PTAB
Advanced fields
4 decisions · 422msnewest first
  • PTAB · Jan 14, 2026 · PGR2025-00059 · APJ Devon Zastrow Newman · PGR · Institution

    The Board instituted post-grant review of claims 1–4 on all four asserted grounds, finding a sufficient preliminary showing of obviousness and lack of enablement.

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

      “V. CONCLUSION Petitioner has, at this stage, established that it will more likely than not prevail in showing that at least one of the challenged claims is unpatentable. This determination is, however, based on a preliminary record and is not final on any issues of patentability. We will make a final determination on the patentability of the challenged claims, as necessary and applying the preponderance of the evidence standard, based on a fully developed record through trial. VI. ORDER In consideration of the foregoing, it is hereby: ORDERED that, pursuant to 35 U.S.C. § 324(a) post grant review of claims 1–4 of the ’233 patent is hereby instituted on the grounds set forth in the Petition, commencing on the entry date of this Order, and pursuant to 35 U.S.C. § 324(d) and 37 C.F.R. § 42.4, notice is hereby given of the institution of a trial; and” slip op. at 40

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Patent Owner does not proffer a description of a POSA. See generally, Prelim. Resp. For the purposes of this decision, on the record at this time, we find that Petitioner’s definition appears consistent with the level of skill shown in the prior art references of record, and apply it herein. See Daiichi Sankyo Co. v. Apotex, Inc., 501 F.3d 1254, 1256 (Fed. Cir. 2007). We invite the parties to further address the definition of a POSA during trial should they find it necessary.” slip op. at 7

    • Expert testimonyPetitioner expert discountedDecided for patent owner

      “In addition, the opinion stated in the Pomper Declaration that “the term of ‘low molecular weight’ is well accepted in the chemical arts” and the declarant “recognize[s] that low molecular weight compounds would have a molecular weight of typically from about 50 Daltons to about 1,500 Daltons” is offered by a co-inventor. We, as factfinder, have discretion to weigh the credibility of expert witnesses and to give each item of evidence such weight as appropriate. See In re Am. Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1368 (Fed. Cir. 2004) (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”). In this case, we find that the published references on metabolites do not support the opinion. In re Am. Acad. of Sci. Tech Ctr., 367 F.3d at 1368 (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”) US-121, of which Dr. Pomper is lead inventor, also uses the term “low molecular weight”—without further characterization of the term—and is uninformative as to the meaning of the term. See Ex. 1006, ¶ 12. In addition, Patent Owner’s definition does not appear to apply to all compounds claimed in US-121.5” slip op. at 11

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

      “limited to Patent Owner’s proposed “from about 50 Daltons to about 1,500 Daltons.” The cited evidence relied on in the Pomper Declaration to define “low molecular weight” as a term well accepted in the chemical arts relates to metabolomics and metabolites. See Ex. 1002, 169, (specifically, ¶ 17 of Dr. Pomper’s declaration). Patent Owner admits that Dr. Pomper’s testimony is about molecules that differ from the claimed imaging and radiotherapeutic agents targeting FAP-α, but argues that the testimony is still relevant for purposes of explanation. Prelim Resp. 21. While it may be relevant, the testimony is not persuasive in light of the Specification. We find the uncontested fact that several of the B moieties alone—without the A moiety or L linker—specifically identified in the ’233 patent fall outside of Patent Owner’s proposed definition persuasive, as we normally do not interpret claim terms in a way that excludes examples disclosed in the specification. See, e.g., Verizon Servs. Corp. v. Vonage Holdings Corp., 503 F.3d 1295, 1305 (Fed. Cir. 2007) (rejecting proposed claim interpretation that would exclude disclosed examples in the specification). The cases cited by Patent Owner supporting that a claim term may be construed to exclude embodiments where the prosecution history supports such construction are factually distinguishable from the instant case as they regard instances of specific prosecution history disclaimer, clear prosecution disavowal, or relate to a specific definition of the terms in the Specification for the term being construed. Here, “low molecular weight” is not defined in the Specification, but, as Petitioner argues (see Pet. 21–25) is characterized as “demonstrat[ing] faster pharmacokinetics and a higher specific signal within clinically convenient times after administration” and that it “can be synthesized in radiolabeled form more easily.” Ex.1001, 13:33–50, 14:56– 16:14, 17:9–20. We are persuaded by the testimony of Dr. Zeglis, Petitioner’s declarant, that compounds weighing over 1500 Da may share those same behaviors, along with certain identified B moieties disclosed as embodiments. See Ex. 1003 ¶ 83.” slip op. at 10

    Claim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham
    Patents in suitUS 12,115,233
  • 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
  • PTAB · Jul 16, 2025 · PGR2025-00012 · APJ Debra L Dennett · PGR · Institution

    Instituted PGR on claims 1–3 based on five grounds; the Board found each ground met the institution threshold on the preliminary record.

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

      “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 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). A post-grant review may also be instituted when “the petition raises a novel or unsettled legal question that is important to other patents or patent applications.” See id. § 324(b). Applying that standard on behalf of the Director (37 C.F.R. § 42.4(a)) and in consideration of the Petition, Preliminary Response, and the evidence of record, we determine that the information presented shows that it is more likely than not that Petitioner would prevail in establishing unpatentability of claims 1–3 of the ’201 patent.” slip op. at 2

    • Skill levelSkill level board ownOther

      “At this stage of the proceedings, neither Petitioner’s nor Patent Owner’s proffered definitions of the level of skill appear appropriate. Petitioner’s proposal requires as little as a bachelor’s degree in organic chemistry and two years of experience as a laboratory technician working on development of molecules with targeted biological activity, and an ambiguous “understanding” of certain processes. Patent Owner’s proposal, other the other hand, requires multiple years of both formal training and actual, practical experience in highly specialized fields that involve detection of optical or radiolabeled compounds and use of molecular imaging techniques such as PET and SPECT. For the purposes of this decision, on the record at this time, we find that a POSA would have had a Ph.D. in chemistry, biochemistry, or a comparable field or an M.D., and at least four years of experience in chemical synthesis of compounds that may be used to target biologically-significant tissues. This definition appears consistent with the level of skill shown in the prior art references of record. See Daiichi Sankyo Co. v. Apotex, Inc., 501 F.3d 1254, 1256 (Fed. Cir. 2007). The parties will have the opportunity to cross-examine Dr. Martin and Dr. VanBrocklin in this proceeding to develop a full record for us to determine the weight that each expert’s testimony should be given. We invite the parties to further brief the definition of a POSA here, and whether we should discount either experts’ testimony due to lack of qualifications.” slip op. at 8

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Other

      “c) Analysis On the present record, we find that “low molecular weight” is not limited to Patent Owner’s proposed “from about 50 Daltons to about 1,500 Daltons.” The cited evidence relied on in the Pomper Declaration all concerns metabolomics and metabolites, and we find no reason that even a vague definition of metabolites applies to the claimed compounds. See Ex. 1002, ¶ 102. Moreover, the uncontested fact that several of the B moieties alone—without the A moiety or L linker—specifically identified in the ’201 patent fall outside of Patent Owner’s proposed definition is persuasive (see id., ¶ 103), as we normally do not interpret claim terms in a way that excludes examples disclosed in the specification. See, e.g., Verizon Servs. Corp. v. Vonage Holdings Corp., 503 F.3d 1295, 1305 (Fed. Cir. 2007) (rejecting proposed claim interpretation that would exclude disclosed examples in the specification). In addition, the opinion stated in the Pomper Declaration that “the term of ‘low molecular weight’ is well accepted in the chemical arts’” and the declarant “recognize[s] that low molecular weight compounds would have a molecular weight of typically form about 50 Daltons to about 1,500 Daltons” is offered by a co-inventor. We, as factfinder, have discretion to weigh the credibility of expert witnesses and to give each item of evidence such weight as appropriate. See In re Am. Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1368 (Fed. Cir. 2004) (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”). In this case, we find that the published references on metabolites do not support the opinion. In re Am. Acad. of Sci. Tech Ctr., 367 F.3d at 1368 (Fed. Cir. 2004) (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”) The Pomper reference (Ex. 1006) also uses the term “low molecular weight”—without further characterization of the term—and is uninformative as to the meaning of the term. See Ex. 2002, ¶ 60; Ex. 1006, ¶ 12. The table giving the molecular weight of a “selection of compounds disclosed by Pomper” (see Ex. 2002, ¶ 62) is not persuasive in defining “low molecular weight,” as it does not explain how those included were “selected” and does not include molecular weights for all of the examples.7 In addition, Patent Owner’s definition does not appear to apply to all claimed compounds.8 7 At least one of the examples (SRV73) not included in the table appears to have a molecular weight well over “about 1,500 Daltons.” 8 See, e.g., claim 113 of Ex. 1006. Patent Owner’s arguments distinguishing “low molecular weight” slip op. at 11

    • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed petitioner constructionDecided for petitioner

      “The ’201 patent defines “alkyl” as “a straight (i.e., unbranched) or branched chain, acyclic or cyclic hydrocarbon group, or combination thereof” “ that has “the number of carbon atoms designated (i.e., C1–C10 means one to ten carbons, including 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 carbons)” and “[i]n particular embodiments, the term ‘alkyl’ refers to C1-20 inclusive, including 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20 carbons” “unless otherwise stated.” Ex. 1001, 39:44–58. Although substituents at the R1x position in the claims are limited to “C1-6alkyl,” those at position R3x are not. Ex. 1001, Certif. Corr. Patent Owner’s representation that “Jansen I provides ‘the following definitions’ stating that ‘alkyls groups of this invention comprise from 1 to 6 carbon atoms’” is inaccurate. See Prelim. Resp. 19. In fact, Jansen I states: The term “alkyl” by itself or as part of another substituent refers to a fully saturated hydrocarbon of Formula CxH2x+1 wherein x is a number greater than or equal to 1. Generally, alkyl groups of this invention comprise from 1 to 6 carbon atoms. Alkyl groups may be linear or branched and may be substituted as indicated herein. When a subscript is used herein following a carbon atom, the subscript refers to the number of carbon atoms that the named group may contain. Ex. 1007, 22:16–23 (emphasis added). Neither the ’201 patent nor its incorporation by reference of Jansen I would have conveyed to a POSA that the “(CO)alkyl” of the substituent in the R3x position in the claims is intended to comprise from one to six carbon atoms or is limited to any particular length and size. “(C(O)alkyl,” having no number of carbon atoms designated, means” slip op. at 15

    Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham · Nautilus
    Patents in suitUS 11,938,201
  • 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

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.