• Fluidmaster, Inc. v. Danco, Inc.Some claims unpatentable
  PTAB · Mar 5, 2026 · IPR2024-00634 · APJ Meredith C Petravick · IPR · Final written decision

  Claims 1, 3, 8–13, 15, 16, and 19–24 are unpatentable over Brown and Ho, with claims 16 and 19 also relying on the Quick Connection Art; the remaining challenged claims were not shown unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “Patent Owner proposes that: A [person of ordinary skill in the art (“POSITA”)] in the field to which the ’105 Patent is directed would have had at least a Bachelor of Science degree in mechanical engineering or a related field or, as a substitute, at least two years of work or” slip op. at 9

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

    “of “integrally molded with” as “molded together as a single structure.” Paper 21, 15.” slip op. at 11

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

    “Patent Owner responds that: a POSITA would not have been motivated to make the proposed modification, nor does the Petition include any analysis regarding why a POSITA would be motivated to move from a vertical extended portion to a radial extended portion. Indeed, a radial extended portion is directly counter to the stated goals of Brown (e.g., reducing noise caused by turbulence), at least insofar as it introduces another sudden directional change into the fluid flow system. PO Resp. 58–59 (citing Ex. 2013 ¶ 242).” slip op. at 32

  • Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner

    “Patent Owner argues that the ’105 patent claims were “fully supported as of the filing date of at least the ’606 Application . . . March 11, 2004” because the ’606 Application discloses regulating water flow and a POSITA would know that appropriate devices for regulating water flow includes nonadjustable waterflow restrictors. PO Resp. 63–65; PO Sur-reply 26–29. Patent Owner’s argument is persuasive. The ’606 Application discloses: [W]hen the toilet fill valve 100 is open and water flows from the water inlet 103 to the water outlets 106 and into a toilet tank, an amount of water is also supplied to the bowl fill valve inlet 113 that flows through the bowl fill valve 109 and out the bowl fill valve outlet 116. By virtue of the manual setting of handle 119 of the bowl fill valve 109, the flow of water through the bowl fill valve 109 is regulated. In this manner, the flow of water is regulated so that enough water flows out of the bowl fill valve 109 to fill a toilet bowl without wasting any water down a drain. seen from the passage above, the ’606 Application discloses regulating an amount of water supplied to a toilet bowl using a valve (i.e., a water flow regulator). Ex. 2013 ¶ 288. Further, the ’606 Application states: The bowl fill valve 109 may be, for example, a ball valve, a gate valve, a globe valve, a plug valve, a diaphragm valve, a butterfly valve, a needle valve, a sliding gate, a quick turn valve, a knife valve or any other appropriate type of valve as can be appreciated by those with ordinary skill in the art.” slip op. at 42

  Patent outcomesUS 9,103,105 mixed
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 9,103,105
• Nxtgen Toys, LLC v. Zipstring, LLCAll claims unpatentable
  PTAB · Feb 20, 2026 · IPR2024-01213 · APJ Richard H Marschall · IPR · Final written decision

  Claims 1–4, 12, and 15–17 are unpatentable; substitute claim 27 is allowed, while substitute claims 21–26 and 28 are denied as obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person having ordinary skill in the art at the time of the invention “was typically a person with a bachelor’s degree in mechanical engineering, aerospace engineering, physics, or other science or 6 Patent Owner does not rely on any objective indicia of nonobviousness in this proceeding. engineering based degree that [was] familiar with general principles of mechanics and aerodynamics with at least two years of experience in product design and development in the field of toys or other amusement type devices.” Pet. 32 (citing Ex. 1002 ¶¶ 2–6, 22–26). Patent Owner states that it submitted the following proposal for a POSITA in the related district court litigation: “[a POSITA] would have had at least a B.S. degree in Mechanical Engineering, Electrical Engineering, Aerospace Engineering, Industrial Design, Product Design, or similar field, with at least two years industry experience in one of these fields, and such POSITA would have been familiar with general principles of mechanics, fluid mechanics and aerodynamics.” PO Resp. 4–5. We note that the parties’ proposals overlap considerably, and neither party argues the inadequacy of the other party’s proposal or that any patentability issue in this case turns on the resolution of this issue. We find Petitioner’s definition consistent with the problems and solutions disclosed in the ’774 patent and prior art of record, and adopt it as our own. See, e.g., GPAC, 57 F.3d at 1579 (approving the determination of the level of ordinary skill in the art by appeal to the references of record). We would arrive at the same findings and conclusions in this Decision if we adopted Patent Owner’s proposal.” slip op. at 7

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

    “Id. at 1312–13. Only terms in controversy need be construed, and only to the extent necessary to resolve the controversy. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). Petitioner contends that no “term requires construction to resolve the invalidity grounds presented in this Petition since the prior art renders claims 1–4, 12, and 15–17 unpatentable under any reasonable interpretation of the claims.” Pet. 7. Patent Owner argues that it “does not believe express claim constructions are necessary during this proceeding because the claims can readily be given their ordinary and customary meaning in the context of the patent at the time it was filed.” PO Resp. 5. Based on the parties’ positions and our view of the record, we need not expressly construe any claim limitations to resolve the issues in this Decision. To the extent that any implicit claim construction issues relate to the issues raised by the parties, we address them in the context of the parties’ patentability arguments below.” slip op. at 9

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

    “string, and that adding Scorch’s slot removes this arguably inconvenient process by allowing insertion and removal of a string without removing and reinstalling any aspects of the housing. See Pet 85–86 (citing Ex. 1002 ¶¶ 174–175; Ex. 1007, 3:30–3:53, 6:03; Ex. 1008, 3:46–4:45); Pet. Reply 18–20 (citing in part Ex. 2002 ¶ 187 (Dr. Janét’s testimony that Wagner’s removal and reinstallation of a cover “may be viewed as an inconvenient process”)). Making insertion and removal of the string easier and quicker provides a notable advantage over Wagner’s existing device. See id. Scorch itself supports this argument and the related expert testimony because it discusses insertion and removal of strings and stated that the slot allows a user to “swap them out really quick.” Ex. 1007, 3:30–53. Petitioner also persuasively argues that a POSITA would know how to add the slot while maintaining the proper operation of the device, such as allowing insertion and removal of the string and avoiding inadvertent exiting of the string from the device. See Pet. 86–87 (citing Ex. 1002 ¶¶ 175–176; Ex. 1007, 4:00–30, Ex. 1008, 2:49–52); Pet. Reply 19, 21 (citing Ex. 1002 ¶¶ 174–176). We find Petitioner’s arguments and reasoning in support of adding Scorch’s slot to Wagner’s housing straightforward and persuasive. Patent Owner’s arguments against the combination do not directly refute Petitioner’s reasoning or cast doubt on Scorch’s statement that its slot enables “quick” insertion and removal of a string—quicker than Wagner’s method that requires removal and replacement of a cover on its housing. See PO Resp. 16–22; PO Sur-reply 14–20; Ex. 2002 ¶ 187 (acknowledging inconvenience of Wagner’s existing process for insertion and removal of a string). Patent Owner suggests that Petitioner’s proposed combination fails to take into consideration certain drawbacks such as the risk of inadvertent string exit from the housing or slot, but Petitioner expressly addresses such concerns in the Petition. See PO Resp. 18 (stating that Scorch’s slotted funnel may allow the string to “shoot out the slot” and that Scorch addresses this by adding “a bent wire” to “prevent the string from coming out the side”); PO Sur-reply 16–17; Pet. 86–87 (arguing that Wagner’s flanges would help to trap the string in place, but if not, Scorch’s additional structures could be used to restring the string and “to further reduce the risk of a string inadvertently exiting” the device). We agree with Petitioner that a POSITA would understand how to incorporate Scorch’s slot without causing inadvertent removal of the string—using structures already present in Wagner and Scorch—and the need to add such unclaimed structurers does not teach away from the combination as Patent Owner suggests. See Pet. 86–87; PO Resp. 22. We also agree with Petitioner that a POSITA would understand how to make minor modifications, if necessary, to allow insertion and removal of the string around Wagner’s flanges. See Pet. Reply 21 (citing Ex. 1002 ¶¶ 174–176).” slip op. at 26

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

    “refute Petitioner’s reasoning or cast doubt on Scorch’s statement that its slot enables “quick” insertion and removal of a string—quicker than Wagner’s method that requires removal and replacement of a cover on its housing. See PO Resp. 16–22; PO Sur-reply 14–20; Ex. 2002 ¶ 187 (acknowledging inconvenience of Wagner’s existing process for insertion and removal of a string). Patent Owner suggests that Petitioner’s proposed combination fails to take into consideration certain drawbacks such as the risk of inadvertent string exit from the housing or slot, but Petitioner expressly addresses such concerns in the Petition. See PO Resp. 18 (stating that Scorch’s slotted funnel may allow the string to “shoot out the slot” and that Scorch addresses this by adding “a bent wire” to “prevent the string from coming out the side”); PO Sur-reply 16–17; Pet. 86–87 (arguing that Wagner’s flanges would help to trap the string in place, but if not, Scorch’s additional structures could be used to restring the string and “to further reduce the risk of a string inadvertently exiting” the device). We agree with Petitioner that a POSITA would understand how to incorporate Scorch’s slot without causing inadvertent removal of the string—using structures already present in Wagner and Scorch—and the need to add such unclaimed structurers does not teach away from the combination as Patent Owner suggests. See Pet. 86–87; PO Resp. 22. We also agree with Petitioner that a POSITA would understand how to make minor modifications, if necessary, to allow insertion and removal of the string around Wagner’s flanges. See Pet. Reply 21 (citing Ex. 1002 ¶¶ 174–176). At best, Patent Owner’s arguments on this issue establish potential drawbacks in Petitioner’s proposed combination, but drawbacks alone do not defeat Petitioner’s obviousness rationale that includes readily apparent benefits. See Winner Int’l Royalty Corp. v. Wang, 202 F.3d 1340, 1349 n.8 (Fed. Cir. 2000) (“The fact that the motivating benefit comes at the expense of another benefit . . . should not nullify its use as a basis to modify the disclosure of one reference with the teachings of another.”); Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165 (Fed. Cir. 2006) (“a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine “). In addition, even if Patent Owner were correct that Wagner’s existing design works as well as Petitioner’s proposed combination, given all of the tradeoffs involved, that would not fatally undermine Petitioner’s showing. In re Fulton, 391 F.3d 1195, 1200 (Fed. Cir. 2004) (obviousness does not require that the proposed combination “is the preferred, or most desirable, combination”). On this record, Petitioner’s (and Scorch’s) stated advantages that are achieved when adding Scorch’s slot to Wagner’s housing adequately support Petitioner’s motivation to combine rationale.” slip op. at 26

  Patent outcomesUS 11,674,774 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Nautilus
  Patents in suitUS 11,674,774
• Fluidmaster, Inc. v. Danco, Inc.Some claims unpatentable
  PTAB · Dec 15, 2025 · IPR2024-00633 · APJ Meredith C Petravick · IPR · Final written decision

  Claims 1, 7–15, 19, and 20 are unpatentable over Brown and Ho; claims 2–6 and 16–18 were not shown unpatentable on the asserted grounds.

  RulingsFinal written decision

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

    “Brown’s adapter tube 23 (i.e., the extended portion) does not extend radially from a longitudinal axis of valve assembly 13 (i.e., the toilet fill valve). Ex. 1021, Fig. 1. Mr. Jobin testifies that a POSITA would not be motivated to move adapter tube 23 from a vertical position to a radial position because “a radial extended portion is directly counter to the stated goals of Brown (e.g., reducing noise caused by turbulence), at least insofar system.” Ex. 2013 ¶ 251; see Ex. 1021, 1:9–62. Patent Owner’s argument is persuasive. Petitioner’s analysis and Dr. Cameron’s testimony is conclusory and does not sufficiently explain why a POSITA would be motivated to make the proposed modification to Brown. For example, Petitioner does not sufficiently explain how such a modification would result in a more compact toilet fill valve system that could be adapted to fit in more toilet tank designs. Further, neither Petitioner nor Dr. Cameron sufficiently address Mr. Jobin’s testimony regarding Brown’s desire for a quieter toilet. See Pet. Reply 23; Ex. 1036 ¶ 84. Petitioner fails to meet its burden to show by a preponderance of the evidence that claim 2 is unpatentable over Brown and Ho.” slip op. at 35

  • Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner

    “description is an objective inquiry into the four corners of the specification from the perspective of a POSA. Using this test, the invention must be described in a manner sufficient to demonstrate that the inventor actually invented the claimed invention. Ariad Pharm., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010). “One shows that one is ‘in possession’ of the invention by describing the invention, with all its claimed limitations, not that which makes it obvious.” Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 1997). Written description is a question of fact judged as of the relevant filing date. Falko–Gunter Falkner v. Inglis, 448 F.3d 1357, 1363 (Fed. Cir. 2006). An ipsis verbis disclosure, however, is not necessary to satisfy the written description requirement. Vas–Cath Inc. v. Mahurkar, 935 F.2d 1555, 1563 (Fed. Cir. 1991). The disclosure need only reasonably convey to a POSA that the inventor had possession of the subject matter in question, even if every nuance of the claims is not explicitly described in the specification. Id.; see Ariad, 598 F.3d at 1351. Patent Owner argues that the ’993 patent claims were “fully supported as of the filing date of at least the ’606 Application . . . March 11, 2004” because the ’606 Application discloses regulating water flow and a POSITA would know that appropriate devices for regulating water flow includes nonadjustable waterflow restrictors. PO Resp. 68; PO Sur-reply 28–30. Patent Owner’s argument is persuasive. The ’606 Application discloses: [W]hen the toilet fill valve 100 is open and water flows from the water inlet 103 to the water outlets 106 and into a toilet tank, an amount of water is also supplied to the bowl fill valve inlet 113 that flows through the bowl fill valve 109 and out the bowl fill valve outlet 116. By virtue of the manual setting of handle 119 valve 109 is regulated. In this manner, the flow of water is regulated so that enough water flows out of the bowl fill valve 109 to fill a toilet bowl without wasting any water down a drain. Ex. 1012, 47, ¶ 8 (emphasis added); see also Ex. 1001, 2:28–39. As can be seen from the passage above, the ’606 Application discloses regulating an amount of water supplied to a toilet bowl using a valve (i.e., a water flow regulator). Ex. 2013 ¶ 288.” slip op. at 48

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Patents / published applications (effective date, provisional support)Reference not prior artNot shown unpatentable

    “1. Analysis of Claims 1–18 Schuster is available as prior art if the ’993 patent is only entitled to its January 27, 2014, filing date and not entitled to claim priority to earlier filing dates of the parent applications. On its face, the ’993 patent claims priority to a number of earlier parent applications, including Application No. 12/786,904 (the ’904 Application) filed May 25, 2010, and the Application code 63. Petitioner contends that the ’993 patent is not entitled to claim priority to the filing date of the earlier parent applications, and, thus, Schuster, a parent application of the ’993 patent, is available as prior art.15 Pet. 91–92. Petitioner alleges that the earlier parent applications, specifically Application No. 12/786,904 (the ’904 Application), do not provide written description support for the ’993 patent’s claim term “water flow regulator.” According to Petitioner, “water flow regulator” encompasses both adjustable devices for restricting the flow of water (i.e., valves) and fixed devices for restricting the flow of water (i.e., restrictors). Pet. 15. Petitioner contends that the ’904 Application does not provide support for water flow restrictors and, thus, does not provide support for the broader claim term water flow regulators. Id. at 14–15, 91–92. Petitioner argues that only adjustable water flow devices (i.e., valves) are supported by the ’904 Application. Id. Petitioner, thus, asserts that earliest effective filing date of the ’993 patent’s claims is the filing date of its application, January 27, 2014. Id. at 92. To be entitled to claim the benefit of an earlier filing date under 35 U.S.C. § 120 each application in the priority chain must comply with the written description requirement of 35 U.S.C. § 112(a). See Hollmer v. 14 The parties do not dispute that the ’993 patent and the earlier parent applications, including the ’904 Application and the ’606 Application, have the same pertinent portions of their specifications. See PO Resp. 71, n.16; Ex. 1004 ¶ 324. 15 Schuster issued on January 31, 2012, from Application No. 12/786,904, filed on May 25, 2010. Ex. 1029, code (21), (22), (45). Schuster, thus, issued more than one year prior to January 27, 2014.” slip op. at 46

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

    “2. Analysis of Claims 19 and 20 Claim 19 depends from claim 14 and additionally recites, “wherein the waterflow regulator comprises an adjustable water flow regulator that is configured to adjust the flow rate of the second portion of the water based at least in part on a setting of the adjustable water flow regulator.” Ex. 1001, 12:16–20. Claim 20 depends from claim 14 and recites the same additional limitation. Id. at 12:21–24. Claims 19 and 20, thus, require the water flow regulator to be an adjustable water flow regulator. Petitioner indicates that the earlier parent applications provide written description support for an adjustable water flow regulator. Pet. 91 (“[T]he ’904 application specification makes it clear that the adjustability of the bowl fill valve is a desirable and essential feature of the invention”); PO Surreply 28. Accordingly, Petitioner fails to meet its burden to show, by a preponderance of the evidence, that claims 19 and 20 are unpatentable over Schuster.” slip op. at 50

  Patent outcomesUS 9,139,993 mixed
  § 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 9,139,993
• Fluidmaster, Inc. v. Danco, Inc.Instituted
  PTAB · Sep 9, 2024 · IPR2024-00633 · APJ Meredith C Petravick · IPR · Institution

  Instituted IPR of claims 1–20 on all asserted grounds; the Board found a reasonable likelihood that claim 1 is unpatentable over Brown and Ho.

  RulingsInstitution decision

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

    “Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the petition “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition, the Preliminary Response, the Reply, the Sur-reply, and the evidence of record, we determine the information presented shows a reasonable likelihood that Petitioner would prevail in establishing the unpatentability of at least one of the challenged claims of the ’993 patent. Accordingly, we institute an inter partes review of claims 1–20 of the ’993 patent on the grounds asserted in the Petition.” slip op. at 2

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

    “presented to the Office.” Prelim. Resp. 31– 36. In determining whether to deny institution under § 325(d) we use a two-part framework, as follows: (1) whether the same or substantially the same art previously was presented to the Office or whether the same or substantially the same arguments previously were presented to the Office; and (2) if either condition of [the] first part of the framework is satisfied, whether the petitioner has demonstrated that the Office erred in a manner material to the patentability of challenged claims. Advanced Bionics, LLC v. MED-EL Elektromedizinische Geräte GmbH, IPR2019-01469, Paper 6 at 8 (PTAB Feb. 13, 2020) (precedential). The Becton, Dickinson factors provide useful insight into how to apply the framework under 35 U.S.C. § 325(d). Id. at 9 (referencing Becton, Dickinson & Co. v. B. Braun Melsungen AG, IPR2017-01586, Paper 8 at 17–18 (PTAB Dec. 15, 2017) (precedential as to § III.C.5, first paragraph)).” slip op. at 8

  • BurdenDecided for petitioner

    “At this stage of the proceeding, Patent Owner provides no sufficient evidence to rebut Dr. Cameron’s testimony as to what a POSITA would have known from Guoxin and Ho’s drawings and as to the alleged motivations to combine Guoxin and Ho. Based on Petitioner’s evidence and analysis, and taking into account the Preliminary Response, at this stage of the proceeding, we determine that the information in the Petition shows a reasonable likelihood that claim 1 is unpatentable over Guoxin and Ho.” slip op. at 24

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “A [person of ordinary skill in the art (“POSITA”)] in the field to which the ’993 Patent is directed would have had at least a Bachelor of Science degree in mechanical engineering or a related field or, as a substitute, at least two years of work or research experience in the design or development of toilet products, parts, and accessories. Prelim. Resp. 16. Petitioner’s declarant Dr. Cameron asserts that: A [POSITA] with respect to the subject matter of the ’993 patent at the time of the priority date, January 27, 2014, would have had an undergraduate degree in mechanical engineering, or other technical training in product design or equivalent work experience. This person would also possess at least one year of experience in developing and/or evaluating mechanical aspects of fluid systems. Ex. 1004 ¶ 29. For purposes of this Decision, we adopt Patent Owner’s proposed definition of a POSITA, as it is consistent with the ’993 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). However, we see no material difference between the level of skill proposed by Patent Owner and that proposed by Dr. Cameron.” slip op. at 12

  Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 9,139,993
• Fluidmaster, Inc. v. Danco, Inc.Instituted
  PTAB · Sep 9, 2024 · IPR2024-00634 · APJ Meredith C Petravick · IPR · Institution

  The Board instituted IPR of claims 1–24 on all asserted grounds, finding a reasonable likelihood that claim 1 is unpatentable over Brown and Ho.

  RulingsInstitution decision

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

    “unless the information presented in the petition “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition, the Preliminary Response, the Reply, the Sur-reply, and the evidence of record, we determine the information presented shows a reasonable likelihood that Petitioner would prevail in establishing the unpatentability of at least one of the challenged claims of the ’105 patent. Accordingly, we institute an inter partes review of claims 1–24 of the ’105 patent on the grounds asserted in the Petition.” slip op. at 2

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

    “Previously presented art includes art made of record by the Examiner, and art provided to the Office by an applicant, such as on an Information Disclosure Statement (“IDS”), in the prosecution history of the challenged patent. Id. at 7–8. Here, it is not disputed that Brown and Bjerke were listed on an IDS and, thus, were previously presented to the Office. Pet. 12, n.4; Prelim. Resp. 33. It is also not disputed that Guoxin, Ho, Calmettes, Hall, Kimber, and Schuster were not previously presented to the Office. See Prelim. Resp. 33. Patent Owner argues that Guoxin, Brown, and Ho are cumulative of a reference, DeMarco9, that was previously presented to the Office and relied upon to reject the claims. Prelim. Resp. 33 Patent Owner argues that Guoxin, Brown, and Ho are cumulative to DeMarco because all of the “references are completely silent as to whether the purported ‘extended portion’ is integrally molded with the purported body of the toiled fill valve.” Id. at 33–36. Patent Owner’s arguments are unpersuasive. As can be seen from our discussion of Ho in our analysis below, on this record, we are persuaded that Petitioner has sufficiently shown for purposes of institution how Ho allegedly teaches the claimed integrally molded extended portion. We, thus, are not persuaded that at least Ho is cumulative of DeMarco. Grounds 1–4 rely upon combinations of prior art that include Ho. Ground 5 is based upon Schuster, which was not previously presented to the 9 U.S. Patent No. 5,708,991 (Ex. 1024). Office. Accordingly, we determine that discretionary denial is not warranted. Because we determine that part one of the framework is not satisfied, we need not turn to part two to determine whether Petitioner demonstrates that the Office erred in a manner material to the patentability of the challenged claims. For the reasons discussed above, we decline to exercise our discretion under § 325(d) to deny the Petition.” slip op. at 9

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

    “On this record, we are persuaded by Patent Owner that the claim phrase “integrally molded with” should be construed to mean “molded together as a single structure” and to exclude items created as separate pieces and attached together later. Patent Owner’s construction is consistent with the plain language of the claims, which requires the extended portion be “integrally molded with” the body and not just the extended portion be integral with the body. Further, we determine that Patent Owner’s construction is consistent with the ’105 patent, which discloses that “the bowl fill valve 109 may be molded as a portion of the toilet fill valve 100 or it may be snapped or clamped into place, or it may be attached to the toilet fill valve 100 in some other manner, etc.” Id. at 2:23–26 (emphasis added). At this stage of the proceeding, we construe “integrally molded with” to mean molded together as a single structure.” slip op. at 14

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

    “Patent Owner next disputes that a POSITA would have combined Guoxin and Ho and argues that Petitioner’s alleged rationale to combine Guoxin and Ho as conclusory and lacks sufficient support. Prelim. Resp. 40–42. We determine that Petitioner has sufficiently articulated a motivation to combine Guoxin and Ho to support institution. Petitioner asserted motivation to combine — improved strength and integrity of connection — is supported by the testimony of Dr. Cameron. Dr. Cameron testifies: “Integrally molding the extended portion of Guoxin with the inlet device as taught by Ho would be advantageous in improving the strength and integrity of the connection, and to make it easier to manufacture and assemble.” Ex. 1004 ¶ 125. Based on the record at this stage of the proceeding, we determine that Petitioner has sufficiently shown that the combination of Guoxin and Ho teaches element 1B.” slip op. at 20

  Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 9,103,105
• Tetra Tech Canada Inc. v. Georgetown Rail Equipment CompanyAll claims unpatentable
  PTAB · Aug 25, 2020 · IPR2019-00620 · APJ Kristina M Kalan · IPR · Final written decision

  Claims 1–3, 7–13, and 16–20 are unpatentable as obvious; the contingent motion to amend with substitute claims 30–44 is denied.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art “would have a bachelor’s degree in electrical engineering, computer engineering, mechanical engineering, computer science, physics, or a related field, and at least four years of experience (or the academic equivalent) in the field of computer or machine vision.” Pet. 21 (citing Ex. 1004 ¶ 42). Patent Owner states that, for purposes of its Response, “Patent Owner does not contest the level of ordinary skill in the art asserted by Petitioner.” PO Resp. 3. Neither party argues that the outcome of this case would differ based on our adoption of any particular definition of one of ordinary skill in the art. In light of the record now before us, we find that a person of ordinary skill in the art would be an individual with at least a bachelor’s degree in electrical engineering, computer engineering, mechanical engineering, computer science, physics, or a related field, and at least four years of experience (or the academic equivalent) in the field of computer or machine vision. Ex. 1004 ¶ 42. The level of ordinary skill in the art is also reflected by the references themselves. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (“[T]he absence of specific findings on the level of skill in the art does not give rise to reversible error ‘where the prior art itself reflects an appropriate level and a need for testimony is not shown.’”); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (finding that the Board of Patent Appeals and Interferences did not err in concluding that the level of ordinary skill in the art was best determined by the references of record).” slip op. at 8

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

    “On the full record now before us, we determine it is not necessary to construe any claim term expressly to resolve the parties’ dispute. Vivid Techs., Inc., 200 F.3d at 803 (“Only those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”); Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (applying Vivid Techs. in the context of an inter partes review). D. Prior Art” slip op. at 10

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

    “Additionally, by providing the declaration of Ms. Watters, Petitioner has taken further steps to provide testimony that Uzarski was catalogued, shelved, and indexed before the critical date, and made available such that persons of ordinary skill in the art, exercising reasonable diligence, could have located it. Id. at 1–2. Ms. Watters, a librarian with the University of Wisconsin-Madison since 1998, provides details regarding her professional background leading to her current position as Director of Wisconsin TechSearch within the University of Wisconsin-Madison. Ex. 1038, 1. She testifies that, based on her knowledge, Uzarski “was received by Wendt Library, University of Wisconsin-Madison Libraries on February 11, 1994.” Id. at 2. She further testifies that, based on the information in Uzarski, “it is clear that the microfiche was received by the library on or before February 11, 1994, catalogued and available to library patrons within a few days or at most 2 to 3 weeks after February 11, 1994.” Id. The declaration concludes with an affidavit that Ms. Watters is aware that false statements are punishable by fine or imprisonment or both. Id.; see 37 C.F.R. § 1.68; 28 U.S.C. § 1746. We have reviewed the testimony of Ms. Watters supporting Uzarski’s public accessibility as of the critical date, and find that Ms. Watters provides credible testimony regarding the receipt of Uzarski by the University of Wisconsin-Madison Library and the cataloging and availability of Uzarski. On this complete record, we are persuaded that the indicia on Uzarski and the support provided by the Watters declaration demonstrate sufficiently that Uzarski was publicly accessible as of the critical date.” slip op. at 17

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

    “Petitioner and its declarant provide ample reasons that one of ordinary skill in the art would have been motivated to employ Villar’s processor to use Uzarski’s method, and ample reasons that one of ordinary skill in the art also would have known to look to Haas to determine what was “well-known to one of ordinary skill in the art at the relevant time to determine the condition of railroad ties,” and to identify and use the particular regulations referenced in Uzarski. Pet. 30 (citing Ex. 1004 ¶ 58), 37–38 (citing Ex. 1004 ¶ 70); see also Reply 6–12; Ex. 1004 ¶¶ 70–71; Ex. 1038, 18–20. On this complete record, and for the reasons provided by Petitioner and discussed above, we determine that Petitioner provides adequate reasoning to combine the three references in the manner proposed in the Petition with a reasonable expectation of success.” slip op. at 33

  Patent outcomesUS 9,441,956 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 9,441,956
• Boston Scientific Corporation v. Uab Research FoundationInstitution denied
  PTAB · Sep 24, 2015 · IPR2015-00918 · APJ James A Worth · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood of proving claims 1–20 anticipated by KenKnight ’967, which was not prior art.

  RulingsInstitution decision

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

    “To institute an inter partes review, we must determine that the argument and evidence presented in the Petition shows “a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). For the reasons set forth below, we do not institute an inter partes review for the challenged claims.” slip op. at 2

  • Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner

    “We agree with Patent Owner, and we determine that the ’261 Application sets forth a device “configured for” “delivering antitachycardia pacing to said heart,” as recited by independent claims 1, 7, and 14. Petitioner has not persuaded us that the ’261 Application fails to disclose the claimed structure. Indeed, the ’261 Application discloses the same configuration of electrodes that deliver electrical impulses of the same energy and characteristics as the ’563 patent. Ex. 1002, 9:3–9, 12:30–32, Fig. 1. As noted by Patent Owner, the ’261 Application makes plain that it is directed to the treatment of “all forms of cardiac tachyarrythmias,” including “ventricular tachycardia.” See id. at 7:4–9.2” slip op. at 8

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Patents / published applications (effective date, provisional support)Reference not prior artNot shown unpatentable

    “We agree with Patent Owner, and we determine that the ’261 Application sets forth a device “configured for” “delivering antitachycardia pacing to said heart,” as recited by independent claims 1, 7, and 14. Petitioner has not persuaded us that the ’261 Application fails to disclose the claimed structure. Indeed, the ’261 Application discloses the same configuration of electrodes that deliver electrical impulses of the same energy and characteristics as the ’563 patent. Ex. 1002, 9:3–9, 12:30–32, Fig. 1. As noted by Patent Owner, the ’261 Application makes plain that it is directed to the treatment of “all forms of cardiac tachyarrythmias,” including “ventricular tachycardia.” See id. at 7:4–9.2” slip op. at 8

  § 102 anticipation§ 112 disclosure
  Patents in suitUS 6,266,563
• Headbox, LLC v. Infinite Imagineering, Inc.All claims unpatentable
  PTAB · May 22, 2015 · IPR2014-00365 · APJ Benjamin D M Wood · IPR · Final written decision

  Claims 1–3, 5, 8–14, 16–19, 22, and 24–26 are unpatentable under § 103; claim 23 is indefinite under § 112, and its obviousness was not reached.

  RulingsFinal written decision

  • Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) appliesDecided for petitioner

    “headphone set in accordance with claim 1, where each of said speaker headphones includes a pair of stereo headphone driver units in order to increase the volume/audio level when said speaker headphones are not positioned on the user’s head.” Ex. 1001, 12:5–9 (emphasis added). Claim 23 additionally recites “wherein each of said headphone driver units includes a volume controlling means for regulating and presetting the volume level for said exterior speakers and said interior speakers.” Id. at 12:23–26 (emphasis added). Petitioner contends, and we agree, that “volume controlling means” is a means-plus-function claim term under 35 U.S.C. § 112, paragraph 6, and that the claimed function is regulating and presetting the volume level for the exterior speakers and the interior speakers. Pet. 11. Petitioner also contends that the Specification does not identify any structure that corresponds to this function. Id. “If the specification does not contain an adequate disclosure of the structure that corresponds to the claimed function, the patentee will have failed to particularly point out and distinctly claim the invention as required by the second paragraph of section 112, which renders the claim invalid for indefiniteness.” Blackboard, Inc. v. Desire2Learn, Inc., 574 F.3d 1371, 1382 (Fed. Cir. 2009) (internal quotation marks omitted). The Specification teaches that one embodiment of headphone set 10 includes driver unit 70 for interior speakers 42, 44, and driver unit 72 for exterior speakers 38, 40, with driver units 70, 72 including “volume controlling means” 71 and 73, respectively. Ex. 1001, 6:40–45, Fig. 2B.7 According to the Specification, the volume controlling means are for presetting a maximum volume to each of the interior and exterior speakers, presumably to prevent hearing damage caused by excessively loud audio. Id. at 6:57–7:2. But the Specification does not describe or depict the structure that the volume controlling means uses to preset the maximum volume. Instead, it merely describes their function and depicts each of them as a box in a block diagram. Id. This is not sufficient because it does not “cabin the scope of the functional language in the means[-plus-function] element.” ePlus, Inc. v. Lawson Software, Inc., 700 F.3d 509, 518–19 (Fed. Cir. 2012) (holding that a “black box” in a flow chart only represents a function without specifying structure). Accordingly, we agree with Petitioner that the ’966 patent Specification does not describe structure corresponding to the function of presetting a maximum volume to the interior and exterior speakers, rendering claim 23 indefinite.” slip op. at 6

  • Disclosure Requirements (§112) › Definiteness (Nautilus)IndefiniteOther

    “which renders the claim invalid for indefiniteness.” Blackboard, Inc. v. Desire2Learn, Inc., 574 F.3d 1371, 1382 (Fed. Cir. 2009) (internal quotation marks omitted). The Specification teaches that one embodiment of headphone set 10 includes driver unit 70 for interior speakers 42, 44, and driver unit 72 for exterior speakers 38, 40, with driver units 70, 72 including “volume controlling means” 71 and 73, respectively. Ex. 1001, 6:40–45, Fig. 2B.7 According to the Specification, the volume controlling means are for presetting a maximum volume to each of the interior and exterior speakers, presumably to prevent hearing damage caused by excessively loud audio. Id. at 6:57–7:2. But the Specification does not describe or depict the structure that the volume controlling means uses to preset the maximum volume. Instead, it merely describes their function and depicts each of them as a box in a block diagram. Id. This is not sufficient because it does not “cabin the scope of the functional language in the means[-plus-function] element.” ePlus, Inc. v. Lawson Software, Inc., 700 F.3d 509, 518–19 (Fed. Cir. 2012) (holding that a “black box” in a flow chart only represents a function without specifying structure). Accordingly, we agree with Petitioner that the ’966 patent Specification does not describe structure corresponding to the function of presetting a maximum volume to the interior and exterior speakers, rendering claim 23 indefinite.” slip op. at 7

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

    “speaker headphone (ear covers 20) on opposing ends of a headband—each speaker headphone comprising an exterior speaker (audio speaker 25) and an interior speaker (earphone speaker 27)—and a signal wire connecting an audio device output to the speaker headphones. Ex. 1003, 2:8–20, 23–44, 53–59, 3:24–32, Figs. 1, 2. Kuo also discloses a switch that allows a user to listen to either the interior speakers or exterior speakers, although it does not describe the claimed three-way switch that also allows a user to 8 See 37 C.F.R. § 42.23(a) (“Any material fact not specifically denied may be considered admitted.”). simultaneously listen to both interior and exterior speakers. Id. at 2:32–44, 3:27–29. We find, however, that Awaba discloses a three-way switch (mode switch 28) that permits a user to select between the three claimed listening modes. Ex. 1004, 2:5–12, 27–28, 4:30–36, Fig. 1. Further, a skilled artisan9 would have considered Awaba’s three-way switch to be an obvious substitute for Kuo’s two-way switch because both are used for essentially the same purpose: to select between a headphone’s internal and external speakers on similar speaker-equipped headphones. The skilled artisan would have been motivated to make the substitution because Awaba’s threeway switch adds the additional functionality of being able to play both sets of speakers at the same time.” slip op. at 9

  • Obviousness (§103) › KSR rationalesUnpatentable

    “claim 1. We find that the combination of Kuo and Awaba teaches the additional limitations recited in these claims. Specifically, Kuo discloses the input jack, amplifier member, power source, headphone shape and audio-device connection of, respectively, claims 8–10, 12, and 16. Ex. 1003, 2:21– 31, 37–39, 47–59, 3:4–32, Figs. 1, 2, 5–7. Kuo’s mounting of ear covers 20 at the joint ends 11 of headband 10 corresponds to the requirements of claim 5. Id. at 2:12–18, Fig. 2. Further, Awaba discloses the three-way switch of claims 2 and 11 and the electrical connections of claim 11 (Ex. 1004, 2:24– 28, 4:25–36, Fig. 1); Awaba’s transmission of mono signals corresponds to 9 We find that the level of ordinary skill in the art is reflected by the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (holding that the prior art itself can reflect the appropriate level of skill in the art). the monaural system of claim 24 (id. at 4:26–29); and Awaba’s socket 24 corresponds to claim 26’s pocket (id. at 4:10–17). Adding these features to Kuo’s headphones would have constituted use of known techniques to improve similar devices (speaker-equipped headphones) in the same way. See KSR Int’l Co. v. Teleflex, Inc., 550 U.S. 398, 417 (2007) (holding that “if a technique has been used to improve one device, and a person of ordinary skill in the art would recognize that it would improve similar devices in the same way, using the technique is obvious unless its actual application is beyond his or her skill”).” slip op. at 10

  Patent outcomesUS 8,085,966 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites KSR
  Patents in suitUS 8,085,966
• Munchkin, Inc. / Toys “r” US, Inc. v. Luv N’ Care, Ltd.All claims unpatentable
  PTAB · Apr 21, 2014 · IPR2013-00072 · APJ Michael J Fitzpatrick · IPR · Final written decision

  The sole claim is unpatentable as obvious over Hakim ’225 and Hakim ’604; the motion to amend is denied because it would enlarge claim scope.

  RulingsFinal written decision

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

    “The test for sufficiency of the written description, which is the same for either a design or a utility patent, has been expressed as “whether the disclosure of the application relied upon reasonably conveys to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date.” Id. (quoting Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc)). In the context of design patents, the drawings provide the written description of the invention. Thus, when an issue of priority arises under § 120 in the context of design patent prosecution, one looks to the drawings of the earlier application for disclosure of the subject matter claimed in the later application. Owens, 710 F.3d at 1366 (citations omitted).” slip op. at 6

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

    “likelihood that the claim of the ’465 patent would have been obvious over each of Hakim ’225 and Hakim ’604. Dec. on Pet. 23. In response, Patent Owner does not argue that the claim is patentably distinct from those references. PO Resp. 6-7; Tr. 31:10-17. Rather, Patent Owner argues that the references are not prior art. PO Resp. 6-7; Tr. 31:10-17.” slip op. at 5

  • ScopeMotion to amend, deniedDenied

    “Owner relies on this distinction, between infringement of design patents and that of utility patents, to argue that the proposed amended claim is not broader than the issued claim because, to “an ordinary observer,” the designs are “substantially the same.” PO Reply 4 (emphasis added). However, Patent Owner does not direct us to, and we are not aware of, any authority that has applied the “ordinary observer” test—first enunciated as a test for infringement in Gorham Manufacturing Co. v. White, 81 U.S. 511 (1871) and adopted as the sole test for design patent infringement in Egyptian Goddess, 543 F.3d at 678—to compare the scope of two claims. The scope of the issued claim and the proposed amended claim are defined by the respective drawings. See id. at 679 (design patents typically are claimed as shown in the drawings). Those drawings differ with respect to the spout tip and the vent. Specifically, the proposed amended claim is broader than the issued claim because it is broader with respect to racetrackshaped spout tips and raised rim vents, even though it may be narrower with respect to egg-shaped spout tips and vents without raised rims. See In re Rogoff, 261 F.2d 601, 603 (CCPA 1958) (“[A] claim is broadened if it is broader in any respect than the original claim, even though it may be narrowed in other respects.”). In other words, a drinking cup, having the racetrack-shaped spout tip and raised rim vent of the proposed amended claim, could infringe the proposed amended claim based on its overall design, yet not infringe the issued claim. See Thermalloy, Inc. v. Aavid Eng’g, Inc., 121 F.3d 691, 692 (Fed. Cir. 1997) (“A new claim enlarges if it includes within its scope any subject matter that would not have infringed the original patent.”). Therefore, the proposed amended claim would enlarge the claimed subject matter in violation of 35 U.S.C. § 316(d)(3) and 37 C.F.R. § 42.121(a)(2)(ii).” slip op. at 14

  Patent outcomesUS D617,465 unpatentable
  § 103 obviousness§ 112 disclosure

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.