Co., Ltd. v. ArcelormittalAll claims unpatentable
  PTAB · Jul 16, 2026 · IPR2025-00370 · APJ Brian D Range · 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

    “Petitioner contends that a person of ordinary skill in the art (POSITA) “would have had an undergraduate degree in materials science, manufacturing engineering, mechanical engineering, or equivalent knowledge, training, or experience, with two years of experience working in metallurgy.” Pet. 6 (citing Ex. 1003 ¶¶ 13–16). Patent Owner does not challenge Petitioner’s definition of a POSITA for this proceeding. PO Resp. 8. Because the parties agree and because Petitioner’s proposal is reasonable and consistent with the ’602 patent specification and the prior art, we adopt Petitioner’s proposal. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art may reflect an appropriate level of skill in the art).” slip op. at 8

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

    “1. superficial layer All independent claims at issue, claims 1, 21, and 24, recite a “superficial layer.” Ex. 1001, 15:11, 16:60, 17:21. Patent Owner argues that, based on plain and ordinary meaning, the term “superficial layer” refers to a “surface layer” or “top layer.” PO Resp. 8–9. Petitioner does not dispute this construction. See Pet. Reply 21–22 (arguing that the relevant layer of the Suehiro reference is a superficial layer because it is outermost and present at the surface). Because the parties are in agreement and because that agreement is consistent with plain language, claim language, and the ’602 specification, we construe “superficial layer” as referring to a surface layer or top layer.” slip op. at 10

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

    “defined stoichiometry” (Ex. 2037, 527) but the word may also be a “generic term for phases . . . which may have a narrow or extended compositional stability range” (id.). The first glossary meaning is consistent with Patent Owner’s position. The second, broader, glossary meaning is consistent with Petitioner’s position. Some of the sources before us support the broad definition, and some support the narrow definition. See PO Sur-Reply 3–4 (arguing that Dr. Miles admitted that various treatises distinguish intermetallic compounds from alloys and solid solutions) Thus, neither Dr. Miles or Dr. Raabe is “wrong scientifically” in how they use the term “intermetallic” in this proceeding. Id. at 2 (noting that Dr. Miles agreed that Dr. Raabe’s construction is not wrong scientifically). As explained below, however, only one of these meanings is appropriate here. To decide which possible meaning applies to the ’602 patent, we focus on the patent claims and specification. The claims indicate that the intermetallic layer has a “mean iron composition” (emphasis added). Ex. 1001, 15:6–10. This indicates, albeit weakly, that the iron composition across the layer may vary rather than having ordered stoichiometry— consistent with Petitioner’s position. The specification also indicates that “intermetallic alloying” is a possibility—again, consistent with Petitioner’s position. Id. at 2:50–54. Meanwhile, nothing in the ’602 specification explicitly (or implicitly) suggests that “intermetallic layer” must be limited to elements atomically joined with defined stoichiometry in an ordered crystal structure. We also find that Dr. Miles’s testimony regarding the meaning of “intermetallic” is more credible than Dr. Raabe’s testimony. Dr. Raabe, in deposition, stated that Figure 2 of the challenged patent “does not show a layer that meets [his] construction of intermetallic.” Ex. 1078, 129:21–24. The ’602 patent, however, states that Figure 2 includes an “Al-rich Intermetallic layer.” Ex. 1001, Fig. 2, 3:57–61 (“FIG 2. Illustrates a coating . . . which does not correspond to the invention. This succession of layers (interdiffusion layer and intermetallic layer) yields inferior results in resistance spot welding.”). Also, Dr. Raabe previously referred to a layer of Takagi as having “intermetallic phase layering and structure.” Pet. Reply 4 (citing Ex. 1076, 166; Ex. 1075, 17) (emphasis omitted). Thus, Dr. Raabe’s definition of “intermetallic” does not fully account for the ’602 patent usage of the word “intermetallic” and does not fully account for Dr. Raabe’s prior usage of the word “intermetallic.” Patent Owner argues that Petitioner’s construction “erases the meaningful distinction” between the claimed layers. PO Resp. 11. Patent Owner further argues that Petitioner’s construction renders the word “intermetallic” superfluous because allowing the intermetallic layer to be “merely a multi-element alloy erases the meaningful distinction among these layers.” Id. We disagree. The word intermetallic serves to require that the layer be composed of two or more metals or a metal and a metalloid. The word intermetallic also serves as a label to differentiate each of the four claimed layers. For example, in claim 1, the word “intermetallic” is used much like the words “interdiffusion” and “intermediate” to give each of the four layers (each having differently defined mean iron compositions) different labels.” slip op. at 16

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

    “have had reason to combine teachings of Takagi and Cornette with a reasonable expectation of success. Pet. 11–20 (citing, e.g., Ex. 1003 ¶¶ 28– 42; Ex. 1016 ¶ 35; Ex. 1014, 9; Ex. 1025, 5:17–20; Ex. 1026, 7; Ex. 1034 ¶ 13). In particular, Petitioner argues that Takagi discloses a pre-coating thickness of 10–20 µm but does not explicitly disclose a post hot-stamping coating thickness corresponding to the pre-coating thickness. Pet. 11. Cornette teaches that the hot-stamping thickness causes coating expansion from 25 µm to about 40 µm, an increase of 60%. Id. (citations omitted). Petitioner and Dr. Miles reason that, when hot stamping Takagi’s product, the thickness would be 32 µm. Id. (citing Ex. 1003 ¶ 32); see also Pet. Reply 20–21. Thus, Patent Owner argues that Cornette evidences Takagi’s finally coating thickness without requiring modification of Takagi. Petitioner further argues that Takagi and Cornette teach that post hot- stamping thickness could be varied and optimized as a result effective variable. Id. at 12–13; see also Pet. Reply 17–18. Cornette teaches, for example, that “[t]he average [pre-coating] layer thickness showing the best compromise between corrosion protection and weldability is 25 µm” and links this pre-coating thickness to a final thickness of “about 40 µm at the steel surface.” Ex. 1014, 9. Petitioner also argues that it would have been obvious to fill in other details of Takagi including, for example, selecting USIBOR 1500 steel, based on the teachings of Cornette. Pet. 14. Patent Owner argues that there is no reason to combine Takagi with the teachings of Cornette. PO Resp. 26. Patent Owner makes seven related arguments. Patent Owner first argues that the Petitioner’s position is speculative and lacks basis. Id. at 26–27. We disagree. Cornette evidences a final coating thickness for Takagi, and the references also suggest that final coating thickness is result effective. Second, Patent Owner argues that there would have been no incentive to seek a motivation to seek a thicker coating post-hot stamping. Id. at 28– 35. This argument does not undermine Petitioner’s position that Takagi, by itself, would have reached a thicker coating after stamping as evidenced by Cornette. Pet. 11–12. Petitioner takes the position, with evidence, that practice of Takagi alone would reach the recited thickness. No motivation to modify Takagi is required under this position.” slip op. at 25

  Patent outcomesUS 10,961,602 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 10,961,602
• Syngenta Crop Protection AG v. Inflexion Point Technologies, LLCInstitution denied
  PTAB · Dec 1, 2025 · PGR2025-00045 · APJ Debra L Dennett · PGR · Institution

  The Board denied institution because Petitioner did not show it was more likely than not that any challenged claim was unpatentable under the asserted grounds.

  RulingsInstitution decision

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

    “We have authority to determine whether to institute a post-grant review under 35 U.S.C. § 324. Institution of a post-grant review is authorized by statute only when “the information presented in the petition . . . would demonstrate that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” 35 U.S.C. § 324(a). The burden is on Petitioner to show that the challenged patent is eligible for postgrant review. Mylan Pharms. Inc. v. Yeda Research & Dev. Co., PGR2016- 00010, Paper 9 at 10 (PTAB Aug. 15, 2016) (holding that the ultimate burden of persuasion remains with a petitioner to demonstrate that the challenged patent is eligible for post-grant review). Upon consideration of the Petition, Preliminary Response, and the cited evidence, we determine that Petitioner has not shown that it is more likely than not that any of the challenged claims are unpatentable. We thus determine to not institute a post-grant review of the ’027 patent based on the Petition.” slip op. at 2

  • Skill levelSkill level petitioner adoptedOther

    “a Bachelor of Science degree in Agricultural or Mechanical Engineering with 2–4 years of practical, applied experience in the field of agricultural machinery, including systems integration and fluid handling and sprayer control systems, or equivalent experience. Prelim. Resp. 12 (citing Ex. 2001, ¶ 59). Patent Owner states that the differences in the asserted levels of ordinary skill should not change the outcome of the Petition. Id. For the purposes of this decision, we adopt Petitioner’s definition, which appears consistent with the level of skill shown in the prior art references of record and the ’027 patent. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))). Our analysis, however, would not change were we to adopt Patent Owner’s definition.” slip op. at 7

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

    “Patent Owner contends that claim construction is necessary for the “seed-applied substance” term because Petitioner allegedly ignores the teaching of the specification in evaluating the term. Prelim. Resp. 12. Patent Owner points to the specification, which defines a “seed-applied substance” as “includ[ing] any composition applied to seeds prior to the seeds being planted (e.g., when the seed comes in contact with the soil in a field).” Id. at 13 (quoting Ex. 1001, 7:45-48). Patent Owner contends that the term means “a substance that is applied directly to the seed before the seed comes into contact with the soil in a field.” Id. (citing Ex. 2001, ¶ 55). According to Patent Owner, Petitioner erroneously uses a definition that “allows the ‘seedapplied substance’ to be applied to the seed (and soil) as the seed lay planted in the soil.’” Id. For the purpose of addressing Petitioner’s grounds, we use the definition of “seed-applied substance” provided in the ’027 patent, i.e., “any composition applied to seeds prior to the seeds being planted (e.g., when the seed comes in contact with the soil in a field).” Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996) (“[A] patentee may choose to be his own lexicographer and use terms in a manner other than their ordinary meaning, as long as the special definition of the term is clearly stated in the patent specification or file history.”).” slip op. at 7

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

    “3. Analysis Our analysis of whether Wagers discloses the limitation “individually applying the desired application amount of the selected type of the seed-applied substance to each seed as it is being delivered to the soil” is dispositive of Petitioner’s challenge to claim 1 as anticipated.” slip op. at 10

  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Graham
  Patents in suitUS 12,102,027
• Multi-Color Corporation v. Brook & Whittle LtdInstituted
  PTAB · Sep 19, 2025 · PGR2025-00025 · APJ Kimberly Mcgraw · PGR · Institution

  The Board instituted PGR on claims 1–19 and all asserted grounds, finding it more likely than not that claim 1 is anticipated by the Gatorade Label.

  RulingsInstitution decision

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

    “if “the information presented in the petition . . . demonstrate[s] that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” Post-grant review is available for patents that issue from applications that at one point contained at least one claim with an effective filing date on or after March 16, 2013. See Leahy-Smith America Invents Act, Pub. L. No. 112-29, 125 Stat. 284 (2011) (“AIA”), §§ 3(n)(1), 6(f)(2)(A). After considering the briefing and the evidence of record, for the reasons set forth below, we determine that Petitioner has shown that the ’422 Patent is eligible for post-grant review and has shown it is more likely than not that at least one challenged claim of the ’422 Patent is unpatentable under § 324(a). Accordingly, we institute a post-grant review of the challenged claims of the ’422 Patent.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner contends that a person of ordinary skill in the art “would possess at least (1) a Bachelor’s degree in chemistry or a related field, with (2) five years of experience in material identification and characterization using multiple analytical methods and field sampling, or equivalent research or professional experience.” Pet. 12 (citing Ex. 1014 ¶ 24). Patent Owner does not dispute Petitioner’s definition for one of ordinary skill in the art nor provide a proposed definition of its own. See generally Prelim. Resp. For the purposes of this Decision, we adopt Petitioner’s undisputed proposal regarding the level of one of ordinary skill in the art.” slip op. at 7

  • Claim Construction › Intrinsic evidence (Phillips canons) › Prosecution history disclaimer / disavowalDisclaimer foundDecided for patent owner

    “336. The applicant explained that not all combinations of shrink films and light blocking materials are recyclable. Id. at 335. The applicant explained that films can be compatible with PET recycling in two ways, (1) the film can float in water and be separated from PET that sinks in water or (2) the PET films crystallize and “can be recovered with the PET stream.” Id. at 336 (citing “A Resource Document by the Association of Plastic Recyclers (APR)”) (found at Ex. 1002, 323–332) (emphasis omitted). The applicant explained that “removing the label before or during the recycling process is not evidence of the recyclability of the label” and that “[r]emoving the label during the recycling process is not equivalent to actually recycling the label.” Id. at 335. As such, a POSITA reading the prosecution history would understand that a label is not recyclable with a PET container, as recited by the independent claims, by removing the label from the PET recycle stream before or during the recycling process.” slip op. at 10

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownOther

    “To determine how a person skill in the art would determine if a shrink label is “recyclable” as recited in the independent claims, we look to how the Specification of the ’422 Patent describes or defines recyclable shrink labels. For example, the ’422 Patent states that PET shrink films are generally considered recyclable if no inks are retained on the film after a caustic wash cycle typically used in PET reclaiming processes. Ex. 1001, 6:61–65. The ’422 Patent further states that labels are fully recyclable if the polymers used are clear, preferably clear PET, and the labels include inks that can be washed off in a “typical PET recycling wash (caustic wash).” Id. at 11:44– 49; see also id. at 11:49–54 (describing embodiments in which the labels are free or substantially free of inks that cannot be washed off in a caustic wash or where the labels are free or substantially free of color plastics that cannot be recycled). The ’422 Patent further discusses “industry standards” for determining whether various embodiments of shrink labels are recyclable. See, e.g., id. at 11:29–53. For example, the Specification states that the “Association for Plastic Recyclers (APR) Critical Guidance Protocol for Clear PET Articles with Labels and Closures (PET-CG-02)” (Ex. 1005) can certify that a film is fully recyclable with a container or bottle. Id. at 11:34– 38. Additionally, the Specification states that labels “are recyclable according to the Evaluation of the Near Infrared (NIR) Sorting Potential of a Whole Plastic Article (SORT-B-01)” (Ex. 1010) and/or the “Evaluation of Sorting Potential for Plastic Articles Utilizing Metal, Metalized, or Metallic Printed Components (SORT-B-03)” (Ex. 1011). Ex. 1001, 11:39–44. The ’422 Patent further states that embodiments of the labels “are fully recyclable. For example, the labels may include inks that can be washed off in a typical PET recycling wash (caustic wash) and the polymers” are preferably clear PET. Id. at 11:44–48. The ’422 Patent thus provides various descriptions or standards to determine the recyclability of shrink labels. For the purposes of addressing the anticipation and obviousness grounds, we determine that any of these standards can be used to determine if a shrink label is “recyclable.” We note that our construction is preliminary and is based on the present record. We invite the parties to further the address the construction of “wherein the recyclable shrink label is recyclable with a PET container” during trial.” slip op. at 12

  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · Nautilus
  Patents in suitUS 11,961,422
• Zhuhai Cosmx Battery Co., Ltd. v. Ninge Amperex Technology LimitedInstitution denied
  PTAB · Aug 20, 2025 · IPR2025-00385 · APJ Debra L Dennett · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–10 were anticipated by Nishikawa or obvious over the asserted combinations.

  RulingsInstitution decision

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

    “review under 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a). The standard for instituting an inter partes review is set forth in 35 U.S.C. § 314(a), which provides that an inter partes review may not be instituted “unless the Director determines . . . there is a reasonable likelihood that the petitioner would prevail with respect to at least [one] of the claims challenged in the petition.” For the reasons set forth below, upon considering the Petition and Preliminary Response, we determine that Petitioner has not established a reasonable likelihood of prevailing with respect to at least one challenged claim. Accordingly, we deny the Petition and decline to institute an inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedOther

    “Petitioner contends that A person of ordinary skill in the relevant art would typically hold an advanced degree in chemistry, material science, and/or a related discipline, and have at least two years of experience with designing and/or fabricating battery separators or have an equivalent level of education, training, and experience. Pet. 5. Patent Owner “adopts the definition proposed by Petitioner” for the purposes of the Preliminary Response. Prelim. Resp. 22. In light of the record before us, and for purposes of this Decision, we adopt Petitioner’s unopposed definition because it is consistent with the specification. We note that neither party indicated that the result would change under any different definition.” slip op. at 9

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

    “Absolute plastic deformation rate” and “relative plastic deformation rate” are the only claim terms disputed in this proceeding, and are clearly defined in the Specification and in claim 1. See Spec. 4:22–27, 4:47–54; 25:31–37. Because we determine that claim construction is not necessary to decide whether to institute, we do 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 11

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

    “Petitioner’s arguments are unconvincing. Petitioner points to nothing in Nishikawa that allows a POSITA to determine L2 (defined as “a length of 4 Tensile strength is measured as force per units area, such as MPa or psi. One MPa equals one N/mm2. Nishikawa Table 1 discloses tensile strength in N/cm. Ex. 1004 Table 1. Petitioner makes calculations to convert the reported N/cm into N/m2 and then to GPa, but provides no explanation for why tensile strength is reported in N/cm or how it was measured. See Pet. 31. the porous substrate after the porous substrate is stretched to breakage and docked along the fracture caused by the breakage and flattened”) or L2 – L0. See generally Pet., Ex. 1004. Petitioner and its expert, Dr. Pecht, fail to adequately explain why tensile strength divided by Young’s modulus is “a proxy for L1 – L2” or why such a proxy is sufficient to disclose the limitation as stated. Instead, we are required to rely on “approximations” and “estimates” with insufficient explanation of why such they are appropriate or adequate. See Pet. 26, 30, 32; see also Ex. 1003 ¶¶ 97, 105–108, 111.” slip op. at 13

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,964,927
• Lam Research Corp. v. Inpria Corp.All claims unpatentable
  PTAB · Apr 18, 2025 · IPR2024-00033 · APJ Grace Karaffa Obermann · IPR · Final written decision

  Claims 1–12 are unpatentable as anticipated by the ’888 Publication; Patent Owner’s motion to add substitute claims 13–23 is granted.

  RulingsFinal written decision

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportDecided for petitioner

    “priority issue are based on the cited disclosures of the ’867 application discussed above. Ex. 2009 ¶ 29. For the reasons discussed above, we do not view the cited disclosures as sufficiently supporting Dr. Banerjee’s conclusion that the ’867 application provides support for claim 1’s average thickness range (id.) and, therefore, give this testimony little weight. Stated somewhat differently, Dr. Banerjee’s advances an opinion (really a legal one) that is not supported by the facts and not in line with the caselaw discussed in this section (such as RAI).” slip op. at 26

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityReference is prior artPrinted publication establishedDecided for petitioner

    “priority issue are based on the cited disclosures of the ’867 application discussed above. Ex. 2009 ¶ 29. For the reasons discussed above, we do not view the cited disclosures as sufficiently supporting Dr. Banerjee’s conclusion that the ’867 application provides support for claim 1’s average thickness range (id.) and, therefore, give this testimony little weight. Stated somewhat differently, Dr. Banerjee’s advances an opinion (really a legal one) that is not supported by the facts and not in line with the caselaw discussed in this section (such as RAI).” slip op. at 26

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

    “d) Conclusion For the reasons discussed above, Petitioner has demonstrated by a” slip op. at 30

  • PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, grantedGranted

    “For these reasons, Patent Owner has met its burden to show by a” slip op. at 34

  Patent outcomesUS 9,823,564 unpatentable
  § 102 anticipationcites Phillips · KSR · Graham · Nautilus
  Patents in suitUS 9,823,564
• Tennant Company v. Oxygenator Water Technologies, Inc.No claims unpatentable
  PTAB · Feb 28, 2025 · IPR2021-00625 · APJ Kristina M Kalan · IPR · Remand

  Claims 13, 14, and 17–27 were not shown unpatentable because Tennant did not establish that Wikey or Davies inherently disclosed the claimed microbubbles and nanobubbles.

  RulingsRemand decision

  • RemandOther

    “The Federal Circuit vacated and remanded our anticipation determinations as to claims 13, 14, and 17–27. Tennant, 11.1 The Federal Circuit further stated: “Because we vacate and remand to the Board to consider Tennant’s anticipation argument, we do not reach Tennant’s obviousness arguments (which depends on its contention that either Wikey or Davies produce nanobubbles).” Id. at 11. On September 19, 2024, we authorized the parties to file supplemental briefing, stating also that the “parties are not authorized to present new factual assertions, provide additional exhibits, or raise new arguments beyond those directed to the issues raised in the remand.” Ex. 3001. Pursuant to this authorization, Petitioner filed an Opening Brief on Remand (Paper 61; “Pet. Br. Rem.”) in support of its contentions. Patent Owner filed a Lead Brief on Remand (Paper 62; “PO Br. Rem.”) in support of its contentions. Petitioner filed a Reply Brief on Remand (Paper 66; “Pet. Reply Br. Rem.”). Patent Owner filed a Responsive Brief on Remand (Paper 65; “PO Resp. Br. Rem.”).” slip op. at 3

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element) › Inherent disclosureInherency not foundNot shown unpatentable

    “Accordingly, and in line with our previous determination that “Wikey appears to disclose each limitation of claim 13 except ‘microbubbles and nanobubbles having a bubble diameter of less than 50 microns’” (Final Dec. 20), we determine that Petitioner has not demonstrated that Wikey inherently discloses microbubbles or nanobubbles. Accordingly, Petitioner has not demonstrated that Wikey discloses every limitation of claim 13.” slip op. at 56

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot reached

    “The Federal Circuit vacated and remanded our anticipation determinations as to claims 13, 14, and 17–27. Tennant, 11.1 The Federal Circuit further stated: “Because we vacate and remand to the Board to consider Tennant’s anticipation argument, we do not reach Tennant’s obviousness arguments (which depends on its contention that either Wikey or Davies produce nanobubbles).” Id. at 11.” slip op. at 3

  Patent outcomesUS RE45,415 not shown unpatentable
  § 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
• Lam Research Corp. v. Inpria Corp.Instituted
  PTAB · Apr 24, 2024 · IPR2024-00033 · APJ Grace Karaffa Obermann · IPR · Institution

  The Board instituted IPR of claims 1–12 on all asserted grounds, finding a reasonable likelihood that the ’888 Publication anticipates the claims.

  RulingsInstitution decision

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

    “review. 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a) (2023). We may institute review, however, only upon a determination that “there is a reasonable likelihood that the petitioner would prevail with respect to at least [one] of the claims challenged in the petition.” 35 U.S.C. § 314(a). Applying that standard, for reasons set forth below, we institute an inter partes review.” slip op. at 2

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportDecided for petitioner

    “The test for written description support “requires an objective inquiry into the four corners of the specification from the perspective of a person of ordinary skill in the art.” Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc). The Specification must clearly allow persons of ordinary skill in the art to recognize that the inventors invented what is claimed, and “reasonably” convey to those skilled in the art that the inventors “had possession of the claimed subject matter as of the filing date.” Id. The “level of detail required to satisfy the written description requirement varies depending on the nature and scope of the claims and on the complexity and predictability of the relevant technology.” Id.” slip op. at 9

  • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner

    “The test for written description support “requires an objective inquiry into the four corners of the specification from the perspective of a person of ordinary skill in the art.” Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc). The Specification must clearly allow persons of ordinary skill in the art to recognize that the inventors invented what is claimed, and “reasonably” convey to those skilled in the art that the inventors “had possession of the claimed subject matter as of the filing date.” Id. The “level of detail required to satisfy the written description requirement varies depending on the nature and scope of the claims and on the complexity and predictability of the relevant technology.” Id.” slip op. at 9

  • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDecided for petitioner

    “Even if we accept that the Examiner previously considered the effective filing date of claims 1–12, we determine that Petitioner identifies a material error by the Examiner. Id. We agree with Petitioner that “the Examiner never questioned the priority claim made by” the applicant during prosecution. Pet. 63. Further, the Examiner did not issue any rejection concerning whether the application that led to the ’564 patent supports the challenged claims. Id.; see id. at 63 n.20 (citing Ex. 1007, 489). Against that backdrop, we find Petitioner shows sufficiently that the Examiner materially erred by accepting the applicant’s priority date claim, as shown by our analysis above, and, as a result, materially erred by failing to appreciate the prior art status of the ’888 Publication, which Petitioner has demonstrated by a reasonable likelihood, on this record, anticipates the challenged claims. Id. at 63. Accordingly, we do not exercise our discretion to deny review under Section 325(d) with respect to the ground that asserts anticipation by the ’888 Publication.10” slip op. at 16

  Claim construction§ 102 anticipation§ 112 disclosureDiscretionary denialcites Phillips
  Patents in suitUS 9,823,564
• Arkema Inc. / Arkema France v. Honeywell International Inc.All claims unpatentable
  PTAB · Aug 25, 2022 · PGR2016-00012 · APJ Sheldon M Mcgee · PGR · Remand

  Claims 1–20 are unpatentable under § 102(a) for prior public use; the Board did not reach the remaining anticipation, obviousness, and enablement grounds.

  RulingsRemand decision

  • RemandOther

    “On October 1, 2019, the Federal Circuit held that we “abused [our] discretion by assuming the authority that 35 U.S.C. § 255 expressly delegates to the Director: to determine when a Certificate of Correction is appropriate,” and vacated our Final Written Decision. Honeywell Int’l Inc. v. Arkema Inc., 939 F.3d 1345 (Fed. Cir. 2019). The Federal Circuit instructed us to “authorize Honeywell to file a motion seeking leave to petition the Director for a Certificate of Correction.” Id. at 1351. Pursuant to the Federal Circuit’s mandate, we gave our authorization, and Patent Owner filed its Motion for Leave to Request a Certificate of Correction. PGR11 Paper 61; PGR12 Paper 41. After additional briefing from the parties was complete, we granted Patent Owner’s Motion. PGR11 Paper 77; PGR12 Paper 57. Patent Owner filed its Request for a Certificate of Correction, as well as a Petition to Accept [Unintentionally] Delayed Claim to Priority under 35 U.S.C. § 120 and 37 C.F.R. § 1.78. PGR11 Ex. 2174; PGR12 Ex. 2172.” slip op. at 3

  • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner

    “Synthes USA, LLC v. Spinal Kinetics, Inc., 734 F.3d 1332, 1344 (Fed. Cir. 2013). And, although there are no bright-line rules for the amount of disclosure needed in an unpredictable art, that amount “necessarily changes with each invention” and “changes with progress in the field.” Ariad, 598 F.3d at 1351. Here, we find that the art of AAC was unpredictable and that a heat-transfer composition for AAC required specific technical features that were unpredictable and unexpected. Thus, we conclude that the ’525 application requires a more-detailed disclosure than would be required in a predictable field to adequately demonstrate possession of a heat-transfer composition consisting essentially of HFO-1234yf and PAG for use in AAC. (iii) Disclosure in the ’525 Application With these background findings in mind, we now turn to the four corners of the ’525 application—and we find that the ’525 application does not contain the detailed disclosure needed in this case to reasonably convey possession of a heat-transfer composition consisting essentially of HFO- 1234yf and PAG for use in AAC.” slip op. at 37

  • Skill levelSkill level board ownDecided for patent owner

    “develops new refrigerants for use as heat transfer fluids. Ex. 1002 ¶ 149. Such a person would have had a Ph.D. in Chemistry, Chemical Engineering, Mechanical Engineering, Material Science, or a related field or discipline and at least 3 to 5 years of experience, or alternatively an M.S. degree and 5 to 10 years of experience. Id. Patent Owner’s Declarant, Dr. Bivens, provides a similar description of the person of ordinary skill in the art, stating that such a person would have a B.S. degree in Chemical Engineering or Chemistry, and five years of work experience, or a Ph.D. or M.S. degree and 2–3 years of experience. Ex. 2001 ¶ 23. Based on these descriptions, we find that the parties’ definitions of ordinary skill in the art are substantially the same, and agree with the parties that an ordinarily skilled artisan would be educated in the Chemical and Chemical Engineering arts or related disciplines. We also agree with the parties that a person having less formal education, such as a B.S. or M.S. degree, would require more years of experience than a person with more formal education, such as a Ph.D., to qualify as an ordinarily skilled artisan. We also find that neither party states how any difference in the parties’ articulated levels of skill impacts this proceeding. Thus, our analysis would be the same regardless of any minor differences between the parties’ respective articulations. Finally, we note that the level of ordinary skill in the art is reflected by the prior art of record. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art itself can reflect the appropriate level of ordinary skill in the art).” slip op. at 20

  • Novelty / Anticipation (§102) › Prior-art status of a reference › On-sale bar (Pfaff, Helsinn)UnpatentableUnpatentable

    “Tr. 114:15–115:18 (emphases added). Thus, we find that Patent Owner does not contest that a heat-transfer composition consisting essentially of HFO- 1234yf and PAG for AAC was in public commercial use before the March 26, 2014, filing date of the ’017 patent. Accordingly, we find that Petitioner’s evidence, together with Patent Owner’s concessions, demonstrates by a preponderance of evidence that the claimed subject matter of the ’017 patent was in commercial use before its March 26, 2014, effective filing date. See Ex. 1002 ¶¶ 399–409. In particular, as to claims 1, 3–10, 12, 13, and 15–20, we credit Dr. Brown’s uncontested testimony that the refrigerant-lubricant AAC composition of the Ford Transit Custom Bus, the Mazda CX 5 (2.0i and 2.2D), and the Opel Mocca used HFO-1234yf and a PAG lubricant as early as 2012. Ex. 1002 ¶ 399 (citing Ex. 101324, 2, 38, 55, 70). We also credit Dr. Brown’s 24 Behr Hella Services, Refrigerant and Oil Filling Quantities Passenger Cars & Commercial Vehicles 2014–15. PGR12 Ex. 1013. (“Service Guide”). PGR12 Ex. 1013. The Service Guide provides tables setting forth specifications for refrigerant type, refrigerant quantity, vehicle manufacturers’ original equipment compressor oil type, and oil filling quantity for the air-conditioning system of each vehicle listed in the tables. Id. at 2–3. Petitioner and Dr. Brown direct us to the Sevice Guide’s entries calculations, which show that the Ford Transit Custom Bus had an AAC refrigerant-lubricant composition of 26.7% of PAG lubricant and 73.3% of HFO-1234yf (Ex. 1002 ¶ 401 (citing Ex. 1013, 38)); the Mazda CX 5 2.0i had 16.7% PAG lubricant and 83.3% HFO-1234yf (Ex. 1002 ¶ 402 (citing Ex. 1013, 55)); the Mazda CX 5 2.2D had a 17.5% PAG lubricant and 82.5% HFO-1234yf (id.); and the Opal Mocca had 11.6% PAG lubricant and 88.4% HFO-1234yf (Ex. 1002 ¶ 402 (citing Ex. 1013, 70)). As to dependent claims 2, 11, and 14, which all require that the lubricant is present “in an amount from about 30% to about 50% weight,” we credit Dr. Brown’s uncontested testimony that the refrigerant-lubricant composition of the Ford Transit Custom Bus recited lubricant amount. Ex. 1002 ¶ 403. In particular, we agree with Dr. Brown that, because the lubricant accounts for 26.7% of the AAC refrigerant-lubricant composition in the Ford Transit Custom Bus, the lubricant makes up “about 30%” of the refrigerant-lubricant composition as claimed. Id. For these reasons, we find that Petitioner has met its burden to show that claims 1–20 are unpatentable for anticipation under § 102(a)(1).” slip op. at 55

  Patent outcomesUS 9,157,017 unpatentable
  § 102 anticipation§ 112 disclosure
  Patents in suitUS 9,157,017
• Arkema Inc. / Arkema France v. Honeywell International Inc.All claims unpatentable
  PTAB · Aug 25, 2022 · PGR2016-00011 · APJ Grace Karaffa Obermann · PGR · Remand

  Claims 1–20 are unpatentable under § 102(a) for prior public use; the Board did not reach the other anticipation, obviousness, and enablement grounds.

  RulingsRemand decision

  • RemandOther

    “On October 1, 2019, the Federal Circuit held that we “abused [our] discretion by assuming the authority that 35 U.S.C. § 255 expressly delegates to the Director: to determine when a Certificate of Correction is appropriate,” and vacated our Final Written Decision. Honeywell Int’l Inc. v. Arkema Inc., 939 F.3d 1345 (Fed. Cir. 2019). The Federal Circuit instructed us to “authorize Honeywell to file a motion seeking leave to petition the Director for a Certificate of Correction.” Id. at 1351. Pursuant to the Federal Circuit’s mandate, we gave our authorization, and Patent Owner filed its Motion for Leave to Request a Certificate of Correction. PGR11 Paper 61; PGR12 Paper 41. After additional briefing from the parties was complete, we granted Patent Owner’s Motion. PGR11 Paper 77; PGR12 Paper 57. Patent Owner filed its Request for a Certificate of Correction, as well as a Petition to Accept [Unintentionally] Delayed Claim to Priority under 35 U.S.C. § 120 and 37 C.F.R. § 1.78. PGR11 Ex. 2174; PGR12 Ex. 2172.” slip op. at 3

  • Skill levelSkill level board ownDecided for petitioner

    “develops new refrigerants for use as heat transfer fluids. Ex. 1002 ¶ 149. Such a person would have had a Ph.D. in Chemistry, Chemical Engineering, Mechanical Engineering, Material Science, or a related field or discipline and at least 3 to 5 years of experience, or alternatively an M.S. degree and 5 to 10 years of experience. Id. Patent Owner’s Declarant, Dr. Bivens, provides a similar description of the person of ordinary skill in the art, stating that such a person would have a B.S. degree in Chemical Engineering or Chemistry, and five years of work experience, or a Ph.D. or M.S. degree and 2–3 years of experience. Ex. 2001 ¶ 23. Based on these descriptions, we find that the parties’ definitions of ordinary skill in the art are substantially the same, and agree with the parties that an ordinarily skilled artisan would be educated in the Chemical and Chemical Engineering arts or related disciplines. We also agree with the parties that a person having less formal education, such as a B.S. or M.S. degree, would require more years of experience than a person with more formal education, such as a Ph.D., to qualify as an ordinarily skilled artisan. We also find that neither party states how any difference in the parties’ articulated levels of skill impacts this proceeding. Thus, our analysis would be the same regardless of any minor differences between the parties’ respective articulations. Finally, we note that the level of ordinary skill in the art is reflected by the prior art of record. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art itself can reflect the appropriate level of ordinary skill in the art).” slip op. at 20

  • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateNot shown unpatentable

    “We agree with Petitioner that the ’525 application’s statement that the compounds are “adaptable for use” weighs against a finding of adequate written description. First, “adaptable for use” is vague, as Dr. Bivens acknowledges. See Ex. 1177, 151:15 (testifying that “adaptable for use can have a wide range of meaning”). Second, the ’525 application gives no direction on how a skilled artisan would need to adapt any particular composition for use in AAC, or even if any “adaptation” was necessary. We find that such a teaching is important in this case to show that the inventors had possession of the claimed invention, given our findings above that the art of AAC was unpredictable and that a heat-transfer composition for AAC required specific technical features that were unpredictable and unexpected. For completeness, we again reject Patent Owner’s argument that “[t]o show the inventors possessed claim 1 requires no more” than the statement in the written description that “‘the compositions of the present invention are believed to be adaptable . . . with or without system modification.’” PGR12 Resp. 27–28 (quoting Ex. 1001, 7:4–8). Regardless of the exact wording of claim 1, the inventors “still [had to have] describe[d] some way of performing the claimed methods.” Ariad, 598 F.3d at 1355. And here, with merely a passing reference to AAC, the ’525 application fails to provide any credible “technologic knowledge” to demonstrate to an ordinarily skilled artisan that Patent Owner “was in possession of the invention that is claimed.” Id.” slip op. at 43

  • Novelty / Anticipation (§102) › Prior-art status of a reference › On-sale bar (Pfaff, Helsinn)UnpatentableUnpatentable

    “unless . . . the claimed invention was . . . in public use . . . before the effective filing date of the claimed invention.” 35 U.S.C. § 102(a)(1). “The proper test for the public use prong . . . is whether the purported use was accessible to the public or was commercially exploited.” Delano Farms Co. v. Cal. Table Grape Comm’n, 778 F.3d 1243, 1247 (Fed. Cir. 2015) (quotation omitted). “Commercial exploitation is a clear indication of public use . . . .” Invitrogen Corp. v. Biocrest Mfg., L.P., 424 F.3d 1374, 1380 (Fed. Cir. 2005).” slip op. at 53

  Patent outcomesUS 9,157,017 unpatentable
  § 102 anticipation§ 112 disclosure
  Patents in suitUS 9,157,017

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.