- Digital Global Systems, Inc. v. Deepsig Inc.Institution deniedPTAB · Mar 27, 2025 · IPR2025-00049 · APJ Robert J Weinschenk · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood of proving any challenged claim obvious over the asserted combinations.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“An inter partes review may not be instituted unless “the information presented in the petition . . . and any response . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). Here, Petitioner does not demonstrate a reasonable likelihood of prevailing in showing that at least one of the challenged claims is unpatentable. Thus, the Petition is denied, and no trial is instituted.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“had “a bachelor’s degree in electrical engineering, computer engineering, or an equivalent degree and at least two years of experience working with . . . radio communication systems and machine learning.” Pet. 3 (citing Ex. 1003 ¶¶ 33–34). Petitioner’s description of the level of ordinary skill in the art is supported by the testimony of Petitioner’s declarant, Dr. Zhi Ding. Ex. 1003 ¶¶ 33–34. Patent Owner does not dispute Petitioner’s description at this stage of the proceeding. We adopt Petitioner’s description for the purposes of this Decision.” slip op. at 4
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner
“B. Claim Construction In an inter partes review proceeding, a patent claim is construed using the same standard used in a civil action under 35 U.S.C. § 282(b), including construing the claim in accordance with the ordinary and customary meaning of the claim as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent. 37 C.F.R. § 42.100(b). Neither party proposes an express construction for any claim terms. Pet. 13; Prelim. Resp. 9–10. We determine that no claim terms require express construction for purposes of this Decision.” slip op. at 5
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“On this record, we agree with Patent Owner. Claim 1 recites “generating a pre-distorted radio signal by processing the transmit radio signal using a nonlinear pre-distortion machine learning model.” Ex. 1001, 14:19–24. This portion of claim 1 requires processing a transmit signal using a machine learning model. Id. Claim 1 also recites “updating the model parameters based on a distance metric computed between the transmit radio signal and a received signal that is obtained from the one or more radio receivers.” Id. at 14:30–35. This portion of claim 1 requires updating model parameters based on a distance metric computed using a received signal obtained from a receiver. Id. Thus, together, these portions of claim 1 require updating parameters for a transmit model based on a distance metric computed using a signal obtained from a receiver.” slip op. at 7
Claim construction§ 103 obviousnessPatents in suitUS 10,581,469 - PTAB · Mar 26, 2025 · IPR2024-01345 · APJ Andrew L Nalven · IPR · Institution
The Board instituted IPR of claims 1–12 on all asserted grounds after finding a reasonable likelihood that claims 1, 2, 4–6, 8–10, and 12 are obvious over Lee and claims 3, 7, and 11 over …
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Pursuant to 35 U.S.C. § 314(a), an inter partes review may not be instituted “unless . . . there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” For the reasons provided below, we determine that Petitioner has demonstrated a reasonable likelihood that at least one claim of the ’968 patent is unpatentable, and we institute an inter partes review. 37 C.F.R. § 42.108(a).” slip op. at 2
- Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) does not applyDecided for petitioner
“We agree that the lack of the word “means” recited in claims 1 and 9 creates a rebuttable presumption that § 112(6) does not apply. Williamson, 792 F.3d at 1348. “When a claim term lacks the word ‘means,’ the presumption can be overcome and § 112[(6)] will apply if the challenger demonstrates that the claim term fails to ‘recite[] sufficiently definite structure’ or else recites ‘function without reciting sufficient structure for performing that function.’” Id. at 1349 (citation omitted). “One way to demonstrate that a claim limitation fails to recite sufficiently definite structure is to show that, although not employing the word ‘means,’ the claim limitation uses a similar ‘nonce word that can operate as a substitute for ‘means’ in the context of § 112 [(f)].’” MTD Products, Inc. v. Iancu, 933 F.3d 1336, 1341 (Fed. Cir. 2019) (quoting Williamson, 792 F.3d at 1350). Patent Owner argues that “[a] general-purpose computer, i.e., a ‘controller,’ fails to recite sufficiently definite structure for performing the DSC’s claimed function.” PO Sur-Reply 3–4. Petitioner responds that the term “controller” has previously been found to not invoke § 112(6) because it is understood as having a definite meaning of structure. Pet. Reply 1–2 (citations omitted). Petitioner is correct that the Board and district courts have in some cases found a “controller” to recite sufficient structure. On this preliminary record, we are not persuaded that the evidence is sufficient to establish that the term “designation software controller” fails to recite sufficiently definite structure and overcome the presumption that § 112(6) does not apply. At this juncture, neither party has provided sufficient evidence as to how the claimed “designation software controller” would reasonably be understood by persons of ordinary skill in the art. See Williamson, 792 F.3d at 1349 (“The standard is whether the words of the claim are understood by persons of ordinary skill in the art to have a sufficiently definite meaning as the name for structure.”). In addition, regardless of whether “designation software controller” alone connotes structure, the claim language that follows the term “designation software controller” appears to provide structure. Specifically, the claim language appears to include a step-by-step procedure, namely 1) keep the information in memory in response to a termination of viewing; and 2) designate the succeeding part of the digital moving image contents when the viewing starts again. See Ergo Licensing, LLC v. CareFusion 303, Inc., 673 F.3d 1361, 1365 (Fed. Cir. 2012) (“Even described ‘in prose,’ an algorithm is still ‘a step-by-step procedure for accomplishing a given result.’”); Sage Prods., Inc. v. Devon Indus., Inc., 126 F.3d 1420, 1427–28 (Fed. Cir. 1997) (“where a claim recites a function, but then goes on to elaborate sufficient structure, material, or acts within the claim itself to perform entirely the recited function, the claim is not in means-plus-function format”). Accordingly, for purposes of this decision, we do not construe the claimed “designation software controller” as a means-plus-function limitation. No further construction of this term is necessary for purposes of this decision. During trial, the parties may provide further briefing on this issue.” slip op. at 10
- Skill levelSkill level petitioner adoptedDecided for petitioner
“(“POSITA”) would have had “a Bachelors’ degree in electrical or computer engineering or a comparable field of study, plus approximately two to three years of professional experience with television and digital display systems, distributed multimedia communications, and networked computer systems.” Pet. 3–4 (citing Ex. 1002 ¶ 48). Patent Owner does not challenge Petitioner’s proffered definition as to the level of ordinary skill in the art. Prelim. Resp. 5. For purposes of this Decision, we adopt Petitioner’s assessment, which is consistent with the level of skill reflected in the specification and asserted prior art.” slip op. at 14
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Instituted
“viii. Conclusion as to Claim 1 Based on the current record, we are persuaded by Petitioner’s showing for limitations 1[a] through 1[e]. Accordingly, we determine that Petitioner has demonstrated a reasonable likelihood of prevailing on its assertion that claim 1 would have been obvious over Lee.” slip op. at 22
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,948,968 - Samsung Electronics Co., Ltd. / Samsung Electronics America, Inc. v. Harbor Island Dynamic, LLCInstitutedPTAB · Mar 24, 2025 · IPR2024-01405 · APJ Arthur M Peslak · IPR · Institution
The Board instituted review of claims 1–20 on all petitioned grounds, finding a reasonable likelihood of unpatentability and declining discretionary denial under Fintiv.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“determine whether to institute an inter partes review under 35 U.S.C. § 314(a). See 37 C.F.R § 42.4(a) (2023) (“The Board institutes the trial on behalf of the Director.”). Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the Petition shows “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Considering the Petition, the Preliminary Response, as well as all supporting evidence, we conclude that the information presented in the Petition establishes a reasonable likelihood that Petitioner would prevail in its challenge of at least one claim of the ’826 patent as unpatentable. Pursuant to 35 U.S.C. § 314, we hereby institute an inter partes review of all challenged claims of the ’826 patent on all grounds stated in the Petition.” slip op. at 2
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Instituted
“To establish anticipation under 35 U.S.C. § 102, each and every element in a claim, arranged as recited in the claim, must be found in a single prior art reference. Net MoneyConn, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1369 (Fed. Cir. 2008); Karsten Mfg. Corp. v. Cleveland Golf Co., 242 F.3d 1376, 1383 (Fed. Cir. 2001). Each element of the challenged claim must be found, either expressly or inherently, in the single prior art reference. Verdegaal Bros., Inc. v. Union Oil Co. of Cal., 814 F.2d 628, 631 (Fed. Cir. 1987). When evaluating a prior art reference in the context of anticipation, the reference must be “considered together with the knowledge” slip op. at 7
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Whether an ordinarily skilled artisan would have been motivated to modify the teachings of a reference is a question of fact.” WBIP, LLC v. Kohler Co., 829 F.3d 1317, 1327 (Fed. Cir. 2016) (citations omitted). “[W]here a party argues a skilled artisan would have been motivated to combine references, it must show the artisan ‘would have had a reasonable expectation of success from doing so.’” Arctic Cat Inc. v. Bombardier Recreational Prods. Inc., 876 F.3d 1350, 1360–61 (Fed. Cir. 2017) (quoting In re Cyclobenzaprine Hydrochloride Extended-Release Capsule Patent Litig., 676 F.3d 1063, 1068–69 (Fed. Cir. 2012)). slip op. at 9
- Skill levelSkill level petitioner adoptedDecided for petitioner
“have had at least a master’s degree in electrical engineering or a similar field and at least two years of experience working with semiconductor systems” and “[a]dditional relevant work experience can compensate for less education, and vice versa.” Pet. 23 (citing Ex. 1003 ¶¶ 73–74). Patent Owner agrees with Petitioner’s proposed level of ordinary skill in the art for the purposes of the Preliminary Response. Prelim. Resp. 16–17. For the purposes of this Decision, we apply Petitioner’s proffered level of skill in the art because it appears consistent with the problems addressed in the ’826 patent and the prior art.” slip op. at 9
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 9,245,826 - Samsung Electronics Co., Ltd. / Samsung Electronics America, Inc. v. Harbor Island Dynamic, LLCInstitutedPTAB · Mar 24, 2025 · IPR2024-01403 · APJ Arthur M Peslak · IPR · Institution
The Board instituted review of claims 1–17 on all asserted grounds, finding a reasonable likelihood that at least one challenged claim is unpatentable.
RulingsInstitution decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“(“POSITA”) “would have had at least a master’s degree in electrical engineering or a similar field and at least two years of experience working with semiconductor systems. Additional relevant work experience can compensate for less education, and vice versa.” Pet. 22–23 (citing Ex. 1003 ¶ 63). For purposes of the Preliminary Response, Patent Owner applies Petitioner’s level of ordinary skill in the art. Prelim. Resp. 7. For the purposes of this Decision, we apply Petitioner’s proffered level of skill in the art because it appears consistent with the problems addressed in the ’673 patent and the prior art.” slip op. at 11
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“Neither Petitioner nor Patent Owner proposes any claim construction. Pet. 19; Prelim. Resp. 8. Based on our review of the record, we determine that no express construction of any claim term is necessary for purposes of this Decision. 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 12
- Obviousness (§103) › Analogous artAnalogous artDecided for petitioner
“For a prior-art reference to qualify as analogous art, the reference must either be in the field of the applicant's endeavor or reasonably pertinent to the problem with which the inventor was concerned. In re Oetiker, 977 F.2d 1443, 1447 (Fed. Cir. 1992). References are selected as being reasonably pertinent to the problem based on the judgment of a person having ordinary skill in the art. Id. (“[I]t is necessary to consider ‘the reality of the circumstances,’ –– in other words, common sense––in deciding in which fields a person of ordinary skill would reasonably be expected to look for a solution to the problem facing the inventor.” (quoting In re Wood, 599 F.2d 1032, 1036 (CCPA 1979))). Further, in Wyers v. Master Lock Co., 616 F.3d 1231 (Fed. Cir. 2010), the Federal Circuit directed that the scope of analogous art is to be construed broadly. Id. at 1238 (citing KSR Intern’l Co. v. Teleflex, Inc., 550 U.S. 398, 402 (2007)).” slip op. at 26
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Petitioner argues that an ordinarily skilled artisan “would have been motivated to avoid the overfilling of trench sides in Yin’s deep isolation trench that would result from using unchamfered corners by instead using chamfered corners.” Pet. 25 (citing Ex. 1003 ¶ 85). According to Petitioner combining Koshimizu and Yin “is nothing more than using a known method (chamfering a deep isolation trench) that yields a known result (e.g., a reduction in necessary isolating material in said trench.).” Id. (citing Ex. 1003 ¶ 85). Petitioner next contends that an ordinarily skilled artisan would have had a reasonable expectation of success because “[c]hamfering the outer corners of Yin’s trench would have required nothing more than an adjustment to the mask pattern that defines the outline of the trench to have chamfered corners instead of square corners.” Pet. 26 (citing Ex. 1003 ¶ 89). Petitioner further contends that “[i]t was also known in the art that 135˚ angle corners (i.e., chamfered), rather than 90˚ angle corners (i.e., unchamfered) were one solution to improve problems associated with trench refill.” Id. at 26–27 (citing Ex. 1003 ¶ 89). Patent Owner does not directly address Petitioner’s motivation to combine and reasonable expectation of success arguments. Prelim. Resp. 11–15. We have reviewed Petitioner’s contentions and evidence and find, based on the present record at this stage of the proceeding, that Petitioner sufficiently establishes that an ordinarily skilled artisan would have had a motivation to combine Yin and Koshimizu with a reasonable expectation of success.” slip op. at 24
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 7,772,673 - PTAB · Mar 19, 2025 · IPR2024-01358 · APJ William V Saindon · IPR · Institution
The Board instituted IPR of claims 1–24, finding a reasonable likelihood that claim 1 would have been obvious over Jüschke.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“review under 35 U.S.C. § 314(b) and 37 C.F.R. § 42.4(a). The standard for instituting an inter partes review is set forth in 35 U.S.C. § 314(a), which provides that an inter partes review may not be instituted unless “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” For the reasons provided below, we determine that Petitioner has demonstrated a reasonable likelihood that at least one claim of the ’704 patent is unpatentable, and we institute an inter partes review. 37 C.F.R. § 42.108(a).” slip op. at 2
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownOther
“1. “deployment scenarios” Claim 1 recites a machine learning model that “includes model parameters associated with values corresponding to one or more deployment scenarios.” Ex. 1001, 14:23–25. The ’704 patent provides a list of “deployment scenarios” that includes “a cellular base station . . . in an in-line mode.” Id. at 2:39–41; see also id. at 2:38–65 (entire list). The “in-line mode” is shown in Figures 6A and 7A, in which machine learning model 103 is placed “between an input 601 and an amplifier 603.” Id. at 10:38–42, 10:47–50. Figure 6A depicts the in-line mode and is reproduced below:” slip op. at 7
- Obviousness (§103) › Motivation to combine / reasonable expectation of successInstituted
“associated with the base station as claimed, focusing on the words “associated with.” Prelim. Resp. 26–28. Patent Owner argues that Petitioner’s position is that the model is “implemented within” the base station, but that the claim requires the model to be “associated with” the base station. Id. at 27. On this record, with no claim construction offered, we fail to see how Patent Owner construes a model “implemented within,” i.e., used in, a base station to not also be “associated with” the base station. That is, it would seem that a model used in a base station is associated with that base station. Accordingly, we do not find Patent Owner’s argument persuasive on this preliminary record.” slip op. at 12
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 11,018,704 - PTAB · Mar 13, 2025 · IPR2024-01281 · APJ William V Saindon · IPR · Institution
The Board instituted IPR on all challenged claims and grounds after finding a reasonable likelihood that claim 13 would have been obvious over Cornett, Paatela, and Nelson.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“particularity why the patent it challenges is unpatentable.” Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3) (requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”)); Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015) (discussing the burden of proof in inter partes review). A claim is unpatentable under 35 U.S.C. § 103 if “the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious . . . to a person having ordinary skill in the art to which said subject matter pertains.” KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 406 (2007). The question of obviousness is resolved on the basis of underlying factual determinations, including: (1) the scope and content of the prior art; (2) any differences between the claimed subject matter and the prior art; (3) the level of skill in the art; and (4) when in evidence, objective indicia of non-obviousness. Graham v. John Deere Co. of Kansas City, 383 U.S. 1, 17–18 (1966).” slip op. at 5
- Skill levelSkill level petitioner adoptedDecided for petitioner
“A Person of Ordinary Skill in The Art (“POSITA”) in Sept. 2007 would have had a working knowledge of network communications techniques and highspeed packet processing technologies. Ex.1003, ¶20. A POSITA would have had a bachelor’s degree in computer science, computer engineering, electrical engineering, or an equivalent training, and approximately two years of work experience in network communications. Lack of work experience can be remedied by additional education, and vice versa. Ex.1003, ¶20. Pet. 13. We use this definition for purposes of this Decision because it appears consistent with the level of skill reflected in the prior art and the ’471 patent.” slip op. at 6
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner asserts that no terms require express construction. Pet. 13. We do not expressly construe any terms at this time. Realtime, 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 6
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundDecided for petitioner
“As to the claim requirement that the direct memory access device concurrently write the packet buffer memory and the protocol stack layer memory, Petitioner asserts that neither Cornett nor Paatela explicitly describes the timing of packet writing. Pet. 42. Petitioner asserts, however, that Nelson discloses writing a packet header separately and in parallel with writing the entire packet. Id. (citing Ex. 1006, 6:66–7:4; Ex. 1003 ¶ 89). Indeed, Nelson explains that the parallel storage action “avoid[s] having to read the frames out of the [larger frame] buffer” when reading a header, which eliminates the need for a separate reading step and “allows the routing decision to be made before the [frame] buffer becomes available.” Ex. 1006, 2:1–22 (containing the quoted language), 7:1–4 (describing “parallel . . . storage”). Petitioner asserts that it would have been obvious to write the packet header at the same time as writing the entire packet in Cornett, because Cornett, Paatela, and Nelson are concerned with speed, and writing in parallel would increase speed (vs. writing serially). Id. at 43–44 (citing Ex. 1003 ¶ 90); see also id. at 26 (similar argument). Reviewing Petitioner’s position with respect to independent claim 13, we determine that Petitioner has addressed each limitation in sufficient detail and with adequate citations to the record. Petitioner has also provided sufficient reasons for combining the teachings of Cornett, Paatela, and Nelson with a reasonable expectation of success. Reviewing the record before us, we determine that Petitioner has established a reasonable likelihood of success in showing that claim 13 would have been obvious in view of Cornett, Paatela, and Nelson.” slip op. at 11
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 7,738,471 - PTAB · Mar 7, 2025 · IPR2024-01347 · APJ Thomas L Giannetti · IPR · Institution
The Board instituted IPR of claims 1–27 on all grounds, finding a reasonable likelihood that Petitioner would prevail on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDenied
“framework: (1) whether the same or substantially the same art previously was presented to the Office or whether the same or substantially the same arguments previously were presented to the Office; and (2) if either condition of the first part of the framework is satisfied, whether the petitioner has demonstrated that the Office erred in a manner material to the patentability of challenged claims. Advanced Bionics, LLC v. MED-EL Elektromedizinische Geräte GmbH, IPR2019-01469, Paper 6 at 8 (PTAB Feb. 13, 2020) (precedential). We must also consider the non-exclusive factors set forth in Becton, Dickinson and Co. v. B. Braun Melsungen AG, IPR2017-01586, Paper 8 (PTAB Dec. 15, 2017) (precedential in relevant part), which “provide useful insight into how to apply the framework” under § 325(d). Advanced Bionics, Paper 6 at 9. Those non-exclusive factors include: (a) the similarities and material differences between the asserted art and the prior art involved during examination; (b) the cumulative nature of the asserted art and the prior art evaluated during examination; (c) the extent to which the asserted art was evaluated during examination, including whether the prior art was the basis for rejection; (d) the extent of the overlap between the arguments made during examination and the manner in which Petitioner relies on the prior art or Patent Owner distinguishes the prior art; (e) whether Petitioner has pointed out sufficiently how the Examiner erred in its evaluation of the asserted prior art; and” slip op. at 13
- Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) appliesNo construction neededOther
“1. Means-Plus-Function Terms Challenged claim 26 recites elements using the word “means.” See Ex. 1001, 21:6–22:5. The use of the word “means” in a claim element creates a rebuttable presumption that 35 U.S.C. § 112 ¶ 6 applies.9 See Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1348 (Fed. Cir. 2015) (en banc in relevant part). Construing a means-plus-function claim term is a two-step process. We must first identify the claimed function. Then, we must determine what structure, if any, disclosed in the specification corresponds to the claimed function. Id. at 1351 (citation omitted). The parties do not dispute that 35 U.S.C. § 112 ¶ 6 applies to those “means” elements recited in claim 26. See Pet. 6–8; see generally Prelim. Resp. a. “system firmware means for detecting loss of lockstep (LOL) for a processor in a multi-processor system” (Claim limitation [26a])” slip op. at 24
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner argues that these terms “should be construed to include both mismatch errors and errors that may eventually result in mismatch errors constituting a ‘precursor to lockstep mismatch’—including at least one of (1) detecting a lockstep mismatch error; and (2) detecting an error that may eventually cause a lockstep mismatch error.” Pet. 6. Petitioner asserts that “[t]he specification provides detecting these two types of errors as examples of detection of LOL.” Id. (citing Ex. 1001, 2:40–3:6, 7:25–36; Brogioli Decl. ¶¶ 34–36). Petitioner further asserts that this construction “is consistent with the undisputed construction in the IPR challenging U.S. Patent No. 7,502,958.” Id. (citing BMW of N. Am., LLC v. Foras Techs. Ltd., IPR2023-01373, Paper 18 at 2 (PTAB July 12, 2024)). Patent Owner does not dispute Petitioner’s position or discuss claim construction in the Preliminary Response. meaning of these claim terms that would affect this Decision. Therefore, we determine that at this stage, we do not need to expressly construe these claim terms to resolve a controversy. 3. Summary and Conclusion For the reasons given, we determine that at this stage, we do not need expressly to construe any claim term for this Decision. 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., 200 F.3d at 803)).” slip op. at 26
- Skill levelSkill level petitioner adoptedDecided for petitioner
“alleged invention “would have at least a bachelor’s degree in computer science, computer engineering, or equivalent, and at least two years of prior work experience with computer architecture design, including fault-tolerant computer architecture design,” and “[a]dditional education could substitute for professional experience and vice versa.” Pet. 4 (citing Brogioli Decl. ¶¶ 28–30). At this stage, Patent Owner does not respond to this contention. For the purpose of institution, we adopt Petitioner’s definition of a person of ordinary skill in the art because it is consistent with the level of skill reflected by the ’302 patent specification and the asserted prior art.” slip op. at 27
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 7,624,302 - PTAB · Mar 7, 2025 · IPR2024-01346 · APJ Thomas L Giannetti · IPR · Institution
The Board instituted IPR on claims 1–30 and all petition grounds, finding a reasonable likelihood of unpatentability based on Fox, Safford, and Arai, with or without Landry.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDenied
“As can be seen in the discussion above and the analysis of Petitioner’s grounds below, Arai and Landry are significant to Petitioner’s challenges. Because the Office did not previously consider all of the prior art references or combinations of references relied on in the Petition, including Arai and Landry, and because Arai and Landry are not the same or substantially the same as the art that was previously considered, we determine the Office did not previously consider the same or substantially the same prior art as is relied on in the Petition.8 Further, we find that there is not a substantial overlap, if any, between the arguments made during examination and the manner in which Petitioner relies on the prior art, including Arai and Landry, as discussed above. Therefore, part one of the Advanced Bionics framework is not met, and we need not proceed to part two of the Advanced Bionics framework. See Advanced Bionics, IPR2019-01469, Paper 6 at 8.” slip op. at 24
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“We have authority to determine whether to institute review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). An inter partes review may not be instituted unless it is determined that “the information presented in the petition filed under section 311 and any response filed under section 313 shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). For the reasons provided below, we determine, based on the record before us, there is a reasonable likelihood Petitioner would prevail in showing at least one of the challenged claims is unpatentable. Furthermore, we deny Patent Owner’s request that we exercise our discretion to deny institution in this proceeding under 35 U.S.C. § 325(d). We therefore institute inter partes review on all challenged claims and all grounds. See” slip op. at 2
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Motivation to Combine Fox, Safford, and Arai and Fox, Safford, Landry, and Arai Petitioner asserts that a person of ordinary skill “would have found it obvious to combine Fox’s multiprocessor system with Safford’s lockstep processor and error detection logics and Arai’s processor-switching implementation details.” Pet. 10. Dr. Brogioli testifies that “[a person of ordinary skill] would have been motivated to implement the processors in Fox as lockstep processors to improve reliability and availability of Fox’s server system for critical processes, for which higher reliability and availability of the system are desired.” Brogioli Decl. ¶ 90. He further testifies that “[a person or ordinary skill] also would have been motivated to implement in Fox the error detection logics that detect loss of lockstep together with the lockstep processors as taught by Safford to implement lockstep functions and further improve availability of the system.” Id. He testifies that “[a person of ordinary skill] would have understood how to implement Fox’s processors as lockstep processors with error detection logics and expect success. [A person of ordinary skill] would only have applied well-known configurations and ordinary hardware and software configuration skills.” Id. ¶ 91. Dr. Brogioli provides additional reasons motivating the combination. Id. ¶¶ 92–99. Petitioner contends that “Arai discloses switching the role of a failing processor with a spare processor.” Pet. 10. Dr. Brogioli testifies that “[a person of ordinary skill] would have been motivated to incorporate Arai’s teaching of transferring processor context from the failing processor to the spare processor not to interrupt the operating system and its running applications as desired by Fox.” Brogioli Decl. ¶ 109. He reasons that “[a person of ordinary skill] would have understood that incorporating Arai’s benefit of switching the role of the failing processor to the spare processor without affecting the operating system and running applications, which is expressly taught as desirable by both Fox and Arai and well known in the art.” Id. ¶ 110. Petitioner asserts that a person of ordinary skill also would have been motivated to further combine these references with Landry. Pet. 33–35. Dr. Brogioli testifies that “Landry discloses a fault-tolerant boot process that dynamically designates a functional CPU as logical CPU0 that performs the unique functions of a boot processor.” Brogioli Decl. ¶ 147. He testifies further that “[a person of ordinary skill] would have understood Landry’s process would have been a suitable option for selecting a boot processor in Fox’s system consistent with the initialization protocol of the IA-32 multiprocessor system.” Id. He asserts that “[a person of ordinary skill] would have understood the benefits of implementing Landry’s boot processor selection process in Fox.” Id. ¶ 148. Among other reasons, “[a person of ordinary skill] would have further understood that using the logical CPU0 as the identification for the boot processor allows for transparent replacement of the physical processor experiencing a failure with another processor without interrupting the operating system.” Id. At this stage, Patent Owner does not respond to these arguments by Petitioner or refute the testimony by Dr. Brogioli. On this record, we find that Petitioner has sufficiently demonstrated a motivation to combine Fox and Safford with Arai and to further combine these references with Landry with a reasonable expectation of success.” slip op. at 29
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“We are not aware of any controversy between the parties over the meaning of these claim terms that would affect this Decision. Therefore, we determine that at this stage, we do not need to expressly construe these claim terms to resolve a controversy.” slip op. at 26
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 7,627,781 - Biofrontera Inc. / Biofrontera Bioscience GmbH et al. v. Sun Pharmaceutical Industries, Inc.InstitutedPTAB · Feb 24, 2025 · IPR2024-01312 · APJ Erica A Franklin · IPR · Institution
The Board instituted review of claims 1, 2, 4-6, 16, 17, and 19-21 on all asserted grounds, finding a reasonable likelihood of unpatentability over Lundahl and Larsen.
RulingsInstitution decision- Skill levelSkill level patent owner adoptedDecided for patent owner
“justification for requiring a POSITA to have both an engineering degree and a medical degree. We agree, insofar as Petitioner has not clearly set out any particular explanation or evidence in support of its dual-degree requirement. In all other respects, we note that the parties’ proposed definitions are largely similar. Because we determine that Patent Owner’s proposed definition is reasonable and consistent with the ’028 patent and the cited art, we adopt Patent Owner’s definition for purposes of this Decision. In any event, our decision whether to institute does not turn on this level of skill determination.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“used to construe the claim in a civil action under 35 U.S.C. § 282(b); 37 C.F.R. § 100(b). Under that standard, claim terms “are generally given their ordinary and customary meaning” as understood by a person of ordinary skill in the art at the time of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1312–13 (Fed. Cir. 2005) (en banc) (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). See 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., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). Petitioner and Patent Owner assert that the Board need not construe any claims for the purpose of deciding whether to institute an inter partes review. Pet. 12; Prelim. Resp. 24. We agree.” slip op. at 10
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Based on our review of the Petition, Petitioner explains that a driving motivation for a POSITA to modify Lundahl to include Larsen’s five panels is “to increase the flexibility of the device to ensure the light panels could be maintained at a distance of 2-4′′ from surface of the treatment area, whether the face, arm, or back, etc.” Pet. 29 (emphasis added). As Lundahl’s device is not flexible, and such flexibility would improve its ability to treat areas other than an average sized face, we determine, at this stage in the proceeding, that this motivation for the combination is sufficient.” slip op. at 20
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightInstituted
“would have been motivated to modify Lundahl’s device by incorporating Larsen’s use of LEDs on the surface of the light applicators in place of Lundahl’s fluorescent tubes with a reasonable expectation of success. Prelim. Resp. 55. Patent Owner argues that Petitioner’s modification is based on improper hindsight bias because “Petitioner cherry-picks Larsen’s LEDs (together with the five panels) and purports to arrange them according to the [sic] ‘the uneven spacing’ of Lundahl’s fluorescent tubes.” Id. at 56 (citing Pet. 46–49; Ex. 1015 ¶¶ 175–80). According to Patent Owner, “Petitioner cannot on the one hand argue that a ‘POSITA would have understood that Larsen’s applicator is configured to uniformly illuminate a treatment surface of the patient,’ while on the other ignore Larsen’s teaching that the ‘light sources 17 are placed in regular row arrangements.’” Id. Patent Owner asserts that Petitioner’s proposed modification “mish-mashes aspects of Lundahl and Larsen ([while] avoiding the overall teachings of [challenged] claims.” Id. at 56–57. As discussed above, based on our consideration of the current record, Petitioner has provided sufficient motivation for employing Larsen’s flexible five panel configuration. These panels in Larsen already use LEDs as their light source. So, in our view, Petitioner’s incorporation of the five panels includes the lighting source, i.e., LEDs, for those panels taught by Larsen. Further, we note that Petitioner has persuasively asserted that a skilled artisan would have been motivated to use Larsen’s LEDs as they are more cost-efficient and last longer. See Pet. 31.” slip op. at 20
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 11,697,028 - Mercedes-Benz USA, LLC v. Daedalus Prime LLCSome claims unpatentablePTAB · Feb 4, 2025 · IPR2023-01345 · APJ William V Saindon · IPR · Final written decision
Claims 1–4, 7–11, and 14–20 were shown unpatentable over White or Nussbaum; claims 5, 6, 12, and 13 were not shown unpatentable over White or Nussbaum with Shakkarwar.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“We are not inclined to adopt Patent Owner’s proposal to require a specific number of years (or a fully bounded range) in the definition of the level of ordinary skill in the art. First, Patent Owner has not offered any legal authority supporting or explaining its position. Second, using the term “at least [X] years” is common practice and generally understood to be an approximation regarding the minimum level of skill of a hypothetical person—in other words, no precision can truly be expected of the specific number of years in this context. In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (“The person of ordinary skill in the art is a hypothetical person.”). The point of the exercise is to provide context for a holistic obviousness analysis. See id. (setting out “various factors” used to analyze the level of ordinary skill); Ryko Mfg. Co. v. Nu-Star, Inc., 950 F.2d 714, 718 (Fed. Cir. 1991) (“The importance of resolving the level of ordinary skill in the art lies in the necessity of maintaining objectivity in the obviousness inquiry.”); Kimberly-Clark Corp. v. Johnson & Johnson, 745 F.2d 1437, 1453 (Fed. Cir. 1984) (the hypothetical person is an “an imaginary being possessing ‘ordinary skill in the art’ created by Congress to provide a standard of patentability”). We are not persuaded of a need for strict precision in the number of years of experience of a hypothetical person used in our analysis in this case. Third, Patent Owner asks for no particular relief based upon its argument. That is, even if we agreed to remove “at least,” Patent Owner does not argue that the outcome of the Decision would be any different.1 1 For example, setting the level of skill to exactly two years of experience would not serve to automatically disqualify an expert having ten years. Kyocera Senco Ind’l Tools v. Int’l Trade Com’n, 22 F.4th 1369, 1377 (Fed. Cir. 2022) (requiring that “a witness must at least have ordinary skill in the art” and stating that “it would be improper to require an expert witness to possess ordinary skill in the art and nothing more”). In conclusion, we apply Petitioner’s proposed level of ordinary skill because it is reasonably consistent with the level of skill implied in the disclosure of the ’588 patent and the cited prior art.” slip op. at 8
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownOther
“The description of “mapping” in the ’588 patent makes clear to us that it is an association of an input value from a set of input values to a corresponding output value from a set of output values. Id. at 2:44–46 (describing “the mapping table that associates non-core domain operating frequencies and corresponding interconnect operating frequencies”) (emphases added). The “association” described here in the ’588 patent is not merely describing the fact that both exist, but that knowing the value of the first causes you to know the value of the second. This is also how it is described in the claims, wherein the “mapping” is “of selectable frequencies of the graphics processing circuitry to selectable frequencies of the interconnect.” Id. at 8:63–65 (emphasis added). Or more generally, the claim recites a mapping of a frequency to a frequency. In sum, although we agree with the parties that “mapping” should be given its plain and ordinary meaning in light of the specification, we note that the parties appear to dispute whether the prior art teaches the claimed “mapping” based on differing understandings of the plain and ordinary meaning. Based on our analysis above, we determine that a person of ordinary skill in the art reviewing the ’588 patent would understand that the “mapping” limitation requires (1) frequencies mapped to frequencies and (2) that a mapping is an association of one value to a corresponding value such that knowing the graphics frequency means that you know the corresponding interconnect frequency. Further, given that the corresponding frequencies are “selectable,” we understand that to mean that there is a set of possible frequencies that are defined from which to select. Ex. 2001, 21:19–22:2. With this understanding, we can turn to the dispute over whether the prior art teaches the limitations set forth in claims 5 and 12, as no other terms require construction at this time. Realtime, 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 12
- Expert testimonyPatent owner expert creditedPetitioner expert discountedDecided for patent owner
“Given this disclosure, we agree with the testimony of Patent Owner’s expert that Shakkarwar’s empirical calculation, by looking up the frequencies of various devices and summing them up, is not the claimed mapping of frequencies to frequencies. Ex. 2002 ¶ 44 (citing Ex. 1006, 6:8– 16, 6:49–7:17). That is, rather than teaching the use of the graphics device frequency get a corresponding interconnect frequency, Shakkarwar calculates the interconnect frequency by adding up the frequencies of all of the devices using the interconnect. Ex. 1006, 6:63–7:30; Ex. 2002 ¶ 44 (“Considerations of the hardware are addressed through empirical calculation, by knowing the requested data bandwidth of each device.”). Based on the above, we find that Shakkarwar’s table does not map a set of frequencies to a set of frequencies, and we find that the alleged mapping in Shakkarwar is not what is required by the claim because knowing the non-core device frequency in Shakkarwar is insufficient to know the required interconnect frequency. Thus, we credit the testimony of Patent Owner’s expert that Shakkarwar does not teach the claimed mapping. Ex. 2002 ¶¶ 42–45. On the other hand, the testimony of Petitioner’s expert is conclusory on this point, and fails to grapple with these differences between the claims and prior art. Ex. 1003 ¶ 140. Thus, we credit the testimony of Patent Owner’s expert over Petitioner’s expert as to the teachings of Shakkarwar.” slip op. at 16
- BurdenMixed
“that Petitioner has not shown sufficiently that Shakkarwar teaches the claimed mapping limitation, for the following reasons. The lookup table in Shakkarwar has a list of clock speeds (frequencies) for specific devices. Ex. 1006, 7:7–10. These clock speeds represent the bandwidth needs of each individual device. Id. at 7:10–13. By looking up the bandwidth needs of each individual device in use, the system can determine the total bandwidth need. Id. at 7:5–17. For example, if one device requires 20 Megabits of data and the second device requires 10 Megabits of data, then the data rate (bandwidth) required will be 30 Megabits of data. Id. at 7:13–17. If the required bandwidth is different from the current bandwidth, then the current bandwidth must be modified. Id. at 7:18–26. Given this disclosure, we agree with the testimony of Patent Owner’s expert that Shakkarwar’s empirical calculation, by looking up the frequencies of various devices and summing them up, is not the claimed mapping of frequencies to frequencies. Ex. 2002 ¶ 44 (citing Ex. 1006, 6:8– 16, 6:49–7:17). That is, rather than teaching the use of the graphics device frequency get a corresponding interconnect frequency, Shakkarwar calculates the interconnect frequency by adding up the frequencies of all of the devices using the interconnect. Ex. 1006, 6:63–7:30; Ex. 2002 ¶ 44 (“Considerations of the hardware are addressed through empirical calculation, by knowing the requested data bandwidth of each device.”). Based on the above, we find that Shakkarwar’s table does not map a set of frequencies to a set of frequencies, and we find that the alleged mapping in Shakkarwar is not what is required by the claim because knowing the non-core device frequency in Shakkarwar is insufficient to know the required interconnect frequency. Thus, we credit the testimony of Patent Owner’s expert that Shakkarwar does not teach the claimed mapping. Ex. 2002 ¶¶ 42–45. On the other hand, the testimony of Petitioner’s expert is conclusory on this point, and fails to grapple with these differences between the claims and prior art. Ex. 1003 ¶ 140. Thus, we credit the testimony of Patent Owner’s expert over Petitioner’s expert as to the teachings of Shakkarwar.” slip op. at 15
Patent outcomesUS 10,705,588 mixedClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,705,588
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.