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Patents Prior Art Patent Invalidity

Jones Day

Delegated Rehearing Panel Sends Lifeline to Mercedes-Benz

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A Delegated Rehearing Panel (“DRP”) recently modified the PTAB’s construction of the claim term “workload” and remanded, giving Mercedes-Benz USA, LLC (“Petitioner”) another opportunity to challenge a processor patent....more

Jones Day

Federal Circuit: RPI Arguments Must First Be Raised at the PTAB

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Apple Inc., et. al v. Gesture Technology Partners, LLC (March 4, 2025) (Moore (Chief Judge), Prost and Stoll) (on appeal from the Patent Trial and Appeal Board) [WAIVER; OBVIOUSNESS] ....more

White & Case LLP

Federal Circuit Reinforces Standard for Prior Art Enablement in CRISPR Dispute

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On June 11, 2025, the U.S. Court of Appeals for the Federal Circuit decided Agilent Technologies, Inc. v. Synthego Corp. (No. 23-2186), addressing enablement of prior art references for disputed CRISPR-Cas9 gene-editing...more

ArentFox Schiff

Federal Circuit Narrows Scope of IPR Estoppel, Resolving District Court Split

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The Federal Circuit recently clarified in Ingenico Inc. v. IOENGINE, LLC that inter partes review (IPR) estoppel does not extend to physical systems described in prior art patents or printed publications....more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

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Pegfilgrastim Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Irwin IP LLP

Seeing Double?  Similar Claim Terms Could Be Trouble  

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When prosecuting a patent with similar language across various claims make sure your claim terms have different meanings, otherwise, during litigation you may lose the strategic opportunity to keep some claims valid if others...more

Fish & Richardson

Ingenico v. IOENGINE and the Diminishing Role of Sotera Stipulations

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In Ingenico v. IOENGINE, No. 2023-1367 (Fed. Cir. May 7, 2025), the Federal Circuit resolved a long-standing split among District Courts in favor of petitioners regarding inter partes review (IPR) estoppel under 35 U.S.C. §...more

Volpe Koenig

When an IDS Comes Back to Haunt You: Lessons from iRhythm v. Welch Allyn

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Patent attorneys are well-versed in the function of the Information Disclosure Statement (IDS) during prosecution. We understand that listing prior art in an IDS satisfies the duty of candor, helps insulate patents from...more

K&L Gates LLP

Estoppel Estopped?

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The Federal Circuit recently resolved a split among the district courts whether patent infringement defendants who bring inter partes review (IPR) challenges are estopped from raising new prior art challenges in a co-pending...more

Jones Day

Estoppel Trumps Substance: ITC Bars Respondent’s Invalidity Grounds Raised in IPR

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Recently, an ITC Administrative Law Judge applied IPR statutory estoppel under 35 U.S.C. § 315(e)(2) in denying a Respondent’s motion for summary determination of invalidity in Certain Audio Players and Components Thereof,...more

Jones Day

Federal Circuit: Petitioner Estoppel Does Not Apply to Product Prior At Grounds

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In IOENGINE, LLC v. Ingenico Inc. (Fed. Cir. 2025), the Federal Circuit narrowed the scope of IPR estoppel under 35 U.S.C. § 315(e)(2), which precludes an IPR petitioner from asserting in court that a patent claim “is invalid...more

Sheppard Mullin Richter & Hampton LLP

A Line in the Sand: Federal Circuit Bounds IPR Estoppel in Ingenico v. IOENGINE

In a significant development for patent litigants, the Federal Circuit in Ingenico Inc. v. IOENGINE, LLC, affirmed an important limitation on the scope of IPR estoppel under 35 U.S.C. § 315(e)(2). Specifically, the court held...more

A&O Shearman

The CAFC Holds That IPR Estoppel Does Not Shield Patentees From System Prior Art

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On May 7, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) affirmed a decision by the U.S. District Court for the District of Delaware (“district court”) that found claims of two IOENGINE, LLC (“IOENGINE”)...more

Akin Gump Strauss Hauer & Feld LLP

Claim Construction Issues and Large Number of Claims Not Enough to Institute a Second Petition for Inter Partes Review

The Patent Trial and Appeal Board recently declined to institute a petition for IPR that was filed on the same day that the petitioner filed another petition challenging the same claims of the same patent. The board was not...more

Paul Hastings LLP

Federal Circuit Clarifies the Scope of IPR Estoppel

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The Federal Circuit recently clarified the scope of statutory estoppel that applies in District Court after the PTAB issues a final written decision in a related inter partes review (IPR). Ingenico Inc. v. IOENGINE, LLC, No....more

BakerHostetler

[Podcast] A New Test: Landmark Decision Overrules Framework for Design Patent Obviousness

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The legal landscape quaked, and clients and counsel continue to navigate the tremors. More than 40 years of precedent was upended in May 2024 when a federal circuit court struck down the Rosen-Durling test for assessing...more

Jones Day

PTAB Institutes IPR Despite Concurrent Ex Parte Reexamination

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In Thermaltake Technology Co., Ltd. et al v. Chien-Hao Chen et al, IPR2024-01230, Paper 12 (PTAB Feb. 19, 2025), the PTAB granted the institution of inter partes review (“IPR”) while an ex parte reexamination (“EPR”) on the...more

Alston & Bird

Patent Case Summaries | Week Ending April 25, 2025

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Qualcomm Inc. v. Apple Inc., et al., Nos. 2023-1208, -1209 (Fed. Cir. (PTAB) Apr. 23, 2025). Opinion by Reyna, joined by Lourie and Prost. Qualcomm owns a patent related to integrated circuit devices using multiple power...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Qualcomm Inc. v. Apple Inc.

Qualcomm Inc. v. Apple Inc., Appeal Nos. 2023-1208, -1209 (Fed. Cir. Apr. 23, 2025) - For a second time in this case, the Federal Circuit considered the proper role of “Applicant Admitted Prior Art” in an inter partes...more

Jones Day

PTAB Allows Three Concurrent IPR Petitions for Unusual Patent Claims

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Recently, the Patent Trial and Appeal Board (“the Board”) was persuaded to consider the merits of three out of seven concurrent petitions for an inter partes review of a single patent due to the patent’s complicated claiming...more

McDonnell Boehnen Hulbert & Berghoff LLP

Sage Products, LLC v. Stewart (Fed. Cir. 2025)

When a prevailing challenger withdraws from an appeal in post-grant proceedings, the Director can intervene under 35 U.S.C. § 143, which is what happened in an appeal in Sage Products, LLC v. Stewart after Challenger Becton...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Recentive Analytics, Inc., v. Fox Corp.

Recentive Analytics, Inc., v. Fox Corp., Appeal No. 2023-2437 (Fed. Cir. Apr. 18, 2025) In our Case of the Week, the Federal Circuit addressed a question of first impression concerning whether developments in machine...more

A&O Shearman

Federal Circuit Affirms PTAB Decision On Unpatentability, With The PTO Stepping In After Appellee Withdrew

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On April 15, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) affirmed the Patent Trial and Appeal Board’s (“Board”) decision finding all challenged claims of Sage Products, LLC’s patents anticipated based on...more

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

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It is relatively uncommon for parties to submit expert declarations in the preliminary-response phase of an IPR proceeding, but recently the Patent Owner in Imperative Care, Inc. v. Inari Medical, Inc. effectively used that...more

Venable LLP

Spotlight On: Lantus® / Lantus® SoloSTAR® (insulin glargine recombinant) / Basaglar® (insulin glargine) / Semglee® (insulin...

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Insulin Glargine Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

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