- Uatp IP LLC v. Slick Slide LLCSome claims unpatentablePTAB · Oct 2, 2026 · PGR2024-00054 · APJ Brian D Range · PGR · Final written decision
Claims 22–26 are unpatentable based on obviousness; claims 1–17, 27, and 28 were not shown unpatentable. Patent Owner’s motion to terminate was denied.
RulingsFinal written decision- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownDecided for patent owner
“1. Mesh Layer Petitioner contends “no formal claim construction is necessary in this” slip op. at 13
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable
“5. Analysis On this complete record, we determine that Petitioner’s arguments do” slip op. at 31
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“form of nylon and some form of Teflon (and possible combinations thereof) having the specific coefficient of friction range given in limitation [1c] breaks down, because the building blocks of the obviousness argument are not sufficiently identified in Phillips alone, nor in the supporting testimony. Accordingly, we determine that Petitioner’s arguments and evidence fail to show that Phillips renders the challenged claims obvious. 6. Conclusion Based on the foregoing, we determine that Petitioner has not established by a preponderance of the evidence that claims 1–4, 6, and 7 would have been anticipated by or obvious in view of Phillips.” slip op. at 33
- Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner
“2. Products and Nexus We first consider the issue of whether certain evidence relied upon by” slip op. at 20
Patent outcomesUS 11,998,854 mixedClaim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · Graham · NautilusPatents in suitUS 11,998,854 - Microsoft Corporation v. Sterling Computers CorporationAll claims unpatentablePTAB · Sep 14, 2026 · IPR2025-00270 · APJ Bach V Hoang · IPR · Final written decision
Claims 1–13, 15, 18, 20, 21, and 27 are unpatentable as obvious over Rohall and Schiavone, with Gomes added for claims 9 and 27.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“Our Institution Decision adopted Petitioner’s definition of a person of ordinary skill in the art. Inst. Dec. 9–10. In its Response, Patent Owner adopts Petitioner’s proposed level of ordinary skill. See PO Resp. 16 (“Patent Owner and its expert adopt the Board’s definition for purposes of this Response.”). Having considered the record, we continue to adopt Petitioner’s proposed level of skill, as articulated above. We are satisfied that Petitioner’s proposal comports with the level of skill necessary to understand and implement the teachings of the ’911 Patent. Accord Inst. Dec. 9–10.” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“We agree with Petitioner and determine that the construction of “relational references” does not require the use of a relational model and, further, includes pointers that point to related messages exchanged among users. The intrinsic evidence leads us to this construction. First, the relevant language of claim 1 recites “a message container containing relational references pointing to a plurality of sent submessages stored externally to the message container in the message database.” Ex. 1001, 15:56–59. A relational model is not recited in that language or anywhere else in the claim. See id. at 15:51–16:14. Therefore, the claim does not expressly require a relational model. Furthermore, the claim language supports Petitioner’s interpretation that “relational references” include pointers that point to related messages because the claim states that the “relational references” perform the task of “pointing to a plurality of sent submessages.” Pet. Reply 7. Accordingly, the language of the claim supports a construction that does not require a relational model and at least suggests relational references include pointers.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner
“No other claim terms need construction for our decision here and we decline unnecessarily doing so. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (noting that “we need only construe 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 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundUnpatentableDecided for petitioner
“We agree with Petitioner that the ordinarily skilled artisan would have been motivated to combine Rohall and Schiavone because Schiavone provides reasons to apply its techniques to email systems such as Rohall’s. Schiavone describes a need for “ensuring compliance of e-mail messages with applicable standards and/or laws and/or otherwise determining appropriateness of a message for an intended recipient,” especially because there is “a patchwork of local, federal and international laws.” Ex. 1006 ¶ 6. Schiavone also states that filtering emails, e.g., to remove spam, is beneficial. Id. ¶¶ 1–2. As Schiavone describes problems in email systems, which its rules-based email processing technique addresses, we determine that the ordinarily skilled artisan would have been motivated to combine Rohall and Schiavone. See KSR, 550 U.S. at 401 (a reference which teaches, suggests, or motivates its combination may “identify a reason that would have prompted a person of ordinary skill in the art to combine the elements”).” slip op. at 19
Patent outcomesUS 8,073,911 unpatentableClaim construction§ 103 obviousnesscites KSRPatents in suitUS 8,073,911 - Intel Corporation v. Advanced Cluster Systems, Inc.All claims unpatentablePTAB · Sep 1, 2026 · IPR2025-00914 · APJ Brian P Murphy · IPR · Final written decision
Claims 1–19 are unpatentable as obvious over Menon, Trefethen, RS6000, and POEref.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“In determining the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citing Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d 955, 962 (Fed. Cir. 1986)). “These factors are not exhaustive but are merely a guide to determining the level of ordinary skill in the art.” Daiichi Sankyo Co. v. Apotex, Inc., 501 F.3d 1254, 1256 (Fed. Cir. 2007). There is uncontested evidence in the record before us that reflects the knowledge and We adopt the Petition’s formulation of the level of ordinary skill in the art, which is consistent with the ’679 patent, the prior art of record, and the testimony of both experts.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“The Petition relies on the ordinary and customary meaning of the claim terms consistent with the Phillips standard. Pet. 12–13 (citing 37 C.F.R. § 42.100(b)). The Petition also addresses the construction of “peer-to-peer architecture” recited in independent claim 1 of the ’679 patent, a limitation we need not construe to resolve the parties’ dispute in this proceeding. Id. at 13; see, e.g., Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011) (“[C]laim terms need only be construed ‘to the extent necessary to resolve the controversy.’”) (quoting Vivid Techs., Owner relies on the ordinary and customary meaning of the claim terms consistent with the Phillips standard without further analysis. Resp. 7.” slip op. at 11
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundUnpatentable
“RS6000 with Menon, namely because RS6000 provides an overview of the IBM SP2 multiprocessor and Menon teaches the use of “IBM SP2, a modern high performance distributed memory multiprocessor” used in the MultiMATLAB system. Id. at 24–25 (citing Ex. 1003 ¶¶ 142–145; Ex. 1005, 5–6, 14; Ex. 1007, 1, 11). The Petition also explains why POEref pertains to the field of cluster computing in a parallel operating environment. Id. at 26 (citing Ex.1008, 11 (“PE Software is designed to run on an … RS/6000 network cluster”)); (further citing Ex. 1001, 1:14–15; Ex. 1003 ¶¶ 146–149). The Petition contends that a POSITA would have been motivated to combine the teachings of POEref with Menon “because Menon suggests the combination by teaching that MultiMATLAB uses ‘POE, IBM's Parallel Operating Environment.’” Id. at 26–27 (citing Ex. 1005, 6); (further citing Ex. 1003 ¶¶ 150–153; Ex. 1005, 14; Ex. 1008, 11, 46). We agree with Petitioner’s analysis. We find the Petition’s argument and evidence of a motivation to combine the asserted prior art references in the manner claimed to be compelling, persuasive, consistent with the disclosures in the references, which include internal cross-references to each other, and supported by the expert testimony of Dr. Bajaj.” slip op. at 19
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner
“skill, upon reading the reference, would be discouraged from following the path set out in the reference, or would be led in a direction divergent from the path that was taken by the applicant.” In re Gurley, 27 F.3d 551, 553 (Fed. Cir. 1994). Patent Owner argues that Menon teaches away from a combination with Trefethen because “Menon expressly states that Trefethen’s first-generation architecture is inadequate for the objectives that motivated the newer design.” Resp. 35–37. The evidence does not support Patent Owner’s position. First, Patent Owner’s teaching away argument is inconsistent with the strong evidence of a motivation to combine Menon and Trefethen discussed above. Second, Patent Owner’s teaching away argument is contrary to the evidence of record for the reasons given in Petitioner’s Reply. Reply 13–15 (e.g., “Menon explicitly cites Trefethen and explains that Menon builds on the teachings of Trefethen.”) (citing Pet. 22; Ex. 1003 ¶ 70; Ex. 1005, 1–3; Ex. 1163 ¶¶ 47–53). We are further persuaded by Dr. Bajaj’s reply testimony: the “MultiMATLAB teachings in Trefethen. In fact, Menon describes enhancing the system of Trefethen. For example, Menon describes a list of “goals” already achieved by MultiMATLAB and then states that the architecture has been “redesigned to achieve two further goals.” One of these two “further goals” is “extensibility,” which Menon achieves by its description of adding “MEX routines” to the system of Trefethen. Far from showing an “incompatibility” between Menon and Trefethen as the POR argues, Menon’s addition of the “MEX routines” to MultiMATLAB shows that such a modification was within the capabilities of a POSITA, because the authors of the Menon paper actually implemented the modification. Ex. 1163 ¶ 49 (citing Ex. 1005, 1–3). Dr. Bajaj’s testimony is unrebutted, credible, and supported by the record. We agree with Dr. Bajaj’s reasoning, which is based on direct quotes in Menon. We further agree with Dr. Bajaj’s conclusion that Menon does not teach away from the combination with Trefethen. Id. ¶¶ 50–52. Menon’s description of building on and enhancing the teachings of Trefethen—the earlier work of the same research group at Cornell—by adding MEX routines to achieve high-performance parallel computing and extensibility for MATLAB, demonstrates a classic motivation for a POSITA to combine the teachings of Menon and Trefethen. RS6000 and POEref are specifically referenced in Menon-Trefethen and add operational details of the parallel operating platform that teach a POSITA how to implement the MultiMATLAB system with a reasonable expectation of success. Such facts are inconsistent with Patent Owner’s teaching away and lack of motivation arguments.” slip op. at 24
Patent outcomesUS 12,021,679 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 12,021,679 - Intel Corporation v. Advanced Cluster Systems, Inc.All claims unpatentablePTAB · Aug 26, 2026 · IPR2025-00913 · APJ Brian P Murphy · IPR · Final written decision
Claims 1–30 are unpatentable: claims 1–25, 27–28, and 30 as obvious over Menon, Trefethen, RS6000, and POEref; claims 26 and 29 over those references plus MPIref.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citing Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d 955, 962 (Fed. Cir. 1986)). “These factors are not exhaustive but are merely a guide to determining the level of ordinary skill in the art.” Daiichi Sankyo Co. v. Apotex, Inc., 501 F.3d 1254, 1256 (Fed. Cir. 2007). There is uncontested evidence in the record before us that reflects the knowledge and experience of a POSITA. We adopt the Petition’s formulation of the level of ordinary skill in the art, which is consistent with the ’034 patent, the prior art of record, and the testimony of both experts.” slip op. at 11
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed petitioner constructionOther
“processor,” “multi-core” processor, or “singular ‘hardware processor’ that ‘comprises’ (or ‘with’) multiple ‘processing cores’” as Patent Owner contends. Resp. 11–12, 21; see also Ex. 1163 ¶ 22 (“The claim does not recite ‘single chip,’ ‘single package,’ ‘single die,’ or ‘single multi-core microprocessor.’”). Nor do the claims recite a plurality of processing cores “within” a single-chip package or read as “multi-core within a processor” as argued by Patent Owner. Resp. 12–14; Sur-Reply 2; see Reply 6 (citing Ex. 1163 ¶ 23 (“Thus, the phrase ‘with a plurality of processing cores’ identifies the required processing resources associated with the hardware processor; it does not import a packaging limitation.”)). The claims do recite a hardware processor “with” a plurality of processing cores; a critical distinction even Patent Owner reads as open-ended, i.e., as a hardware processor that “comprises” a plurality of processing cores. See Resp. 11 (“the claims require a singular ‘hardware processor’ that ‘comprises’ (or ‘with’) multiple ‘processing cores’”). Consequently, the claim language does not support Patent Owner’s proposed construction of “a . . . hardware processor with a plurality of processing cores” as a single multi-core processor. cores it contains” in reliance on a parsed description in the ’034 patent specification: The specification explains: “Each processor can contain one or more processor cores that are capable of single-threaded execution. Processor cores are generally independent microprocessors, but more than one can be included in a single-chip package.” Id. at 1212 (partially quoting Ex. 1001, 5:11–16); Sur-Reply 2. The quoted description does not support Patent Owner’s contention that the claimed “a . . . hardware processor with a plurality of processing cores” must be limited to a “single multi-core processor” that “locates multiple cores within a ‘single-chip package,’” i.e. limited to a single multi-core microprocessor such as “a Core 2 Duo is one processor package with two cores.” Resp. 12– 13, 21 (citing Ex. 1001, 7:15–25). The description quoted above from column 5, moreover, describes a “processor” that “can contain one or more processor cores” each of which can be an independent microprocessor. Reply 2–3 (citing Ex. 1001, 5:11–16; Ex. 1163 ¶¶ 10–14). As Petitioner emphasizes, the specification distinguishes a “processor” from a “microprocessor” and describes a “processor” that “can be one or more general purpose single-core or multi-core microprocessors,” rather than limiting a “processor” to a single multi-core microprocessor. Reply 3–5 (citing Ex. 1001, 7:14–36, Fig. 1; Ex. 1163 ¶¶ 15–18).” slip op. at 13
- Obviousness (§103) › Analogous artAnalogous artDecided for petitioner
“art because they pertain to the same “field of cluster computing” as the ’034 patent and “are reasonably pertinent to the problem of the ’034 patent, namely, executing a single program on multiple nodes.” Pet. 22 (citing Ex. 1001, 1:14–15; Ex. 1003, ¶¶ 65–69; Ex. 1005, 2; Ex. 1006, Abstract). The Petition emphasizes that Menon expressly cites and builds on the MultiMATLAB system taught by Trefethen. Id. (citing Ex. 1003 ¶ 71; Ex. 1005, 1–2). The Petition contends that: combination of prior art elements according to known methods (executing MATLAB code on a multiprocessor system) to yield the predictable result discussed in both papers: the MultiMATLAB system executing MATLAB in parallel to perform mathematical calculations. Id. at 22–23 (citing Ex. 1003 ¶ 70; Ex. 1005, Abstract; Ex. 1006, 2–7). The Petition further contends that a POSITA would have found it predictable to combine Trefethen with Menon with a reasonable expectation of success “because researchers had a strong desire to parallelize MATLAB.” Id. at 23–24 (citing Ex. 1003 ¶ 73; Ex. 1005, 2; Ex. 1006, 11–12.)” slip op. at 27
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundDecided for petitioner
“A POSITA would have had an especially strong reason to read these references together because they address the same project, the same MATLAB-based parallel-computing problem, and the same MultiMATLAB command environment. Menon expressly identifies Trefethen’s MultiMATLAB work and then describes a redesigned architecture that preserves the same user-level objective––parallel MATLAB computations—while improving implementation details and extensibility. A POSITA therefore would not view the references as mutually exclusive alternatives. Rather, a POSITA would understand Trefethen as teaching specific MultiMATLAB commands and examples, including Eval, Send, Recv, and the architecture was implemented and improved in a later version. Ex. 1163 ¶¶ 71–72 (emphases added). We find the above reasoning persuasive and adopt it as our own. Petitioner and Dr. Bajaj demonstrate a sound technical motivation for a POSITA—someone having a bachelor’s degree in computer science, computer engineering, or electrical engineering and two years of experience working in the field of cluster computing or parallel processing—to combine Menon and Trefethen: to improve MATLAB’s operational performance and extensibility in a parallel operating environment. Menon builds on Trefethen to improve and extend the parallel processing capabilities of MultiMATLAB: “This system will enable users to access high-performance parallel routines from within the MATLAB environment, to extend the environment with new parallel routines, and to use these routines to develop parallel applications with the MATLAB language.” Ex. 1005 Abstract. Menon is intended to be read in conjunction with Trefethen, as would be expected from two references generated by the same research group at the same university addressed to the same technical subject matter about a year apart. Ex. 1005, 1; Ex. 1006, Ex. 1086 ¶¶ 65, 101, 102. The very first citation in Menon is to Trefethen. Ex. 1005, 2, 16.” slip op. at 30
Patent outcomesUS 11,570,034 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 11,570,034 - X Corp. v. Sterling Computers CorporationAll claims unpatentablePTAB · Jun 9, 2026 · IPR2025-00299 · APJ Bach V Hoang · IPR · Final written decision
Claims 1–22 are unpatentable as obvious over the stated Dumais-based and Kircher/Krug grounds; Patent Owner’s and Petitioner’s motions to exclude are dismissed as moot.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“Our Institution Decision adopted Petitioner’s definition of a person of ordinary skill in the art. Inst. Dec. 8–9. In its response, Patent Owner adopts Petitioner’s proposed level of ordinary skill. See PO Resp. 14–15 (“Patent Owner and its expert adopt the Board’s definition for purposes of this Response”). Having considered the record, we continue to adopt Petitioner’s proposed level of skill, as articulated above. We are satisfied that Petitioner’s proposal comports with the level of skill necessary to understand and implement the teachings of the ’217 Patent. Accord Inst. Dec. 8–9.” slip op. at 9
- Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)No construction neededNot reached
“1. “computer program modules” The parties dispute whether four “computer program modules comprising” (1) “a monitoring module,” (2) “a first relevance measurement module,” (3) “a second relevance measurement module,” and (4) “a relevance analysis module” (collectively, “module limitations”) invoke 35 U.S.C. § 112 ¶ 6 and should be treated as means-plus-function limitations. See Pet. 8–18; PO Resp. 15–18; Pet. Reply 3–5; PO Sur-reply 4–7. However, the parties do not argue that the construction of these terms affects the analysis of Petitioner’s challenges. See PO Resp.; Pet. Reply; PO Sur-reply. Moreover, our analysis does not rely on any particular construction of these terms and, so, we need not resolve this dispute.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“2. “one or more measures derived from the group consistent of” Petitioner asserts limitations 1[g] and 1[g][i]–1[g][iv] recite an open Markush group listing alternatively useable members. Pet. 20–21 (citing Gillette Co. v. Energizer Holdings, Inc., 405 F.3d 1367, 1372 (Fed. Cir. 2005); Abbot Lab’ys v. Baxter Pharm. Prod., Inc., 334 F.3d 1274, 1281 (Fed. Cir. 2003) (explaining that the listing of specified alternatives within a claim is referred to as a Markush group or Markush grouping)); See Ex. 1001, 47:47–58. Patent Owner does not dispute Petitioner’s construction. See PO Resp; PO Sur-reply. As these terms are not in controversy, we need not opine on this construction.” slip op. at 10
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITANo construction neededNot reached
“Petitioner’s and Patent Owner’s respective constructions overlap in their requirement that “cognate” users share similar past user actions and assessments or are defined by similar direct input by the user. See Pet. 18; PO Resp. 20–21; PO Sur-reply 10. Petitioner argues that Patent Owner’s construction “exclude[s] ‘groups’ from the claims” and further limits the scope of to users who share actions (Pet. Reply 8–9), but Patent Owner states that its proposed construction does not so limit the claims (PO Sur-reply 10). As such, there is no disagreement that “cognate” users share similar past user actions and assessments or are defined by similar direct input by the user. As there is no controversy, we need not, and do not, construe the meaning of “cognate.” However, Patent Owner’s requirement that “at least one other of the plurality of users” is specifically cognate to “the user” who was sent the content is plainly recited in the claim language itself. The claim recites a “relevance score of a piece of electronic content sent from a sender to a user” in the preamble and similarly again in limitation 1[g]. See Ex. 1001, 47:25–28 (emphasis added), 45:62–64. The limitation in question directly references the claimed “user” when reciting the cognate relationship: “identify at least one other of the plurality of users . . . that is cognate to the user.” Ex. 1001, 47:43–45 (emphasis added). As such, the claim language plainly supports Patent Owner’s requirement and Petitioner does not contest that requirement. See Pet. Reply 8. least one other of the plurality of users . . . that is cognate to the user” as requiring that the identified other user is cognate specifically to the user whose relevance score is being determined.” slip op. at 12
Patent outcomesUS 7,716,217 unpatentableClaim construction§ 103 obviousnesscites KSRPatents in suitUS 7,716,217 - Qualcomm Incorporated v. Cobblestone Wireless, LLCSome claims unpatentablePTAB · Mar 5, 2026 · IPR2024-01336 · APJ Russell E Cass · IPR · Final written decision
Claims 1–4, 6–9, 24, and 25 are unpatentable; claims 10, 13, 14, 17, and 21–23 were not shown unpatentable, principally due to missing limitations or insufficient motivation to combine.
RulingsFinal written decision- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“information” should be given its plain and ordinary meaning as “data,” and that Patent Owner’s narrower construction of “first information” and “second information” lacks sufficient support in the intrinsic record. We agree with Petitioner that the ’802 patent Specification defines “information” as data when it uses the phrase “information (i.e., data).” See Ex. 1001, 5:60–62 (“Information (i.e., data) to be transmitted may be received in a baseband digital system 250, such as a wireless digital baseband processor.” (emphasis added)), 11:30–32 (“In this example, the signals 911 and 912 carry the same information (data).” (emphasis added)). As the Federal Circuit has explained, a “specification’s use of ‘i.e.’ signals an intent to define the word to which it refers.” Edwards Lifesciences LLC v. Cook Inc., 582 F.3d 1322, 1334 (Fed. Cir. 2009). slip op. at 13
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableNot shown unpatentableMixed
“argument based on Fernandez alone, we find that Petitioner has not provided a sufficient evidentiary basis to support a motivation to remove the amplification from each of Fernandez’s signal generators 10A-10E and add a single power amplifier instead. See Pet. 76–77 Ex. 1003 ¶ 235. Petitioner’s only rationale for this modification to Fernandez is that “[a] single amplifier has several advantages compared to multiple amplifiers, including lower complexity, a single (vs. multiple) potential point of failure, and lower cost,” and that one of ordinary skill “would have found a single amplifier to be a simple matter of design preference.” Pet. 76–77. Dr. Almeroth simply repeats these cursory allegations without providing any further explanation or evidentiary support. Ex. 1003 ¶ 235. Moreover, Dr. Cooklev provides credible testimony that replacing Fernandez’s amplification in signal generators 10A–10E with a single amplifier would not necessarily have the advantages that Petitioner suggests. See Ex. 2013 ¶¶ 99, 104–105. For example, Dr. Cooklev testifies that a single amplifier would need to have a wider bandwidth than the multiple amplifiers used in Fernandez, which could cause potential stability issues. Id. ¶ 105. According to Dr. Cooklev, this wider bandwidth would require more circuit elements, and thus would not provide the reduction in space usage and power consumption that Petitioner asserts. Id. According to Dr. Cooklev, Montojo also points to several “substantial, and potentially impractical, drawbacks” of using a single amplifier for multiple signal generators, including power constraints imposed by spectral emission requirements and on-board battery capacity. Id. ¶ 104 (citing Ex. 1006 ¶¶ 7– 8). In light of this testimony, which we find credible, Petitioner has failed to provide sufficient explanation or evidence to support its assertion that one of ordinary skill would have found it obvious to replace the multiple amplifiers in Fernandez’s signal generators with a single amplifier.” slip op. at 65
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
“argument based on Fernandez alone, we find that Petitioner has not provided a sufficient evidentiary basis to support a motivation to remove the amplification from each of Fernandez’s signal generators 10A-10E and add a single power amplifier instead. See Pet. 76–77 Ex. 1003 ¶ 235. Petitioner’s only rationale for this modification to Fernandez is that “[a] single amplifier has several advantages compared to multiple amplifiers, including lower complexity, a single (vs. multiple) potential point of failure, and lower cost,” and that one of ordinary skill “would have found a single amplifier to be a simple matter of design preference.” Pet. 76–77. Dr. Almeroth simply repeats these cursory allegations without providing any further explanation or evidentiary support. Ex. 1003 ¶ 235. Moreover, Dr. Cooklev provides credible testimony that replacing Fernandez’s amplification in signal generators 10A–10E with a single amplifier would not necessarily have the advantages that Petitioner suggests. See Ex. 2013 ¶¶ 99, 104–105. For example, Dr. Cooklev testifies that a single amplifier would need to have a wider bandwidth than the multiple amplifiers used in Fernandez, which could cause potential stability issues. Id. ¶ 105. According to Dr. Cooklev, this wider bandwidth would require more circuit elements, and thus would not provide the reduction in space usage and power consumption that Petitioner asserts. Id. According to Dr. Cooklev, Montojo also points to several “substantial, and potentially impractical, drawbacks” of using a single amplifier for multiple signal generators, including power constraints imposed by spectral emission requirements and on-board battery capacity. Id. ¶ 104 (citing Ex. 1006 ¶¶ 7– 8). In light of this testimony, which we find credible, Petitioner has failed to provide sufficient explanation or evidence to support its assertion that one of ordinary skill would have found it obvious to replace the multiple amplifiers in Fernandez’s signal generators with a single amplifier.” slip op. at 65
- Expert testimonyPatent owner expert creditedPetitioner expert discountedOther
“We find credible and agree with Dr. Cooklev’s testimony that the predistortion signals from tables 17-1 and 17-2 “are cancelled out by Suzuki’s amplifier” 28. Ex. 2013 ¶ 50. Dr. Cooklev supports his opinion by referring to paragraph 1 of Suzuki, which states that Suzuki’s invention is directed to “a multi-band lookup table type predistorter” (such as the one implemented using lookup tables 17-1 and 17-2 in Figure 6) that “compensates for a distortion of a power amplifier.” Ex. 2013 ¶ 54; Ex. 1004 ¶ 1. Dr. Cooklev’s opinion is also supported by paragraph 3 of Suzuki, which explains that a conventional digital predistorter uses a lookup table “for linearizing non-linear characteristics of an amplifier.” Ex. 1004 ¶ 3; Ex. 2013 ¶ 54. Dr. Cooklev further supports his opinion by relying on Suzuki’s disclosure in paragraph 46 that power amplifier 28 is “subject to distortion compensation” by the predistorter, and that distortion components in the signal output by the amplifier are canceled by “distortion compensation data [that] are read out from the lookup tables 17-1 and 17-2 and provided to the adders 13-1 and 13-2, respectively.” Ex. 1004 ¶ 46; Ex. 2013 ¶ 54. And, Dr. Cooklev’s opinion is supported by Suzuki’s disclosure in paragraph 47 that the distortion compensation added by adders 13-1 and 13-2 add the distortion compensation data from lookup tables 17-1 and 17-2 “to perform distortion compensation (addition of predistortion)” to “signals to be transmitted.” Ex. 1004 ¶ 47; Ex. 2013 ¶ 54. Petitioner agrees that the distortion compensation data from lookup tables 17-1 and 17-2 “are added to the respective frequency band from” input signal ST “in order to predistort the output signal, which is then transmitted,” and does not dispute that the distortion compensation data from lookup tables 17-1 and 17-2 is ultimately cancelled out by the distortion created by amplifier 28. Pet. Reply 8. In light of the above evidence, we agree with Patent Owner that Suzuki’s distortion components from lookup tables 17-1 and 17-2 in Figure 6 (which Petitioner relies on for the first and second digital signals in limitations 10a and 10b) are cancelled out by the distortion created by power amplifier 28 before the signal is ultimately transmitted. We agree with Petitioner that these first and second digital signals include data in the form of distortion compensation data. However, because these signals are cancelled by the distortion from amplifier 28 before transmission, the data from these signals is never transmitted. Thus, the first and second digital signals identified by Petitioner (the distortion compensation data from lookup tables 17-1 and 17-2) do not comprise data “to be transmitted,” as limitations 10a and 10b require.” slip op. at 35
Patent outcomesUS 7,924,802 mixedClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 7,924,802 - Penumbra, Inc. v. Rapidpulse, Inc.No claims unpatentablePTAB · 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 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 11,406,402 - Google LLC v. DH International Ltd.All claims unpatentablePTAB · Feb 10, 2026 · IPR2024-01322 · APJ Brian P Murphy · IPR · Final written decision
Claims 1–20 are unpatentable as obvious over Mooney; the Board also found Mooney combined with Lee renders the disputed limitations obvious.
RulingsFinal written decision- Skill levelSkill level board ownDecided for petitioner
“A person of ordinary skill in the art (“POSITA”) at the time of the alleged invention of the ’294 patent would have had at least a bachelor’s degree in electrical engineering, or a related field, and at least two years of experience in design, development, and/or testing of network-enabled consumer devices, and familiarity with payment cards, or the equivalent, with additional education substituting for experience and vice versa. Pet. 2 (citing Lipoff Decl. Ex. 1003 ¶ 57). “Patent Owner agrees with the Petitioner on the level of ordinary skill in the art.” Resp. 4. Patent Owner adds that a POSITA would have had “at least three years of relevant industry or research experience in wireless communication between devices.” Id. (citing Ex. 2001 ¶¶ 26–29). Mr. Zaheer testifies that a POSITA “would” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner
“The claim language and specification define and describe an “activation cue” in functional terms: a data communication from an external source is received by the cell phone and recognized as an activation cue if it causes the switching element to be assigned its first (activated) state. Ex. 1001, 9:28–31, 9:42–46, 10:14–16, 13:55–60, 14:53–59, 15:4–6, 19:20–26. Patent Owner agrees that “upon an activation cue being received by portable electronic device 10, switching element 44b switches to its activated state.” Resp. 19 (quoting Ex. 1001, 10:14–16). The activation cue may be a predetermined bit sequence, a predetermined contactless data transmission, continuously emitted, pulsed, or punctual, but these are unclaimed non-limiting embodiments of the preferred form of data transmission. Id. at 9:25–26 (“for example a predetermined bit sequence”), 11:20–22 (“One example . . . emit an activation cue in the form of a predetermined contactless data transmission”), 14:65–15:3 (continuously emitted, pulsed or punctual cue). We will not read such preferred embodiments from the specification into claim language that is not so limited. See SuperGuide Corp. v. DirecTV Enterprises, Inc., 358 F.3d 870, 875 (Fed. Cir. 2004) (care should be taken “not to import into a claim limitations that are not part of the claim”); see also In re Van Geuns, 988 F.2d 1181, 1184 (Fed. Cir. 1993) (“limitations are not to be read into the claims from the specification”); see also IQRIS Techns. LLC v. Point Blank Enterprises, Inc., 2025 WL 727717, *4 (Fed. Cir. 2025) (“It is the claims, not the preferred embodiments, that” slip op. at 15
- Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) does not applyDecided for petitioner
“operatively linked to said electronic circuit” under 35 U.S.C. Section 112, sixth paragraph or not, the result is the same. We note there is no presumption of applying means-plus-function analysis to the switching element, because the limitation does not use the words “means for” that would mandate such claim construction treatment, and “switching” may invoke structure as well as function. See Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1349–1350 (Fed. Cir. 2015) (en banc) (holding that “use of the word ‘means’ creates a presumption that § 112, ¶ 6 applies”). Regardless, we look to the meaning of the claim phrase at issue in view of the specification. We determine that the ’294 patent provides a clear, concise meaning for the switching element upon which both parties rely for construction. Patent Owner’s express agreement with Petitioner, that the claimed switching element is described in the ’294 patent as “any type of device allowing data to be conveyed according to alternate data conveyance operations in response to an activation cue being received by transceiver 18 or not,’” is particularly telling because it is not consistent with Patent Owner’s argument that the switching element means “switching of the data.” Resp. 7, 31 (citing Ex. 1001, 9:28–318). The claim language does not recite, and the specification does not describe, the switching element as a device that switches the data. Therefore, we determine the claimed “data conveyance switching element” means any type of switching device that allows data to be 8 We presume Patent Owner’s citation to “Exh. 2001, 9:28-31” on page 7 was intended to be a citation to the ’294 patent (Ex. 1001), as cited on page 31. whether or not an “activation cue” is received by the cell phone “cue receiver.”” slip op. at 21
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Plain and ordinary meaningDecided for petitioner
“[external] data exchange device” as a device with a data transceiver coupled to a circuit that carries out the function of exchanging data. Pet. 7–8 (citing Ex. 1001, 2:14–17, 4:7–14, 9:3–6; Ex. 1003 ¶¶ 67–68). As above, whether we construe the “[external] data exchange device” under 35 U.S.C. Section 112, sixth paragraph or not, the result is the same. Patent Owner, quoting the description of a data exchange device in the ’294 patent, contends that a “[external] data exchange device” “can be any sort of data exchange device comprising an electronic circuit (not shown) therein and a data transceiver 9a.” Resp. 8 (quoting Ex. 1001, 9:4–6). Patent Owner also responds to the Petition by clarifying that “[a]n external data exchange device is not a transceiver but a device with a transceiver.” Id. (citing Ex. 2001 ¶ 48). Petitioner argues in reply that Patent Owner does not contest Petitioner’s mappings of Mooney’s “cordless telephone base unit” or “cellular network infrastructure” to the claimed data exchange devices, such that no construction is necessary to resolve the dispute. Reply 5 (citing Resp. 16–37; Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011)). Limitations [1.c] and [1.d] recite “a first [second] data transceiver operatively linked to said electronic circuit [in the cell phone],” both of which are defined functionally as “for exchanging data between said electronic circuit [in the cell phone] and a first [second] external data exchange device over a first [second] communication link.” Nothing in the the other independent claims, further limits the form or function of the “[external] data exchange device,” although a device external to the cell phone may invoke additional structure. We determine the plain meaning of “[external] data exchange device” as claimed and described in the ’294 patent governs: any [external] device that comprises an electronic circuit and data transceiver for exchanging data with the electronic circuit in the cell phone over a communication link. slip op. at 22
Patent outcomesUS 9,022,294 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,022,294 - Solaris Oilfield Site Services Operating, LLC / Solaris Oilfield Site Services Personnel, LLC v. Masaba, Inc.All claims unpatentablePTAB · Jan 26, 2026 · IPR2024-01179 · APJ Carl M Defranco · IPR · Final written decision
Claims 1–25 are unpatentable under § 103 over the asserted combinations of Waldner, Dynatek, and additional references; the Board cancelled all challenged claims.
RulingsFinal written decision- Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner
“Also, to the extent Masaba relies on extrinsic expert testimony, we note that Masaba’s expert cites absolutely no support for his understanding of the claims, much less explains why we should adopt his understanding over the plain and ordinary meaning of “conveying aggregate” and “moving aggregate.” See Ex. 2004 ¶ 34. Absent supporting citations, such extrinsic testimony is entitled to little, if any, weight. As such, we reject the notion that Waldner’s discharge chute member 242 is not a conveyor “for conveying aggregate” or “for moving aggregate,” as required by claim elements 1[h] and 1[i].” slip op. at 21
- Skill levelSkill level petitioner adoptedDecided for petitioner
“We disagree that Dr. Durham does not possess the necessary level of skill in the art to qualify as an expert in this case. Looking at the specification of the ’689 patent and the prior art of record, we think Masaba sets the bar too high. We acknowledge that one of ordinary skill in the art should have some education and/or experience in the mechanical art of conveying aggregate materials, but we do not think opining on the ’689 patent and asserted prior art necessarily requires that person to have the amount of education and experience that Masaba advocates. The ’689 patent relates generally to an “aggregate transferring system for receiving aggregate from a vehicle and elevating the aggregate to a higher vertical level for deposit into, for example, a silo.” Ex. 1001, 1:15– 18. And, as described in the ’689 patent and discussed later, the transferring system is an assembly of known types of conveyors, such as a belly-dump truck conveyor, a bucket elevator, and an articulated belt conveyor, for transferring the aggregate horizontally and vertically from a belly-dump truck to the discharge point, such as a silo. Without doubt, Dr. Durham has enough education and experience to reliably opine on the combination of known parts.” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Plain and ordinary meaningNo construction needed
“We reject this argument for several reasons. First, nowhere does the plain language of the claims specify how the aggregate is conveyed or moved from the conveyor extension assembly’s inlet to its outlet, be it passively by means of gravity or actively by means of a conveyor belt. Instead, the claims simply use those verbs according to their plain and ordinary meaning, which is “to transfer or deliver” or “to cause to go or pass” from one place to another. See Ex. 3001, 253 (defining “convey”), 760 (defining “move”).10 Second, the specification of the ’689 patent similarly uses these terms in a plain and ordinary sense, without ever attributing to them some sort of special meaning. See, e.g., Ex. 1001, 4:9–12 (“The apparatus 10 is suitable for performing the transfer of aggregate from 10 We reference the original pagination of the dictionary in which these definitions appear. one location to another, such as, for example, from a vehicle carrying the aggregate to a silo 1 for storing the aggregate.”). The ’689 patent specification also makes clear that active conveyance of the aggregate is an option and not a requirement of the claimed invention, stating that the conveyor extension assembly “may further include a conveyor belt 150.” Ex. 1001, 10:60–66 (emphasis added). Limiting claim elements 1[h] and 1[i] to a device “for actively conveying” or “for actively moving aggregate” would improperly import limitations from the specification into the claims. Thus, based on the intrinsic evidence, we determine that claim elements 1h and 1k are properly construed to encompass passive and/or active movement of the aggregate via the conveyor extension assembly.” slip op. at 20
- Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)Not reached
“Owner asserts” that two claim terms—“unloader structure” and “trailer structure”—should be construed as means-plus-function limitations under 35 U.S.C. § 112(f), Solaris submits an express construction detailing the corresponding structure in the specification for performing the recited function of the claimed unloader and trailer structures. See id. at 24–25. Only in disputing Solaris’s Ground 3 does Masaba advocate that the claim term “trailer structure” should be construed under § 112(f), and then only in conjunction with dependent claims 3 and 21. See PO Resp. 58. As such, we address Masaba’s proposed construction in our analysis of Ground 3. We now turn to Solaris’s grounds of unpatentability.” slip op. at 12
Patent outcomesUS 11,780,689 unpatentableClaim construction§ 103 obviousnesscites KSRPatents in suitUS 11,780,689 - Reed Semiconductor Corp. v. Monolithic Power Systems, Inc.All claims unpatentablePTAB · Jan 22, 2026 · IPR2024-01158 · APJ Ken B Barrett · IPR · Final written decision
Claims 1–5, 7–15, 17, and 18 are unpatentable: claims 1–4, 9–14, 17, and 18 as anticipated by Tateishi, and claims 5, 7, 8, and 15 as obvious over Tateishi.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“We discern no material difference between the parties’ definitions. Petitioner’s definition is consistent with the level of ordinary skill reflected in the prior art references of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (recognizing that the prior art itself may reflect an appropriate level of skill in the art). For purposes of this decision, we apply Petitioner’s definition of the person of ordinary skill in the art. We note, however, that were we to adopt Patent Owner’s assessment, the outcome of this Decision would be the same.” slip op. at 13
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“After considering the parties’ arguments and evidence, we determine that Patent Owner has not offered persuasive evidence that a person of ordinary skill in the art reading the claims in light of the Specification would understand the plain and ordinary meaning of “control signal” to be as narrow as Patent Owner proposes. We do not construe the claims such that the “control signal” must be the exclusively controlling factor of a component, as Patent Owner urges. Petitioner’s position, on the other hand, is consistent with the evidence of record. We construe “control signal” as having its plain and ordinary meaning, namely a signal configured to control a circuit component. D. The Asserted Anticipation of Claims 1–4, 9–14, 17, and 18 by Tateishi” slip op. at 24
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“We determine that Petitioner has demonstrated by a preponderance of the evidence that Tateishi discloses the “control signal” recited in limitations 1B2 and 1D of independent claim 1.” slip op. at 37
- BurdenNot shown unpatentable
“based on the Tateishi application publication (Ex. 1007), that the Tateishi Patent (Ex. 1005) also anticipates claims 1–4, 9–14, 17, and 18. See Pet. 23–24 (“The Tateishi Patent is also prior art under (pre-AIA) §102(e)”; identifying Ground 1 as anticipation “under §102 by Tateishi and/or the Tateishi Patent”). However, we are unable to locate in the Petition or Petitioner’s Reply a discussion of or citation to the Tateishi Patent other than under the Petitioner’s heading “Identification of Challenge and Relief Requested” on pages 23 and 24 of the Petition. Cf. id. at i–x (Table of Contents identifying a section of the Petition discussing the Tateishi (Application) anticipation ground but not a section discussing a Tateishi Patent anticipation ground). Although the issued patent may be substantively identical to the published application, Petitioner does not assert that, and we decline to compare the documents to determine whether that is the case. In light of Petitioner’s silence on the alternative ground, Petitioner has not demonstrated by a preponderance of the evidence that the Tateishi Patent anticipates 1–4, 9–14, 17, and 18.” slip op. at 47
Patent outcomesUS 9,041,377 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,041,377
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.