- PTAB · Jan 14, 2026 · IPR2025-00632 · APJ Mitchell G Weatherly · IPR · Remand
On remand, the Board reinstituted review of all challenged claims on all grounds after finding Petitioner sufficiently explained its differing claim-construction positions.
RulingsRemand decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Id. The Director neither addressed the merits of Petitioner’s challenges nor found that our prior consideration of those merits was faulty. Accordingly, we understand that we need not reconsider our conclusion that Petitioner had demonstrated a reasonable likelihood of proving that claims 1, 2, 7–9, 11, 12, and 20–24 were unpatentable or that the merits of patentability set forth in the Petition warranted institution of inter partes review.” slip op. at 5
- BurdenDecided for petitioner
“The question before us, therefore, is whether the Petitioner’s proffered explanation that it has proposed a different claim interpretation before the Board because the District Court may decline to adopt the narrower claim interpretations it advocates there is sufficient. We find that Petitioner’s explanation is sufficient because it follows the Director’s exemplary logic. Whether a district court has already or might in the future decline to adopt constructions that a petitioner proposes in related district court litigation merely reflects the timing of when a dispute over claim interpretation will be resolved. The Director and Patent Owner both recognize that, to resolve the dispute over claim interpretation that exists here, a decision-maker must determine “a single claim construction that best captures the true meaning of the patent claim.” Remand 4; PO Remand Br. 3. Based on the record presented by the parties to date in this proceeding, no dispute exists that the disputed claim terms mean what Patent Owner says they mean in the Litigation. Accordingly, we find that, at this stage of the proceeding, it is undisputed that Patent Owner’s interpretations of the claim terms represent the “single claim construction that best captures the true meaning of the patent claim.”8 Under that claim interpretation, we” slip op. at 8
NonePatents in suitUS 11,835,421 - PTAB · Jun 25, 2025 · IPR2024-01280 · APJ Jo-Anne M Kokoski · IPR · Remand
On remand, the Board denied institution under § 314(a), finding the Fintiv factors favored denial despite declining to deny under § 325(d).
RulingsRemand decision- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDecided for petitioner
“Other than initials on a lengthy IDS, nothing in the record indicates that the Examiner substantively considered Takeuchi, Kim, Pienemann, or among over 1,000 other references listed on the IDS, which, as noted in the Director Review Decision, “is over 40 times the size of a typical IDS.” Pet. Remand Br. 5–6; DR Dec. 7 n.3 (citing Setting and Adjusting Patent Fees During Fiscal Year 2025, 89 FR 91898 at 91924 (Nov. 20, 2024)); Ex. 1002, 228–284. Petitioner also shows that the applicant did not respond to the Examiner’s request that the applicant specifically point out “any particular reference or portion of a reference in the [IDS] which the examiner should take [sic] pay particular attention to.” Ex. 1002, 174, 295– 302.” slip op. at 13
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivInstitution denied
“Patent Owner is likely correct that the ITC would not have been inclined to grant a stay if one had been requested at the time the Institution Decision issued. Moreover, the ITC conducted a full evidentiary hearing a month after the Institution Decision issued, and the target date for the ITC’s final determination is several months before the projected statutory deadline for the Board’s final written decision. PO Remand Br. 7. Accordingly, we determine that Fintiv factor 1 weighs in favor of discretionary denial. See also Klein Tools, Inc. v. Milwaukee Electric Tool Corp., IPR2024-01400, Paper 22 at 2 (PTAB June 9, 2025) (Acting Director Stewart determining that Fintiv factor 1 weighs in favor of discretionary denial when the ITC investigation is unlikely to be stayed, the ITC already conducted a full evidentiary hearing, and the ITC final determination is expected to issue six months before the statutory deadline for the Board’s final written decision).” slip op. at 19
Discretionary denialcites PhillipsPatents in suitUS 11,925,202 - PTAB · Jun 25, 2025 · IPR2024-01406 · APJ Jo-Anne M Kokoski · IPR · Remand
On remand, the Board denied institution of review of claims 1, 3, 4, 8–13, and 15 under § 314(a), finding the Fintiv factors favored discretionary denial.
RulingsRemand decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“stay or evidence exists that one may be granted if a proceeding is instituted.” Fintiv, Paper 11 at 6. A stay of litigation pending resolution of an inter partes review allays concerns about inefficiency and duplication of efforts, and strongly weighs against exercising our authority to deny institution. Fintiv, Paper 11 at 6. The Guidance Memo states that “the Board will apply the Fintiv factors when there is a parallel proceedings at the International Trade Commission.” Guidance Memo 2. Patent Owner asserts that a stay of the ITC Investigation had not been requested at the time of the Institution Decision,7 and argues that “the ITC does not stay investigations pending IPR.” PO Supp. Br. 4. Patent Owner also notes that the Institution Decision issued “just days before the ITC evidentiary hearing.” Id. Accordingly, Patent Owner argues that this factor favors denial. Id. Patent Owner is likely correct that the ITC would not have been inclined to grant a stay if one had been requested at the time the Institution Decision issued. Moreover, the ITC conducted a full evidentiary hearing less than three weeks after the Institution Decision issued, and the target date for the ITC’s final determination is four months before the statutory deadline for the Board’s final written decision. PO Supp. Br. 5. Accordingly, we” slip op. at 9
Discretionary denialPatents in suitUS 11,925,202 - PTAB · Sep 21, 2020 · IPR2019-00846 · APJ Jennifer Meyer Chagnon · IPR · Final written decision
Claims 3 and 4 are cancelled, and substitute claims 12 and 13 are added; Petitioner did not prove the substitute claims obvious over the asserted combinations.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“understanding of a person of ordinary skill in the art at the time of the invention. Graham, 383 U.S. at 17. Dr. Ducharme testifies that a person of ordinary skill in the art “would have had at least an undergraduate degree in mechanical engineering, or equivalent education, training, or experience, with at least two years of experience with [Unmanned Aeriel Vehicles (UAV)].” Ex. 1003 ¶ 72. Dr. Reinholtz testifies that a person of ordinary skill in the art “would have had a bachelor’s degree in mechanical engineering and at least two years of experience designing mechanisms and mechanical structures of the type used in releasable couplings and locking devices. Additional education could substitute for professional experience and significant work experience could substitute for formal education.” Ex. 2001 ¶ 28. Dr. Reinholtz acknowledges that he does not view “Dr. Ducharme’s proposed definition as substantially different from [his own].” Ex. 2001 ¶ 30. We agree and note that our consideration of the issues presented does not turn on which proposed definition is applied. Dr. Ducharme and Dr. Reinholtz also acknowledge that their respective testimony would remain the same regardless of which of these definitions of a person of ordinary skill in the art is applied. See Ex. 1028 ¶ 23; Ex. 2001 ¶ 30. In any event, for purposes of this Final Written Decision, we adopt Petitioner’s description of a person of ordinary skill in the art, while maintaining our prior determination (Inst. Dec. 10) that the prior art reflects the appropriate level of skill at the time of the claimed invention. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 12
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“1. “lugs” and “notches” Claim 1 recites, inter alia, “the shaft lock portion defining notches configured to engage corresponding lugs on the blade lock portion.” Ex. 1001, 6:7–9 (emphasis Petitioner’s (Pet. 23)). In the Institution Decision, we construed “lugs” and “notches,” in accordance with Petitioner’s proposal, as “projections” and “indentations,” respectively. See Inst. Dec. 12; Pet. 24; Ex. 1003 ¶ 86. The parties do not dispute this construction in their subsequent briefing, and we discern no reason to change this construction based on the complete record of this proceeding. Therefore, we maintain our prior construction for purposes of this Final Written Decision.” slip op. at 15
- PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, grantedGranted
“claims.” 35 U.S.C. § 316(d)(1)(B); see 37 C.F.R. § 42.121(a)(3) (“A motion to amend may cancel a challenged claim or propose a reasonable number of substitute claims.”). Patent Owner proposes two substitute claims in place of two challenged claims. Revised Mot. Amend 1, 27. “There is a rebuttable presumption that a reasonable number of substitute claims per challenged claim is one (1) substitute claim.” Lectrosonics, Paper 15 at 4; see 37 C.F.R. § 42.121(a)(3). Petitioner does not argue otherwise. See generally Opp. Therefore, we determine that the amendments propose a reasonable number of substitute claims.” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightMotivation not foundNot shown unpatentableNot shown unpatentable
“screwed onto the wrong driveshaft, when using a conventional threaded attachment mechanism (such as that described in Sasaki) is actually “mistake-proof.” Based on the evidence of record, we determine that it is not. Or, in other words, we determine that the conventional threaded attachment mechanism taught by Sasaki does not teach the Engagement Limitation (i.e., it does not prevent the clockwise lock mechanism from “be[ing] engaged in” the counterclockwise lock mechanism). According to Patent Owner, “the conventional screw-on type blade attachment mechanism does not prevent the attachment of a blade to the wrong drive.” Revised Mot. Amend 15 (citing Ex. 2001 ¶¶ 52–54, 59). Patent Owner contends that “it is relatively easy to attach a blade on the wrong drive on a UAV that utilizes the conventional screw-on type connection mechanism.” Id. (citing Ex. 2001 ¶¶ 52–54); see also Ex. 2006 (video created by Dr. Reinholtz demonstrating that a blade can be attached to the wrong drive using a screw-on type attachment mechanism). In its Reply, Patent Owner argues, again relying on the testimony of Dr. Reinholtz, that “[w]ith a conventional threaded attachment mechanism, when a blade is screwed onto the wrong driveshaft, the blade becomes engaged in the lock mechanism.” Reply 2 (citing Ex. 2016 ¶¶ 20–24). Petitioner, on the other hand, relying on the testimony of Dr. Ducharme, contends that “[w]hen a blade is forced onto the driveshaft and the threads are ‘stripped’, the blade is not, and cannot be, ‘engaged’ with the lock mechanism”; “[r]ather, the metal threads on the shaft lock portion are likely carving out new notches in the blade lock portion.” Opp. 12 (citing Ex. 1028 ¶ 49). According to Patent Owner, however, the “[i]ntent of the UAV designer is not a part of the Engagement Limitation.” Reply 2; see id. (noting that “Petitioner’s position appears to be premised on the incorrect notion that the Engagement Limitation requires the engagement of lock mechanism components in the precise way that is intended by the designer of the UAV”). Patent Owner contends that to “be engaged in,” as properly construed, “include[s] the type of connection between threads when a blade is screwed onto the wrong driveshaft.” Id. at 3. As we have construed it, to “be engaged in” merely requires “being interlocked.” See supra Section II.C.2. Relying on testimony of Dr. Reinholtz, Patent Owner further contends that “when a blade is screwed onto the wrong driveshaft, the threads on the blade mate or interlock with the threads on the driveshaft.” Reply 3 (citing Ex. 2016 ¶¶ 20, 23–24); see also Tr. 31:8–12 (“[A]s Dr. Reinholtz explains [at Ex. 2016 ¶ 23], that when a blade is misthreaded, a mechanical connection is created by engagement between the threads either because threads on the blade are deformed around threads on the shaft or threads on the shaft carved through threads on the blade.”). As shown in Dr. Reinholtz’s video, when the blades are screwed onto the wrong driveshaft, the blade and shaft are locked together (i.e., “interlocked” or “engaged”). Ex. 2006; see also Ex. 2001 ¶ 54 (describing the video, and indicating that the incorrectly installed blades “do not fall off” and are “securely attached”).” slip op. at 32
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,260,184 - PTAB · Feb 3, 2020 · IPR2018-01373 · APJ Michael R Zecher · IPR · Final written decision
The Board granted cancellation of claims 1–9 and denied substitution of claims 10–12 because Wallace anticipated and rendered the substitute claims obvious.
RulingsFinal written decision- PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend granted in partGranted in part
“need.” 37 C.F.R. § 42.121(a)(3) (2018). Patent Owner proposes three substitute claims—one for each of cancelled independent claims 1, 4, and 7. Mot. to Amend 1, Claims App’x. We determine that the number of proposed substitute claims is reasonable under 35 U.S.C. § 316(d)(1)(B) and 37 C.F.R. § 42.121(a)(3).” slip op. at 9
- Skill levelSkill level patent owner adoptedDecided for patent owner
“Apart from Dr. Sharony’s assessment requiring a Bachelor of Science degree in Electrical Engineering or an equivalent degree and Dr. Wicker’s assessment requiring a Master’s degree in Electrical Engineering, we do not discern a material difference between the assessments advanced by the declarants. In any event, each party’s declarant appears to meet or exceed both parties’ assessments (see Ex. 1002 ¶¶ 3–24, App’x A; Ex. 2016 ¶¶ 11– 19), and either assessment of the level of skill in the art is consistent with the ’851 patent and the prior art of record. We, therefore, adopt Dr. Sharony’s assessment and apply it to our anticipation and obviousness evaluations below, but we note that our conclusions would remain the same under Dr. Wicker’s assessment.” slip op. at 16
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction needed
“Patent Owner contends that “[t]he meanings of any new limitations (e.g., ‘maximum number of spatial paths’ or ‘request to establish a link channel’)—taken as a whole—are discernable from their context and would be readily understood by those of ordinary skill in the art.” Mot. to Amend 12 (citing Ex. 2016 ¶ 16). In its Opposition, Petitioner does not contend that any claim term requires an explicit construction to determine whether the prior art of record anticipates or renders obvious proposed substitute claims 10–12. See generally Opp. 1–30. In the course of our discussion of the merits of Petitioner’s opposition, we address the scope of proposed substitute claims 10–12 in applying them to Wallace.” slip op. at 17
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“Based on the record developed during trial, we find that Wallace discloses or reasonably suggests antenna number information that sets the maximum number of spatial paths that a terminal can form. Accordingly, Wallace accounts for “a value indicating the maximum number of spatial paths formable by said communication unit for multiplex communication,” as recited in proposed substitute claim 11.” slip op. at 37
Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 8,934,851
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.