- Fluidmaster, Inc. v. Danco, Inc.Some claims unpatentablePTAB · 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 mixedClaim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · GrahamPatents in suitUS 9,103,105 - Fluidmaster, Inc. v. Danco, Inc.Some claims unpatentablePTAB · 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 · GrahamPatents in suitUS 9,139,993 - PTAB · Apr 21, 2025 · IPR2024-01489 · APJ Barbara A Parvis · IPR · Institution
The Board instituted IPR on claims 1–30 on all asserted grounds, finding a reasonable likelihood that Cohen anticipates the challenged claims.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“To show anticipation under 35 U.S.C. § 102, each and every claim element, arranged as in the claim, must be found in a single prior art reference. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359 (Fed. Cir. 2008); Verdegaal Bros., Inc. v. Union Oil Co. of Cal., 814 F.2d 628, 631 (Fed. Cir. 1987). Identity of terminology is not required for a claim element to be met directly by the prior art. In re Gleave, 560 F.3d 1331, 1334 (Fed. Cir. 2009); In re Bond, 910 F.2d 831, 832 (Fed. Cir. 1990) (citations omitted) (“[T]his is not an ‘ipsissimis verbis’ test.”). For anticipation, we take into account not only the specific teachings of the reference, but also the inferences which one skilled in the art would reasonably be expected to draw therefrom. In re Preda, 401 F.2d 825, 826 (CCPA 1968). B. Level of Ordinary Skill in the Art” slip op. at 13
- Parallel petitionsDecided for petitioner
“Wrinkl, Inc. v. Slack Technologies, LLC, No. 1:24-cv-00620 (D. Del. May 23, 2024). Pet. 1; Paper 4, 1. Patent Owner also states that a “second IPR was filed against the same patent in proceeding IPR2024-01490.” Paper 4, 1. Patent Owner does not argue that we should exercise discretion under 35 U.S.C. § 314(a) because Petitioner uses more than one petition to challenge the ’731 patent. challenges the alleged priority date of the ’731 patent (IPR2024-01489) (‘First Petition’) and the second petition assumes that the Patent Owner’s claimed priority date is valid, and addresses prior art references predating that priority date (IPR2024-01490) (‘Second Petition’).” Ex. 1019, 1. In accordance with the Consolidated Trial Practice Guide1 (“CTPG”), issued in November 2019, “there may be circumstances in which more than one petition may be necessary” including “when there is a dispute about priority date requiring arguments under multiple prior art references.” CTPG 59. Such is the case here. Patent Owner does not file any Preliminary Response or other paper disputing Petitioner’s use of two petitions to challenge the claims of the ’731 patent. Based on the record before us, we consider the merits of both petitions because Petitioner’s stated reasons for filing two petitions are consistent with the CTPG. See generally Ex. 1019 (citing CTPG, 59 (“the Board recognizes that there may be circumstances in which more than one petition may be necessary, including, for example, . . . when there is a dispute about priority date requiring arguments under multiple prior art references)). C. The ’731 Patent” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateOther
“reasonable likelihood that it would prevail on a ground of unpatentability. 35 U.S.C. § 314(a); Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3)) (“In an [inter partes review], the petitioner has the burden from the onset to show with particularity why the patent it challenges is unpatentable.”). Petitioner first must raise the issue of entitlement to a claimed priority date by “identifying, specifically, the features, claims, and ancestral application or applications allegedly lacking § 112 support for the claims based on the identified features.” Focal Therapeutics, Inc. v. Senorx, Inc., IPR2014-00116, Paper 8 at 9–10 (PTAB Apr. 22, 2014); Mission Integrated Techs., LLC v. Joshua Clemente, IPR2023-01285, Paper 16 at 18 (PTAB Feb. 23, 2024). Then, Patent Owner must make a sufficient showing of entitlement to earlier filing date(s), in a manner that is commensurate in scope with the specific points and contentions raised by the petitioner. See id.” slip op. at 11
- Skill levelSkill level petitioner adoptedOther
“two years of experience in the graphical user interface field” or, alternatively “a master’s degree in computer science (or similar discipline) and at least two years of similar experience.” Pet. 16 (citing Ex. 1003 ¶ 40). We find that “at least” in Petitioner’s formulation of the level of skill in the art is vague and open-ended. Otherwise, we preliminarily adopt Petitioner’s formulation of the level of skill in the art, which appears consistent with the specification and prior art presented. C. Claim Construction” slip op. at 14
Claim construction§ 102 anticipation§ 112 disclosureDiscretionary denialcites PhillipsPatents in suitUS 11,973,731 - Fluidmaster, Inc. v. Danco, Inc.InstitutedPTAB · 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 · GrahamPatents in suitUS 9,139,993 - Fluidmaster, Inc. v. Danco, Inc.InstitutedPTAB · 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 · GrahamPatents in suitUS 9,103,105 - Sophos Ltd. / Sophos Inc. v. Open Text Inc.Institution deniedPTAB · Nov 29, 2023 · PGR2023-00031 · APJ Barbara A Parvis · PGR · Institution
The Board denied institution because Petitioner did not show that any challenged claim was more likely than not unpatentable over the asserted obviousness or indefiniteness grounds.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“review under 35 U.S.C. § 324 and 37 C.F.R. § 42.4. A post-grant review may not be instituted “unless . . . the information presented in the petition . . . , if such information is not rebutted, 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 (2018). Having considered the arguments and evidence presented by Petitioner and Patent Owner, we determine that Petitioner has not demonstrated that it is more likely than not that at least one of the claims challenged in the patent is unpatentable. Accordingly, we do not institute a post-grant review of the challenged claims of the ’869 patent.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Pet. 10 (citing Ex. 1004 ¶ 16). Patent Owner does not dispute Petitioner’s proposal. Prelim. Resp. 33. Considering the subject matter of the ’869 patent, the background technical field, and the asserted prior art, we agree with Petitioner’s proposed qualifications for an ordinary level of skill, except we decline to adopt “at least” as that language is vague and open-ended. Otherwise, Petitioner’s proposed definition is consistent with the level of skill reflected in the Specification of the ’869 patent and the asserted prior art references. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). Accordingly, for purposes of this Decision, and based on the current record, except as noted above, we adopt Petitioner’s assessment of the level of skill for one of ordinary skill in the art.” slip op. at 13
- Obviousness (§103) › Motivation to combine / reasonable expectation of successNot reached
“We agree with Patent Owner that the claims are directed to the classification stage, as they require extracting “a plurality of static data points” from an executable file and “generating a feature vector from [that] plurality of static data points using a classifier” (emphasis added). The claims also recite that the classifier has been “trained to classify” (emphasis added). Further, the claims recite that “features of the feature vector” are selectively turned on or off, indicating that the feature vector has been generated. We also agree with Patent Owner that Petitioner has not shown that Ideses teaches or suggests a classification method in which one or more features of a feature vector generated from a plurality of static data points are selectively turned on or off based on the value of the static data point. As explained in the summary of Ideses above, Ideses describes “methods and systems for generating classifiers” (Ex. 1005 ¶ 2) in which “extracted features [may be] identified for pruning to generate the group of classifying features,” and “the selection [may be] based on identifying a classification effectiveness rank for each of the features of the training software applications” or “based on identifying resource requirements for each of the features of the training software applications.” See id. ¶¶ 98, 99. “[T]he group of classifying features [may be] selected based on the significance of the extracted features,” such that “[s]ignificant features, such as those that have a large effect on the classification outcomes, may be retained” and “[i]nsignificant features, such as those that have a small, negligible or no effect on classification outcome may be pruned.” Id. ¶¶ 101, 106. Petitioner argues that “Ideses explains that in the method depicted in Figure 1, ‘[t]he full feature list is optionally selectively pruned,’ i.e., ‘selectively turned off’ as required by [1.e],” and “[f]urther, ‘each feature of the group is selected from-the-ground-up; added to the group as opposed to removed from or retained within a larger group,’ i.e., ‘selectively turned on’ as required by [1.e].” Pet. 33 (citing Ex. 1005 ¶ 71). Petitioner also argues element 1.e is taught by Ideses’s “approaches to pruning insignificant features,” which Petitioner argues are “to selectively includ[e]/exclud[e] features based on whether a feature coefficient ‘is within a predetermined range’ as required” by element 1.e. Id. at 34 (citing, e.g., Ex. 1005 ¶¶ 107, 109–110). But all of the selection and pruning described in Ideses concerns the” slip op. at 22
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“We agree with Patent Owner that the claims are directed to the classification stage, as they require extracting “a plurality of static data points” from an executable file and “generating a feature vector from [that] plurality of static data points using a classifier” (emphasis added). The claims also recite that the classifier has been “trained to classify” (emphasis added). Further, the claims recite that “features of the feature vector” are selectively turned on or off, indicating that the feature vector has been generated. We also agree with Patent Owner that Petitioner has not shown that Ideses teaches or suggests a classification method in which one or more features of a feature vector generated from a plurality of static data points are selectively turned on or off based on the value of the static data point. As explained in the summary of Ideses above, Ideses describes “methods and systems for generating classifiers” (Ex. 1005 ¶ 2) in which “extracted features [may be] identified for pruning to generate the group of classifying features,” and “the selection [may be] based on identifying a classification effectiveness rank for each of the features of the training software applications” or “based on identifying resource requirements for each of the features of the training software applications.” See id. ¶¶ 98, 99. “[T]he group of classifying features [may be] selected based on the significance of the extracted features,” such that “[s]ignificant features, such as those that have a large effect on the classification outcomes, may be retained” and “[i]nsignificant features, such as those that have a small, negligible or no effect on classification outcome may be pruned.” Id. ¶¶ 101, 106. Petitioner argues that “Ideses explains that in the method depicted in Figure 1, ‘[t]he full feature list is optionally selectively pruned,’ i.e., ‘selectively turned off’ as required by [1.e],” and “[f]urther, ‘each feature of the group is selected from-the-ground-up; added to the group as opposed to removed from or retained within a larger group,’ i.e., ‘selectively turned on’ as required by [1.e].” Pet. 33 (citing Ex. 1005 ¶ 71). Petitioner also argues element 1.e is taught by Ideses’s “approaches to pruning insignificant features,” which Petitioner argues are “to selectively includ[e]/exclud[e] features based on whether a feature coefficient ‘is within a predetermined range’ as required” by element 1.e. Id. at 34 (citing, e.g., Ex. 1005 ¶¶ 107, 109–110). But all of the selection and pruning described in Ideses concerns the” slip op. at 22
§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham · NautilusPatents in suitUS 11,409,869 - PTAB · Feb 8, 2023 · IPR2022-01335 · APJ Arthur M Peslak · IPR · Institution
The Board instituted IPR on claims 19, 20, and 37–52 based on the §103 combination of Hardin and Salmre, finding a reasonable likelihood of prevailing.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“on behalf of the Director.”). Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the Petition shows “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Considering the Petition, the arguments presented in the Preliminary Response, as well as all supporting evidence, we conclude that the information presented in the Petition establishes that there is a reasonable likelihood that Petitioner would prevail in its challenge of at least one claim of the ’447 patent as unpatentable. Pursuant to 35 U.S.C. § 314, we hereby institute an inter partes review of all Challenged Claims of the ’447 patent on the ground stated in the Petition.” slip op. at 3
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateOther
“(1) Petitioner asserts that substantially the same two claim limitations lack written description support in the ’094 application and U.S. Patent Application No. 13/856,392 (“the ’392 application”) (compare Pet. 23–29, with IPR2022-01333, Paper 4 (petition) at 23–28); (2) Petitioner asserts that because these limitations lack written description support in the ’094 and ’392 applications, the Challenged Claims are not entitled to the priority date of either of these applications and, therefore, Hardin ’665 (the pre-issuance publication of the ’094 application) is available as prior art to the Challenged Claims (compare Pet. 1, 2, 28–29, with IPR2022-01333, Paper 4 at 1, 2, 28–29);” slip op. at 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“(3) Petitioner asserts that the same combination of references— Hardin ’665 and Salmre—would have rendered the subject matter of the claims challenged in each petition obvious to one of ordinary skill in the art at the time of the invention (compare Pet. 29–64, with IPR2022-01333, Paper 4 at 29–66); (4) Petitioner asserts the same reasons with rational underpinning as to why one of ordinary skill in the art would have been motivated to combine the teachings of Hardin ’665 and Salmre as proposed with a reasonable expectation of success (compare Pet. 65–71, with IPR2022-01333, Paper 4 at 66–71);” slip op. at 15
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“that we should exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 (PTAB Mar. 20, 2020) (precedential) (compare Prelim. Resp. 61–66, with IPR2022-01333, Paper 9 at 61–66);” slip op. at 16
Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites PhillipsPatents in suitUS 10,984,447 - PTAB · Feb 8, 2023 · IPR2022-01334 · APJ Arthur M Peslak · IPR · Institution
The Board instituted review of claims 18 and 21–36 on the Hardin and Salmre obviousness ground, finding a reasonable likelihood of success.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“on behalf of the Director.”). Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the Petition shows “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Considering the Petition, the arguments presented in the Preliminary Response, as well as all supporting evidence, we conclude that the information presented in the Petition establishes that there is a reasonable likelihood that Petitioner would prevail in its challenge of at least one claim of the ’447 patent as unpatentable. Pursuant to 35 U.S.C. § 314, we hereby institute an inter partes review of all Challenged Claims of the ’447 patent on the ground stated in the Petition.” slip op. at 3
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner
“lack written description support in the ’094 application and U.S. Patent Application No. 13/856,392 (“the ’392 application”) (compare Pet. 23–28, with IPR2022-01333, Paper 4 (petition) at 23–28); (2) Petitioner asserts that because these limitations lack written description support in the ’094 and ’392 applications, the Challenged Claims are not entitled to the priority date of either of these applications and, therefore, Hardin ’665 (the pre-issuance publication of the ’094 application) is available as prior art to the Challenged Claims (compare Pet. 1, 2, 28–29, with IPR2022-01333, Paper 4 at 1, 2, 28–29);” slip op. at 14
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Hardin ’665 and Salmre—would have rendered the subject matter of the claims challenged in each petition obvious to one of ordinary skill in the art at the time of the invention (compare Pet. 29–62, with IPR2022-01333, Paper 4 at 29–66); (4) Petitioner asserts the same reasons with rational underpinning as to why one of ordinary skill in the art would have been motivated to combine the teachings of Hardin ’665 and Salmre as proposed with a reasonable expectation of success (compare Pet. 59–65, with IPR2022-01333, Paper 4 at 66–71);” slip op. at 15
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“that we should exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 (PTAB Mar. 20, 2020) (precedential) (compare Prelim. Resp. 61–66, with IPR2022-01333, Paper 9 at 61–66);” slip op. at 15
Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites PhillipsPatents in suitUS 10,984,447 - PTAB · Feb 8, 2023 · IPR2022-01329 · APJ Bart A Gerstenblith · IPR · Institution
The Board instituted IPR on claims 19–28, 33, and 34, finding a reasonable likelihood that Hardin ’665 and Salmre render them obvious.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“An inter partes review may be instituted only if “the information presented in the petition . . . and any [preliminary] response . . . 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.” 35 U.S.C. § 314(a) (2018). For the reasons below, Petitioner has established a reasonable 1 Petitioner’s Preliminary Reply is limited to the issue of discretionary denial pursuant to Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 (PTAB Mar. 20, 2020) (precedential), and, particularly, the effect of Samsung’s stipulation in related litigation, in accordance with Sotera Wireless, Inc. v. Masimo Corp., IPR2020-01019, Paper 12 (PTAB Dec. 1, 2020) (precedential as to § II.A). likelihood that it would prevail in showing the unpatentability of at least one of the Challenged Claims. Accordingly, we institute an inter partes review of the Challenged Claims on all grounds raised in the Petition.” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateOther
“(1) Petitioner asserts that substantially the same two claim limitations lack written description support in the ’094 application and U.S. Patent Application No. 13/856,392 (“the ’392 application”) (compare Pet. 23–27, with IPR2022-01327, Paper 4 (petition) at 23–27); (2) Petitioner asserts that because these limitations lack written description support in the ’094 and ’392 applications, the Challenged Claims are not entitled to the priority date of either of these applications and, therefore, Hardin ’665 (the pre-issuance publication of the ’094 application) is available as prior art to the Challenged Claims (compare Pet. 1, 2, 27–28, with IPR2022-01327, Paper 4 at 1, 2, 27–28);” slip op. at 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“(3) Petitioner asserts that the same combination of references— Hardin ’665 and Salmre—would have rendered the subject matter of the claims challenged in each petition obvious to one of ordinary skill in the art at the time of the invention (compare Pet. 28–62, with IPR2022-01327, Paper 4 at 28–63); (4) Petitioner asserts the same reasons with rational underpinning as to why one of ordinary skill in the art would have been motivated to combine the teachings of Hardin ’665 and Salmre as proposed with a reasonable expectation of success (compare Pet. 62–68, with IPR2022-01327, Paper 4 at 63–69);” slip op. at 16
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“(6) Patent Owner relies on the same argument and evidence to assert that we should exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 (PTAB Mar. 20, 2020) (precedential) (compare Prelim. Resp. 61–66, with IPR2022-01327, Paper 9 at 61–66);” slip op. at 16
Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites PhillipsPatents in suitUS 10,049,387 - PTAB · Feb 8, 2023 · IPR2022-01328 · APJ Bart A Gerstenblith · IPR · Institution
The Board instituted review of claims 10–18, 31, and 32 under § 103 over Hardin ’665 and Salmre, finding a reasonable likelihood of unpatentability.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“presented in the petition . . . and any [preliminary] response . . . 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.” 35 U.S.C. § 314(a) (2018). For the reasons below, Petitioner has established a reasonable 1 Petitioner’s Preliminary Reply is limited to the issue of discretionary denial pursuant to Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 (PTAB Mar. 20, 2020) (precedential), and, particularly, the effect of Samsung’s stipulation in related litigation, in accordance with Sotera Wireless, Inc. v. Masimo Corp., IPR2020-01019, Paper 12 (PTAB Dec. 1, 2020) (precedential as to § II.A). likelihood that it would prevail in showing the unpatentability of at least one of the Challenged Claims. Accordingly, we institute an inter partes review of the Challenged Claims on all grounds raised in the Petition.” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateOther
“Accordingly, for the reasons set forth in IPR2022-01327, Paper 13, we: (1) determine, based on the present record, that the Challenged Claims of the ’387 patent are not entitled to the priority date of the ’094 application, and, therefore, Hardin ’665 is available as prior art to the ’387 patent; (2) determine that, on balance, considering the record presently before us, Petitioner has established a reasonable likelihood that it would prevail in showing that the combination of Hardin ’665 and Salmre would have rendered the subject matter of claims 10–18, 31, and 32 of the ’387 patent obvious to one of ordinary skill in the art at the time of the invention; (3) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Fintiv; and (4) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 325(d).” slip op. at 17
- Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportPriority date, deniedOther
“Accordingly, for the reasons set forth in IPR2022-01327, Paper 13, we: (1) determine, based on the present record, that the Challenged Claims of the ’387 patent are not entitled to the priority date of the ’094 application, and, therefore, Hardin ’665 is available as prior art to the ’387 patent; (2) determine that, on balance, considering the record presently before us, Petitioner has established a reasonable likelihood that it would prevail in showing that the combination of Hardin ’665 and Salmre would have rendered the subject matter of claims 10–18, 31, and 32 of the ’387 patent obvious to one of ordinary skill in the art at the time of the invention; (3) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Fintiv; and (4) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 325(d).” slip op. at 17
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Accordingly, for the reasons set forth in IPR2022-01327, Paper 13, we: (1) determine, based on the present record, that the Challenged Claims of the ’387 patent are not entitled to the priority date of the ’094 application, and, therefore, Hardin ’665 is available as prior art to the ’387 patent; (2) determine that, on balance, considering the record presently before us, Petitioner has established a reasonable likelihood that it would prevail in showing that the combination of Hardin ’665 and Salmre would have rendered the subject matter of claims 10–18, 31, and 32 of the ’387 patent obvious to one of ordinary skill in the art at the time of the invention; (3) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 314(a) and Fintiv; and (4) decline to exercise our discretion to deny institution pursuant to 35 U.S.C. § 325(d).” slip op. at 17
§ 102 anticipation§ 103 obviousness§ 112 disclosureDiscretionary denialcites PhillipsPatents in suitUS 10,049,387
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.