• Cisco Systems, Inc. v. Portsmouth Network Corp.No claims unpatentable
  PTAB · Mar 31, 2026 · IPR2024-01450 · APJ Peter D Shapiro · IPR · Final written decision

  Claims 1–4, 6–11, and 13–20 were not shown unpatentable because Dziong and Sathyanath do not teach the claimed sharing definition for existing connections with allocated bandwidth.

  RulingsFinal written decision

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

    “First, the claims use present-tense language, “one or more other connections, which have respective bandwidths and which are permitted to share a bandwidth allocation with the new connection.”3 Ex. 1001, claim 1 (emphasis added). The exclusive use of the present tense have indicates “other connections” must have current possession of the bandwidth. For these other connections to share bandwidth with a newly established connection, they must already exist and have bandwidth ready for immediate use, rather than merely holding a dormant “reservation” pending a network failure. See PO Supp. Br. 1. The Federal Circuit addressed a similar situation where the Court found the present-tense limitation “is connected to the computer network” means a device was required to be connected at the” slip op. at 15

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “combination, do not teach or suggest limitations 1.2 and 1.3 requiring: providing a sharing definition specifying one or more other connections, which have respective bandwidths and which are permitted to share a bandwidth allocation with the new connection, such that a total bandwidth allocated jointly to the new connection and to the other connections in any given segment is equal to a maximum of the requested bandwidth and of the bandwidths of the other connections in the given segment Ex. 1001, limitations 1.2, 1.3 (emphasis added); see PO Resp. 17–22; Sur-reply 4–5, 12–14. As discussed above in Section II.C.2, we interpret “other connections” to mean “existing connections in the network that already have bandwidth allocated to them.” Because the information shared in Dziong and Sathyanath, described below, relates to reserved protection paths, rather than existing connections that have bandwidth that can currently transmit network traffic, the references do not teach or suggest the “other connections” part of the sharing definition in limitations 1.2 and 1.3. Dziong describes advertising, across the network, the amount of bandwidth reserved for recovery on each link that would be activated when a protected link fails. See, e.g., Ex. 1005 ¶ 60; Pet. 36. Once activated, network traffic from a “primary path” failure is rerouted to these recovery paths. See Ex. 1005 ¶¶ 7–9, 70, 83. Petitioner points to this advertising of the reserved bandwidth information as teaching the claimed “sharing definition.” Pet. 33–36 (arguing that the “protection paths [in Dziong] have bandwidth reservations” and “share an overall protection bandwidth reservation”); Reply 21–23. However, since the advertised information only contains information about the recovery paths “that would be activated” upon a primary path failure, such paths are not existing connections that already have bandwidth allocated to them, and therefore do not teach the claimed “other connections” that are part of the sharing definition. See, e.g., Ex. 1005 ¶ 60.” slip op. at 43

  Patent outcomesUS 7,596,088 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,596,088
• Penumbra, Inc. v. Rapidpulse, Inc.No claims unpatentable
  PTAB · Feb 17, 2026 · IPR2024-01261 · APJ Jamie T Wisz · IPR · Final written decision

  Claims 1–20 were not shown unpatentable because the asserted combinations did not teach the claimed predetermined cycle for controlling distal fluid flow.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “(1) a person with a B.S. in engineering or an equivalent field, with two-four years of academic or industry experience in aspiration embolectomy and thrombectomy or comparable industry experience who would, where appropriate, work or consult with others, including a physician, to develop embolectomy or thrombectomy devices; or (2) an interventional neurosurgeon with at least three years of experience developing and/or using medical devices in embolectomy or thrombectomy procedures, and who would, where appropriate, work or consult with others, including an engineer, to develop such a medical device. Pet. 11 (citing Ex. 1005 ¶ 48). Petitioner also contends that, “[a] person with less education but more relevant practical experience, or more relevant education but less practical experience, may also meet this standard.” Id. Patent Owner states that for purposes of its PO Response, it “accepts ¶ 44). We adopt Petitioner’s characterization because it is consistent with the level of skill in the art at the time of the invention as reflected by the ’402 patent and the cited prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))).” slip op. at 8

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

    “specification explicitly includes sensors similar to those in the prior art in support of their argument that the claimed “predetermined cycle” must not exclude the use of such sensors. Pet. Reply 15 (citing Ex. 1001, 32:55–33:7, 40:66–41:5, 44:9–29). We reviewed the portions of the specification cited by Petitioner. We agree with Patent Owner that one excerpt discussing sensor use appears to be directed to triggering the predetermined cycle rather than causing timing changes during the cycle itself (Ex. 1001, 32:55–66) (describing use of a pressure sensor to “determine when the vacuum channel 3 is clogged by a thrombus and automatically perform the unclogging procedures described herein”), while another excerpt discusses a sensor that Petitioner that the ’402 patent discusses the use of sensors to “tune” the system and that such “tuning” can be done statically (setting the cycle timing in advance) or dynamically (adjusting the timing during the cycle itself). See Ex. 1001, 48:19–49:50. Overall, we find that these disclosures involving sensors demonstrate that sensors may be used in various ways in different embodiments. However, none of these disclosures explicitly discuss the use of sensors in conjunction with a “pre-determined cycle.” Therefore, we find that the ’402 patent specification’s discussion of “sensors” are not particularly informative as to the appropriate construction of a “predetermined cycle” and do not outweigh the other explicit disclosures of “predetermined cycle” in the patent. We next turn to the other intrinsic evidence discussed by the parties — the prosecution history. As discussed by Patent Owner, in the Notice of Allowance, the Examiner found that Garrison did not teach or suggest a “predetermined cycle” because Garrison’s controller “changed the cycle of opening and closing the valves based on feedback from sensors.” Ex. 1004, 86. We acknowledge that the patent applicant filed subsequent comments during prosecution in which they stated that they “do[] not concede that the Examiner’s characterizations of the terms of the claims and the prior art are correct.” Id. at 29. However, we agree with Patent Owner that the importance of the Examiner’s statement in the Notice of Allowance does not rely on it being an express disclaimer (a standard which it does not meet). PO Sur-reply 8. We also considered Petitioner’s contention that the Examiner’s interpretation of Garrison may have been in error (PO Resp. 16); however, even if this were true, the Examiner’s statement still provides helpful insight into how the Examiner was interpreting the term sensors to change the opening and closing of valves during a cycle was not a “predetermined cycle.” Id. at 86. In sum, we find that Patent Owner’s proposed construction is consistent with the usage of the term “predetermined cycle” in the ’402 patent specification and prosecution history. Thus, after considering all of the cited evidence, we construe “predetermined cycle” to mean that “the timing of the sequence of valve operations in the cycle is determined beforehand, i.e., fixed, rather than varying based on feedback after operation begins.”” slip op. at 14

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

    “2. Other Terms The parties also provided proposed constructions for the limitations of “[limited/limiting] to a positive amount of exit flow” and “control[ling] fluid flow in and out from the distal end of the catheter.” See Pet. 15–16; Pet. Reply 1–8; PO Resp. 22–24; PO Sur-Reply 2–6. However, having evaluated the arguments and evidence before us, we determine that construction of these terms is not necessary for purposes of this Decision. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)).” slip op. at 16

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot shown unpatentableNot shown unpatentable

    “We agree with Patent Owner that neither Petitioner nor Mr. Brown propose any combination of Yang and Mullins that does not include Mullins’s pressure sensor in order “to control fluid flow in and out from the distal end of the catheter.” Indeed, in addressing the “predetermined cycle” limitation, Mr. Brown contends that Mullins discloses a “cycling controller that ‘varies aspiration pressure according to sensed pressure within the catheter lumen.’” Ex.1005 ¶¶ 131–32 (citing, e.g., Ex.1008, 27:40–28:20 (“[a] novel aspect of this pump system is the incorporation of feedback into the pump algorithm in order to produce more effective pressure cycling”)). This use of a sensor to change pressure during a cycle, is not a “predetermined cycle” under our construction. combinations is its discussion of distal end flow control, not for its sensors.” Pet. Reply 17 (citing Ex. 1035 ¶ 83). However, Petitioner’s obviousness grounds rely on the combination of Yang and Mullins, especially with regard to Mullins’s disclosure of “a controller” in order “to control fluid flow in and out.” As discussed above, Mullins relies on the sensor-feedback approach in order to control flow and we find that Petitioner has not presented persuasive evidence of how the combined disclosures of Yang and Mullins would control flow without using Mullins’s sensor feedback approach. See W.L. Gore & Assocs., Inc. v. Garlock, Inc., 721 F.2d 1540, 1550 (Fed. Cir. 1983) (error to “consider[] … references in less than their entireties, i.e., in disregarding disclosures in [them] … that diverge from and teach away from the invention”). Therefore, we determine that Petitioner has not sufficiently shown that the combination of Yang and Mullins discloses or renders obvious “a controller configured to open and close the vacuum valve and the vent valve in a predetermined cycle to change a level of vacuum at the distal end of the catheter and to control fluid flow in and out from the distal end of the catheter.” Accordingly, having considered the parties’ respective evidence and arguments, we find that Petitioner has not shown by a preponderance of the evidence that claim 1 of the ’402 patent would have been unpatentable as obvious over the combination of Yang and Mullins.” slip op. at 27

  Patent outcomesUS 11,406,402 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,406,402
• Axion Biosystems, Inc. v. Agilent Technologies, Inc.No claims unpatentable
  PTAB · Feb 2, 2026 · IPR2024-01467 · APJ David Cotta · IPR · Final written decision

  Claims 1–8 and 11–15 were not shown unpatentable over Xu-752 and Jones because the proposed combination did not establish obvious millisecond time resolution.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner contends a person of ordinary skill in the art (“POSA”) as of May 2009 “would have had a B.S. in electrical/mechanical/biomedical engineering or biological science, or a related field, and approximately 2 years of relevant experience or equivalent study in systems and methods for bioanalysis of cells.” Pet. 14 (citing Ex. 1003 ¶¶ 23–25). Patent Owner adopts this definition for purposes of this proceeding. PO Resp. 9 (citing Ex. 2009 ¶ 19). We find Petitioner’s description of the level of ordinary skill in the art to be consistent with the level of skill reflected in the ’508 patent and in the prior art of record. Accordingly, we apply Petitioner’s definition in this decision.” slip op. at 7

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

    “As used herein, “impedance measurement at millisecond time resolution” refers to the ability to perform a series of at least two consecutive impedance measurements within milliseconds of one another for each and every well of the system where each well is associated with an electrode array for impedance measurement. In each instance the time between two consecutive impedance measurements are less than 300 milliseconds from one another. Id. at 10:8–15. There does not appear to be any dispute as to the definitional nature of the first sentence in the passage above. That is, the parties agree that millisecond time resolution should be construed to mean: “the time between two consecutive impedance measurements for each and every well being evaluated in the claimed apparatus or system.” PO Resp. 15 (proposing construction); Pet. Reply. 23 (“Axion also agrees that the term ‘millisecond time resolution’ is ‘the time between two consecutive impedance measurements for each and every well being evaluated in the claimed apparatus or system.’”). The parties also agree that we do not need to determine whether the time interval between two consecutive impedance measurements is less than 300 milliseconds, as set forth in the definition portion of the specification, or whether it can be met by some other time interval, as suggested by other portions of the specification. See e.g., Ex. 1001, 23:49–55 (explaining that “[i]n some embodiments 500 millisecond time resolution is sufficient”), 24:37–39 (similar); PO Resp. 15 (arguing that “the distinction between 300 milliseconds and 500 milliseconds is immaterial to the dispute in this IPR because Jones teaches a 1.5 second update period, thus at least three times longer than the 500 milliseconds formulation”); Pet. Reply 23–24 (section headed “[Petitioner] Agrees That, In This IPR, The 300 Versus 500 Milliseconds Distinction is Immaterial To Addressing the Unpatentability of the Challenged Claims”), see also, Pet. Reply 24–26 (asserting that the claims are indefinite because it is not clear whether they require a 300 or a 500 millisecond time interval, but arguing that “the claims’ unpatentability can be determined without resolving the 300 versus 500 milliseconds indefiniteness issue”). We agree with the parties that “millisecond time resolution” should be construed to mean: “the time between two consecutive impedance measurements for each and every well being evaluated in the claimed apparatus or system.” PO Resp. 15; Pet. Reply. 23. We further agree that resolution of this case does not require that we determine whether the period between two consecutive impedance measurements is less than 300 or less than 500 milliseconds because Petitioner has not carried its burden under either time interval.” slip op. at 7

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “Ex. 1003 ¶ 179. But Dr. Kim does not cite to any additional supporting evidence or provide any technical reasoning to support his statements. The notion that one can reduce the time between measurements by, e.g., reducing the number of frequencies measured, has intuitive appeal and appears mathematically correct. However, the absence of technical reasoning and supporting evidence diminishes the persuasiveness of Dr. Kim’s testimony that the POSA would made such modifications to reduce the time between measurements. Dr. Kim does provide some technical reasoning in connection with his discussion of eliminating all reference channels as a way to get the time resolution down to the levels required by, e.g., claim 14, which recites a millisecond time resolution of “less than 5 milliseconds.” See e.g., Ex. 1003 ¶ 172 (“A POSA seeking to study biological cell phenomena occurring on the order of a few milliseconds would have recognized that after measuring the reference network channels at the start, the reference network channels would not need measured again for some time, e.g., because temperature and other drift factors do not change appreciably on a millisecond time scale.”). However, even if we were to credit this testimony, Dr. Kim still lacks support and reasoning for the selection of the other parameters in his noreference-channel calculations. See, e.g., id. ¶ 173 (positing, but not providing technical reasoning for using, a no-reference-channel impedance system with 16 wells, a single 10kHz measurement frequency, and 16 daughter boards that measure simultaneously rather than sequentially).” slip op. at 29

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

    “Given that Jones’s only exemplified embodiment targets a 1.5 second update period, that Jones does not suggest reducing the update period, and that much of Jones’s focus is on benefits other than speed of measurement, Jones’s impedance analyzer seems an unlikely choice for a POSA seeking to take measurements having millisecond time resolution. Put another way, we find no persuasive non-hindsight reason that supports Petitioner’s assertion that the POSA would have sought to apply Jones’s impedance analyzer to Xu-752’s system in order to take measurements in millisecond time resolution.” slip op. at 22

  Patent outcomesUS 11,906,508 not shown unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,906,508
• Cisco Systems, Inc. v. Portsmouth Network Corp.No claims unpatentable
  PTAB · Aug 4, 2025 · IPR2024-00503 · APJ Charles J Boudreau · IPR · Final written decision

  Claims 1–18 were not shown unpatentable because the asserted obviousness combinations did not cure the failure to show the claimed request and routing steps.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art in the field of the ’279 patent in January 2001 “would have had a working knowledge of the network communication technologies that are pertinent to the ’279 patent, including network flow allocation in a ring topology.” Pet. 12. More specifically, Petitioner argues, a person of ordinary skill in the art “would have had a master’s degree in computer science, computer engineering, or an equivalent, and two years of professional experience relating to network communications and resource allocations,” where “[a]dditional work experience can substitute for specific educational background, and vice versa.” Id. (citing Ex. 1003 ¶ 20). Patent Owner represents that it “does not dispute Petitioner’s definition” for the purposes of its Response. PO Resp. 5. We find Petitioner’s proposal is consistent with the evidence of record, including the asserted prior art and the ’279 patent, and, therefore, we likewise adopt Petitioner’s proposed definition of the level of ordinary skill in the art for purposes of this Decision.” slip op. at 11

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

    “Neither party contends that any formal claim construction is necessary. See Pet. 12 (“Petitioner submits that, for the purposes of this proceeding and the grounds presented herein, no claim term requires express construction.”); PO Resp. 4 (“Here, at this stage in the proceeding, Patent Owner will apply the ordinary and customary meaning to the ’279 Patent’s claim terms.”). Patent Owner notes, however, that Petitioner had asserted specific constructions in the Cisco litigation for the term “predetermined,” as recited in claims 1, 10, 14–16, and 18, and for the term “quantum.” PO Resp. 4. Specifically, according to Patent Owner, Petitioner proposed that “predetermined” be construed as “determined before the data flow request” and that “quantum” be construed as “an amount of a requested resource by which to increase or decrease.” Id. (citing Ex. 2007). Patent Owner contends asserted prior art combinations disclose or render obvious the challenged claims under these constructions. Id. Because our conclusion that Petitioner has not demonstrated that any of the challenged claims are unpatentable does not turn on the construction of either “predetermined” or “quantum,” there is no need for us to construe those terms. See Realtime Data, 912 F.3d at 1375.” slip op. at 12

  • Strike new argumentNew argument disregardedDecided for patent owner

    “We again are not persuaded by Petitioner’s argument. As an initial matter, we find no argument with respect to “best effort data traffic” or dropped packets in the Petition. See Tr. 12:10–21 (conceding that “the phrase ‘best effort’ was not in the Petition” but arguing that it was raised in response to the Patent Owner Response). Moreover, we are unable to identify any argument in the Patent Owner Response to which this line of argument is properly responsive, and Petitioner does not identify any such line of argument. Instead, Petitioner’s argument appears to advance belatedly a new theory. See 37 C.F.R. § 42.23(b); Patent Trial and Appeal Board Consolidated Trial Practice Guide (Nov. 2019), 73–74, available at” slip op. at 43

  • Expert testimonyPatent owner expert creditedPetitioner expert discountedMixed

    “We credit the supporting testimony of Dr. Olivier on the points discussed above, as it is explained sufficiently and consistent with the testimony simply mirrors the Petition and does not explain sufficiently why a person of ordinary skill in the art would have understood Kovvali in the manner Petitioner asserts. See Pet. 35; Reply 17–18; Ex. 1003 ¶ 83.” slip op. at 44

  Patent outcomesUS 7,035,279 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,035,279
• Whatfix Inc. v. Walkme Ltd.No claims unpatentable
  PTAB · Mar 28, 2025 · IPR2024-00065 · APJ Charles J Boudreau · IPR · Final written decision

  Claims 1–20 were not shown unpatentable under the Symons and Williams, Allen, or Krishnan and Radhakrishnan obviousness grounds.

  RulingsFinal written decision

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “Petitioner proposes that a “person of ordinary skill in the art (‘POSITA’) in the field of the ’317 patent would have [had a] bachelor’s degree in engineering or computer science and two years of experience working on NLP [natural language processing] or automation processes” or “[a]lternatively . . . would have [had] five to six years of experience working on NLP or automation processes.” Pet. 6 (citing Ex. 1003 ¶¶ 43–45). We adopted Petitioner’s proposal for purposes of the Decision on Institution, explaining that it appeared to be consistent with the evidence of record, including the asserted prior art and the ’317 patent. Dec. 12. is inconsistent with the asserted Symons prior art and with factors (4)–(6) set forth in Daiichi Sankyo. PO Resp. 20–21 (citing Ex. 2002 ¶¶ 36–45). According to Patent Owner, the technology of the ’317 patent was “evolving rapidly” and the level of sophistication in the technology was “relatively low” in November 2017. Id. at 21–22 (citing Ex. 1004, 1–2; Ex. 1009, 2; Ex. 2002 ¶ 42; Ex. 2003 (transcript of June 26, 2024, deposition of Dr. Beigi), 141:2–9, 191:18–197:5; Ex. 2007; Ex. 2008). Further, Patent Owner contends, “[a]ctive work[ers] in the field, like Symons,[8] had less experience than [Dr. Beigi] proposed.” Id. at 22 (citing Ex. 2002; Ex. 2003, 112:12–24). Accordingly, Patent Owner argues, “[t]he evidence of record demonstrates a more appropriate level of skill would [be] a worker who had some education, formal or informal, in computer science and 1–2 years’ work experience with chatbots using NLP and/or automation processes.” Id. (emphasis omitted) (citing Ex. 1003 ¶ 44; Ex. 2002 ¶ 44; Pet. 5–6). “Under Patent Owner’s more appropriate analysis,” Patent Owner contends, “Dr. Beigi’s interpretation of what a POSITA would understand are overstated,” as “[h]e expects a POSITA to have ‘more experience’ (like himself) and apply a more ‘technically correct’ (in his view) understanding of the prior art than less skilled authors and artisans would have understood.” Id. (citing Ex. 2003, 141:2–9, 191:18–197:5). Nonetheless, Patent Owner argues, “[s]hould the Board continue to apply Petitioner’s” slip op. at 12

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

    “standard as would be used by a district court to construe a claim in a civil action involving the validity or infringement of a patent. 37 C.F.R. § 42.100(b). Under that standard, claim terms are given their ordinary and customary meaning, as would have been understood by a person of ordinary skill in the art at the time of the invention, in light of the language of the claims, the specification, and the prosecution history of record. Id.; Phillips v. AWH Corp., 415 F.3d 1303, 1312–19 (Fed. Cir. 2005) (en banc); Thorner v. Sony Comput. Entm’t Am. LLC, 669 F.3d 1362, 1365–66 (Fed. Cir. 2012). “The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (quoting Vivid Techs., Inc. v. Am. Sci. Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))). construction” “[f]or purposes of this Petition.” Pet. 6. Patent Owner similarly represents that “[t]he parties agree that the claim terms used in the ’317 Patent claims have their ‘ordinary and custom[ary] meanings of terms’ as would be understood by a POSITA as of November 5, 2017.” PO Resp. 24. After reviewing the parties’ arguments and evidence, we determine that no express claim construction is necessary. See Realtime Data, 912 F.3d at 1375.” slip op. at 15

  • Expert testimonyPatent owner expert creditedDecided for patent owner

    “Ex. 1042 ¶¶ 35–37). Further, Petitioner asserts, “the Petition relies on Williams, not Symons, for its teachings of a ‘web-based’ target system.” Id. (citing Pet. 40). Petitioner does not, however, address Patent Owner’s main point, i.e., that the Petition relies on Symons’s illustration of its RPA bot purportedly filling in a text input field in the GUI of the Cronos Email Signature Generator for limitation 1[g] but relies on Symons’s illustration of its RPA bot interacting with a widget in Internet Explorer for limitation 1[h], despite the recitation in limitation 1[h] of “interacting with a widget in the GUI.” See, e.g., PO Resp. 38. Dr. Beigi acknowledges that, “[a]ccording to the ’317 patent, a widget is a GUI element,” and he concludes, with reference to Petitioner’s annotated version of the screenshot from page 13 of Exhibit 1006 reproduced above, that “Symon[s]’s GUI button is a widget in a GUI.” Ex. 1003 ¶ 100 (emphasis added) (citing Ex. 1001, 10:19–21). But neither the Petition, nor the Reply, nor Dr. Beigi’s testimony persuasively explains how a dialog box in Internet Explorer teaches or suggests a widget in the Cronos GUI. The Reply’s contention that “the Petition relies on Williams . . . for its teachings of a ‘web-based’ target system” is unavailing, because the issue is not whether either the Cronos program or Internet Explorer is “web-based”12 but whether Petitioner has identified a teaching or suggestion of an implementation of an automation process that fills in a text input field in a GUI of a web-based target system and interacts with a widget in the same GUI. 12 In this regard, we credit Mr. Zatkovich’s statement that Internet Explorer is local to and resident on the user’s computer. Ex. 2002 ¶¶ 161–162; cf. Ex. 2003, 219:24–220:5 (Dr. Beigi testifying that he is “not sure where this Windows software is running”).” slip op. at 39

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

    “Petitioner’s reasoning fails to explain “how the combination of the two references was supposed to work.” See Personal Web Techs., LLC v. Apple, Inc., 848 F.3d 987, 994 (Fed. Cir. 2017). More specifically, Petitioner fails to explain how or why a person of ordinary skill in the art would be motivated to perform Krishnan’s automation process (i.e., fulfilling customer requests) by implementing an “automation process by interacting with a Graphical User Interface (GUI)” and “simulating user input to the GUI,” as purportedly taught by Radhakrishnan. Petitioner’s arguments are focused toward using Radhakrishnan’s RPA bot to perform Krishnan’s customer service requests (i.e., automation process) but fail to explain how Radhakrishnan’s RPA bot’s mirroring of the user’s operations (i.e., the simulation on the displayed user interface) as applied in Krishnan would work or provide sufficient reasoning to do so. See Personal Web, 848 F.3d at 993–994 (“[I]t does not imply a motivation to pick out . . . two references and combine them to arrive at the claimed invention”); In re Kahn, 441 F.3d 977, 986 (Fed. Cir. 2006) (“[M]ere identification in the prior art of each element is insufficient to defeat the patentability of the combined subject matter as a whole”).” slip op. at 60

  Patent outcomesUS 11,558,317 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,558,317
• Whatfix Inc. v. Walkme Ltd.No claims unpatentable
  PTAB · Mar 18, 2025 · IPR2023-01379 · APJ Charles J Boudreau · IPR · Final written decision

  The Board held claims 1–6, 9–16, and 18–21 not shown unpatentable on the asserted obviousness grounds, because Petitioner failed to prove unpatentability by a preponderance of the evidence.

  RulingsFinal written decision

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “B. Level of Ordinary Skill in the Art Determining whether an invention would have been obvious under” slip op. at 13

  • BurdenFwd all claims patentableNot shown unpatentable

    “the claims challenged in the inter partes review are unpatentable. For the reasons discussed below, we conclude that Petitioner has not established by a preponderance of the evidence that any of the challenged claims are unpatentable.” slip op. at 2

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “each of its elements was, independently, known in the prior art.” KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 418 (2007). An obviousness determination based on a combination of references requires finding “both ‘that a skilled artisan would have been motivated to combine the teachings of the prior art references to achieve the claimed invention, and that the skilled artisan would have had a reasonable expectation of success in doing so.’” Intelligent Bio-Sys., Inc. v. Illumina Cambridge Ltd., 821 F.3d 1359, 1367–68 (Fed. Cir. 2016) (citation omitted); see KSR, 550 U.S. at 418. Further, an assertion of obviousness “cannot be sustained by mere conclusory statements; instead, there must be some articulated reasoning with some rational underpinning to support the legal conclusion of obviousness.” KSR, 550 U.S. at 418; In re NuVasive, Inc., 842 F.3d 1376, 1383 (Fed. Cir. 2016) (a finding of a motivation to combine “must be supported by a ‘reasoned explanation’” (citation omitted)).” slip op. at 12

  Patent outcomesUS 11,258,732 not shown unpatentable
  § 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,258,732
• Peloton Interactive, Inc. v. NEC CorporationNo claims unpatentable
  PTAB · Mar 3, 2025 · IPR2023-01239 · APJ Michael J Strauss · IPR · Final written decision

  Claims 1, 2, 4, 5, 7, 11, 12, 14–18, 20–23, and 25–29 were not determined unpatentable because the asserted obviousness grounds failed to establish the claimed code-rate determination.

  RulingsFinal written decision

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

    “standard as would be used by a district court to construe a claim in a civil action involving the validity or infringement of a patent. 37 C.F.R. § 42.100(b). Under that standard, claim terms are given their ordinary and customary meaning, as would have been understood by a person of ordinary skill in the art at the time of the invention, in light of the language of the claims, the specification, and the prosecution history of record. Id.; Phillips v. AWH Corp., 415 F.3d 1303, 1312–19 (Fed. Cir. 2005) (en banc); Thorner v. Sony Comput. Entm’t Am. LLC, 669 F.3d 1362, 1365–66 (Fed. Cir. 2012). “The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (quoting Vivid Techs., Inc. v. Am. Sci. Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 11

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner, supported by the testimony of Dr. Reader, argues that a person of ordinary skill in the art (“POSITA”) “would have a bachelor’s degree, or equivalent, in electrical engineering, computer science, a related field, and 2–3 years’ experience researching, designing, or developing content delivery systems and related hardware, software, and firmware, or equivalent experience.” Pet. 14 (citing Ex. 1006 ¶¶ 67–69). Petitioner further argues “[o]ne having less education but more practical experience, or more education and less experience, might also meet this standard.” Id. Patent Owner does not dispute Petitioner’s definition or offer an alternative level or skill in the art. PO Resp. 12 (citing Pet. 14; Ex. 2012). Instead, “[f]or the purposes of this PO Response only, Patent Owner applies Petitioner’s definition of POSITA.” Id. Thus, on this record, the parties agree upon the proposed level of ordinary skill in the art, and this level is consistent with our review and understanding of the technology and descriptions in the ’101 patent and the prior art references that disclose content delivery systems. For purposes of this Decision, we rely on Petitioner’s proposed level of ordinary skill in the art.” slip op. at 11

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

    “the gap between the playback deadline and the target schedule, (td(n) − tT(n)), is the target buffer duration, i.e., ‘the desired client buffer duration (in client time).’” Id. at 22–23 (quoting Chou ¶ 74). Petitioner also argues that “in efforts to match upper bound tb(n) to target schedule tT(n), Chou takes into consideration the time duration between target schedule tT(n) and the playback deadline td(n).” Thus, it appears Petitioner assembles three separate and distinct time intervals from Chou’s timing diagrams and equations to construct one contiguous time interval equivalent to claim 1’s remaining time. However, Chou does not recognize the time interval that Petitioner posits, and Petitioner has not persuasively shown that this combined time interval exists as a teaching in the prior art and is used as part of any step or decision involved in determining the code rate. As admitted by Petitioner’s expert, Dr. Reader, Petitioner’s analysis “used the claims as a road map to find limitations in the prior art.” Ex. 2015, 76:4–9 (Reader Deposition Transcript). See also Tr. 28:20–31:2 (Petitioner’s response to whether identification of and integration of separate time ranges described by Chou is hindsight reconstruction, Petitioner argues Chou’s device operates such that code rate is based on remaining time). Under the circumstances, this is improper because Petitioner and Dr. Reader do not justify this combination of separately identified time ranges except based solely on hindsight reconstruction of the claimed invention. However, even if that were not the case, we are not persuaded that Chou or the other asserted prior art references suggest using the combined time interval td(n) − ta(n) as the basis for any decision related to determining the code rate.” slip op. at 37

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

    “d) Analysis In our Institution Decision, although expressing some uncertainty with respect to certain of Patent Owner’s arguments on the preliminary record then before us, “we [were] not persuaded by Petitioner’s contentions that [(1)] Wang teaches [1d]’s code rate” (Dec. 53 (citing Pet. 62–65) or (2) “a POSITA would have been motivated to combine the teachings of Chou and Wang” (id. at 54 (citing Pet. 74)). Petitioner does not dispute those determinations in its Reply or otherwise. Furthermore, Petitioner does not address or otherwise dispute Patent Owner’s arguments challenging the asserted obviousness of claims 1, 4–6, 10–16, and 19–26 over the combined teachings of Chou and Wang. Thus, for at least the reasons set forth in our Institution Decision, we agree with Patent Owner that Petitioner fails to show that (1) one skilled in the art would have combined the teachings of Chou and Wang or (2) the combined teaching of Chou and Wang renders limitation 1(d) obvious. e) Conclusion Regarding Claim 1 For the foregoing reasons, we determine that Petitioner has not shown by a preponderance of the evidence that independent claim 1 is unpatentable over the combination of Chou and Wang.” slip op. at 47

  Patent outcomesUS 8,752,101 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,752,101
• Arista Networks, Inc. v. Corrigent CorporationNo claims unpatentable
  PTAB · Dec 3, 2024 · IPR2023-00839 · APJ Charles J Boudreau · IPR · Final written decision

  Claims 1–26 were not shown unpatentable under either § 103 ground because the evidence did not establish the claimed LAG use between MPLS switches or explain how the references would be combined.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedOther

    “Consistent with our Institution Decision, we adopt Petitioner’s articulation of the level of ordinary skill in the art, apart from the phrase “at least” modifying the number of years of professional experience. See Dec. 17–18. As we previously explained, inclusion of such qualifiers renders the articulation vague by being open-ended thus encompassing the level of experience of an expert, someone with more than ordinary skill in the art. Id. at 18. Petitioner’s articulation otherwise appears consistent with the level of skill in the art at the time of the invention as reflected in the asserted prior art.” slip op. at 9

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

    “Corp., 415 F.3d 1303, 1312–17 (Fed. Cir. 2005) (en banc) and related cases. See 37 C.F.R. § 42.100(b). Under that precedent, the words of a claim are generally given their “ordinary and customary meaning,” which is the meaning the term would have to a person of ordinary skill at the time of the invention, in the context of the entire patent including the specification. Phillips, 415 F.3d at 1312–13. Neither party proposes any express claim constructions. Pet. 4; PO Resp. 3. Based on the parties’ arguments, we see no need to expressly construe any terms to resolve the dispute before us. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 10

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

    “Pet. Reply 10–11. Despite Petitioner’s arguments, we are not persuaded that a person of ordinary skill would have been motivated by knowledge of Rabie to combine the teachings of RFC 3209 and Raz at the time of the invention of the ’602 patent. First, the ’602 patent claims a priority date of May 6, 2005, which is not challenged by Petitioner (see Pet. 3), whereas Rabie was published more than two months later. Ex. 1021, code (65). Moreover, the question is not whether it may have been known at the time of the invention that a LAG could be used between switches, but rather whether the combined teachings of RFC 3209 and Raz would have motivated a person of ordinary skill in the art to utilize a LAG between switches, as claimed, when neither RFC 3209 nor Raz teaches such usage or suggests the existence of a problem that such usage would solve. We are not persuaded that they would.” slip op. at 36

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

    “Pet. Reply 10–11. Despite Petitioner’s arguments, we are not persuaded that a person of ordinary skill would have been motivated by knowledge of Rabie to combine the teachings of RFC 3209 and Raz at the time of the invention of the ’602 patent. First, the ’602 patent claims a priority date of May 6, 2005, which is not challenged by Petitioner (see Pet. 3), whereas Rabie was published more than two months later. Ex. 1021, code (65). Moreover, the question is not whether it may have been known at the time of the invention that a LAG could be used between switches, but rather whether the combined teachings of RFC 3209 and Raz would have motivated a person of ordinary skill in the art to utilize a LAG between switches, as claimed, when neither RFC 3209 nor Raz teaches such usage or suggests the existence of a problem that such usage would solve. We are not persuaded that they would.” slip op. at 36

  Patent outcomesUS 9,118,602 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 9,118,602
• Samsung Electronics Co., Ltd. v. Almondnet, Inc.No claims unpatentable
  PTAB · Feb 2, 2024 · IPR2022-01259 · APJ Charles J Boudreau · IPR · Final written decision

  The Board held claims 35–51 not unpatentable because the asserted combinations did not show that the claimed computers automatically authorize a distinct third-party second media property to allow ad display.

  RulingsFinal written decision

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

    “Having considered the parties’ arguments, we agree with Petitioner that the recited “system” of claim 35 does not necessarily exclude a “third-party second media property.” As Petitioner points out, claim 35 uses the open-ended transitional phrase “comprising,” such that the recited “system comprising one or more computers” may include components other than the recited “one or more computers.” See Pet. Reply 1 (citing CIAS, Inc. v. All. Gaming Corp., 504 F.3d 1356, 1360 (Fed. Cir. 2007)). Moreover, we agree with Petitioner that the phrase “programmed to implement a method of directing electronic advertisements” more naturally modifies “one or more computers,” rather than “system.” Id. at 3. Nonetheless, it is clear from the plain language of claim 35, as well as from the prosecution history of the related ’745 patent, that the third-party second media property must be distinct from such “one or more computers.” Petitioner’s repeated use of the abbreviation “TPSMP” obscures the fact that claim 35 does not simply recite a “second media property” but instead specifically recites a “third-party second media property.” Ex. 1001, 16:18–19 (emphasis added). Highlighting the significance of the modifier “third-party,” as Patent Owner points out, is the fact that that modifier was added to “second media property” in the phrase “automatically electronically authorizing, with at least one of the computers, a third party second media property to allow display, to the electronic visitor when later visiting the second media property, of an advertisement” in an Examiner’s amendment during prosecution of the ’822 patent’s grandparent ’286 application to avoid certain prior art, and the prosecution record of the ’286 application reflects that this amendment was made to make it clear that the recited “authorizing is being done of an unrelated site.” Ex. 2005, 58; see PO Resp. 10–11. More particularly, as Patent Owner points out, the applicant stated in the cited examiner interview report that “the claim structure already made [it] clear” that “the authorizing is being done of an unrelated site . . . because the phrase ‘authorizing’ a site does not seem to cover a site deciding something on its own,” but that the amendment to specify a “third party second media property” made that requirement “explicit.” Ex. 2005, 58; see PO Resp. 7–8 (quoting the same).” slip op. at 23

  • Skill levelSkill level petitioner adoptedOther

    “We adopt Petitioner’s articulation of the level of ordinary skill in the art, minus the phrases “at least” modifying the education and “or more” modifying the number of years of experience. As we explained in our Institution Decision, although Petitioner’s articulation otherwise appears consistent with the level of skill in the art at the time of the invention as reflected in the asserted prior art, inclusion of such qualifiers render the articulation vague by being open-ended thus encompassing the level of education and experience of an expert, someone with more than ordinary skill in the art. See Dec. 12. Thus, in summary, we find that one with ordinary skill in the art at the pertinent time period would have had a bachelor’s degree in computer science, electrical engineering, computer engineering, or the equivalent, and two years of experience with designing, programming, configuration, and/or analysis/research with Internet or similar network-related processes including, for example, user/entity profile management and/or web-based targeted content delivery, or a related field, where more education could supplement practical experience and vice versa.” slip op. at 12

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot shown unpatentableNot shown unpatentable

    “Having considered the parties’ respective contentions in light of the evidence of record, we conclude that Petitioner has not established by a preponderance of the evidence that claim 35 is unpatentable over the combination of Perry, Wilson, and Bronson. In particular, we are not persuaded that the cited prior art teaches or suggests “a system comprising one or more computers programmed to implement a method . . . comprising: . . . automatically electronically authorizing a third-party second media property to allow display . . . of an advertisement correlated with the profile-attribute information received about the visitor.” Although Figure 1 of Perry depicts a “system” that includes computers programmed to implement a method of distributing advertisements to users over the Internet, we are not persuaded that any component in that system implements a method that includes “automatically electronically authorizing a third-party second media property” to display such advertisements. As Patent Owner points out, Petitioner identifies “Internet publisher computer systems 131 and 132” and “advertising service company computer system 140 comprising one or more CPUs 141” as the recited “one or more computers.” Pet. 7; PO Resp. 11. Although there is no dispute that Publisher Systems 131 and 132 and ASC 140 are computers, we find that neither satisfies the remaining limitations of claim 35, particularly because neither “automatically electronically authoriz[es] a third-party second media property” to display advertisements. As we explain in our claim construction discussion above, we are not persuaded by Patent Owner’s arguments that the recited “system” necessarily must exclude the “third-party second media server.” See supra § III.C. Nonetheless, the third-party second media server still must be separate and distinct from the “one or more computers programmed to implement [the recited] method,” lest the modifier “third-party” be rendered meaningless.” slip op. at 54

  • Expert testimonyPatent owner expert discountedDecided for patent owner

    “Further, Patent Owner did not present Mr. Sherwood as an expert on patent law or claim drafting, and we decline to give substantial weight to his testimony on this issue that is ultimately a matter of law. See Markman v. Westview Instruments, Inc., 517 U.S. 370, 372 (1996) (ruling that the interpretation of patent claims is a matter of law to be determined exclusively by the courts). Still further, Petitioner’s counsel conceded that the formatting of the claim is not dispositive. Tr. 14:14–18.” slip op. at 26

  Patent outcomesUS 8,200,822 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · Markman · KSR · Graham
  Patents in suitUS 8,200,822
• Streck, Inc. / Streck LLC v. Ravgen, Inc.No claims unpatentable
  PTAB · Apr 18, 2023 · IPR2021-01577 · APJ Timothy G Majors · IPR · Final written decision

  Claims 55–61, 68, 69, 80–86, 89–92, 94, 126–130, 132, and 133 were not shown unpatentable under the asserted anticipation and obviousness grounds.

  RulingsFinal written decision

  • Strike new argumentNew argument consideredDenied

    “III. MOTIONS Motion to Strike (Paper 50) Petitioner filed a motion to strike portions of Patent Owner’s Sur- Reply. Paper 50. Patent Owner opposes the motion. Paper 53. Petitioner contends Patent Owner raised new argument about Exhibit 1014 (a paper authored by Dr. Patterson), which was submitted with the filing of the Petition but only cited by Patent Owner for the first time in its Sur-Reply. Paper 50, 1–3; PO Sur-Reply 14 (citing Ex. 1014). According to Petitioner, Patent Owner presents new argument about the reversibility of certain crosslinks caused by formaldehyde, cites new experimental data (in Ex. 1014, Fig. 2.1), and argues such matters would have been known before any possible priority date of the ’277 patent. Paper 50, 1–3. Moreover, Petitioner argues, the untimeliness of Patent Owner’s arguments about Exhibit 1014 prevented the exhibit’s author, Dr. Patterson, from addressing them to provide explanation or context. Id. at 2–3. For the reasons given below, we deny Petitioner’s motion to strike. First, we find that Patent Owner’s arguments on Exhibit 1014 are, on balance, responsive to issues raised by Petitioner in its Reply. It is true that Petitioner submitted Exhibit 1014 with its Petition and that Patent Owner did not cite it until its Sur-Reply. However, the points raised by Patent Owner about Exhibit 1014 respond to certain of Petitioner’s arguments raised for the first time in its Reply. For example, Petitioner argued a POSA would not have been concerned about formaldehyde’s use (such as cross-linking disclosed in Heinmoller that Patent Owner cited in its Response) and that those concerns arose only after the supposed priority date of the ’277 patent. 88 Pet. Reply 8–9. Patent Owner’s citation of Exhibit 1014 is responsive on such points (e.g., it discusses cross-linking with formaldehyde’s use), it published in 2000 and is thus earlier than some references Petitioner argued were too late to evidence a POSA’s knowledge, and, lastly, it was authored by Dr. Patterson and arguably called into question the credibility of rebuttal opinions he offered about the state of a POSA’s knowledge on such issues. Second, Exhibit 1014 does not, ultimately, help Patent Owner as we do not rely on the portions of Exhibit 1014 cited by Patent Owner or Patent Owner’s argument about them. As discussed in our analysis, if cross-linking (as reported in Heinmoller or, for that matter, Exhibit 1014) was a perceived problem, Dr. Patterson provides a credible explanation how it could be and likely was addressed by Pertl.54 Supra Section II(G)(3) (citing Ex. 1047).” slip op. at 88

  • ExcludeDenied

    “by the non-designating party. See generally Paper 60. We nevertheless reviewed the designated testimony. The objections are overruled, but were also considered during review.” slip op. at 90

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

    “evidence that any of the challenged claims are unpatentable based on grounds advanced in the Petition.” slip op. at 93

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot shown unpatentableNot shown unpatentable

    “3. Conclusion For the reasons above, we find Petitioner has not established by a preponderance of the evidence that the combination of Chiu/Lee discloses “an agent that inhibits cell lysis, if cells are present” as recited in independent claims 55 and 81, and the claims depending therefrom. Accordingly, Petitioner has not established that claims 55–59, 61, 68, 69, 80–86, 89, 94, and 126–130 would have been obvious over Chiu and Lee.” slip op. at 52

  Patent outcomesUS 7,332,277 not shown unpatentable
  § 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,332,277

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.