News & Analysis as of

Inter Partes Review (IPR) Proceeding Patent Trial and Appeal Board Patent Invalidity

Venable LLP

Fresenius Kabi Files Two EYLEA® IPRs Prior to aBLA Filing Announcement

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On July 14, 2025, Fresenius Kabi filed IPR2025-01268 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”) and IPR2025-01269 against U.S. Patent No. 10,828,345 (“the ’345 patent”), both relating to EYLEA®...more

Womble Bond Dickinson

USPTO Removes Reliance on Applicant Admitted Prior Art in IPR Proceedings

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On July 31, 2025, the acting Director of the United States Patent and Trademark Office (USPTO) published a memorandum making a significant change in Patent Trial and Appeal Board (PTAB) inter partes review (IPR) practice and...more

Baker Botts L.L.P.

Ex Parte Reexaminations Poised to Make a Quiet Comeback: Discretionary Denial Guidance for Inter Partes Reexamination May Increase...

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Imagine this. You were just served with a Complaint for patent infringement and learn that, some years ago, your competitor was granted a patent giving them a legal monopoly to exclude others, including you, from making,...more

K&L Gates LLP

USPTO Director Ends IPR Against Midas Green Technologies

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On 25 July 2025, K&L Gates secured an important win for its client, Midas Green Technologies, LLC. Acting USPTO Director Coke Morgan Stewart granted Director review and denied institution of an inter partes review (IPR)...more

Alston & Bird

Patent Case Summaries | Week Ending July 25, 2025

Alston & Bird on

IGT v. Zynga Inc., No. 2023-2262 (Fed. Cir. (PTAB) July 22, 2025). Opinion by Taranto, joined by Prost and Reyna. IGT owns a patent related to secured virtual networks in gaming environments. After the patent application was...more

Goodwin

Fresenius Files Two IPRs Against Regeneron Aflibercept Patents

Goodwin on

On July 14, 2025 Fresenius filed two IPR petitions challenging Regeneron’s patents related to aflibercept. Regeneron has not asserted that Fresenius infringes either of these patents in district court litigation; however,...more

Knobbe Martens

Applicant Admitted Prior Art Can (Sometimes) Show Obviousness

Knobbe Martens on

SHOCKWAVE MED., INC., V. CARDIOVASCULAR SYS., INC. - Before Lourie, Dyk, and Cunningham.  Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board in No. IPR2019-00405. In inter partes review...more

A&O Shearman

Non-Application Of Interference Estoppel By PTAB In An IPR Institution Decision Found To Be Unreviewable

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On July 22, 2025, the Court of Appeals for the Federal Circuit concluded that the Patent Trial and Appeal Board’s (the “PTAB”) decision not to apply interference estoppel and, therefore, to institute an inter partes review...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

What Should the USPTO Consider Changing for Implementing Post-Final Written Decision Estoppel in Ex Parte Reexamination Based on...

The estoppel provision of 35 U.S.C. § 315(e)(1) had largely prevented requesters from challenging claims of a patent via ex parte reexamination after an inter partes review (IPR) that resulted in a final written decision...more

Jones Day

Inventor Testimony of Reduction Date Leads to Denial

Jones Day on

The Patent Trial and Appeal Board (PTAB) denied institution of an inter partes review (IPR) brought by Par-Kan Company, LLC against Unverferth Manufacturing Company regarding U.S. Patent No. 8,967,940 (“the ‘940 patent”). ...more

ArentFox Schiff

Overcoming the ‘Settled Expectations’ Doctrine: Guidance From Intel v. Proxense

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Last month, we provided an overview of the Patent Trial and Appeal Board’s (PTAB) application of the “settled expectations” doctrine, articulated in recent PTAB director-level decisions. Interim Director Coke Morgan Stewart...more

McDermott Will & Emery

Applicant-admitted prior art may inform but can’t be basis for IPR challenges

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit clarified that while applicant-admitted prior art (AAPA) may be cited as evidence of general background knowledge in inter partes review (IPR) proceedings, it cannot serve as...more

Jones Day

“Settled-Expectations” Analysis May Leave Some Petitioners Feeling Unsettled

Jones Day on

As discretionary denials are on the rise and institution rates are declining at the PTAB (link), recent decisions from the PTAB have introduced the notion of a patent owner’s “settled expectations” as another reason for the...more

A&O Shearman

Federal Circuit Invalidates Patent For Angioplasty Catheter Based On Applicant Admitted Prior Art

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The Federal Circuit recently issued a precedential decision in Shockwave Med., Inc. v. Cardiovascular Sys., Inc. (CSI), affirming-in-part and reversing-in-part the Patent Trial and Appeal Board’s (PTAB) decision, and...more

Venable LLP

Spotlight On: Enbrel® (etanercept) / Erelzi® (etanercept-szzs) / Eticovo® (etanercept-ykro) - July 2025

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Etanercept 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

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

Venable LLP on

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

Venable LLP on

Trastuzumab 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

Morgan Lewis

‘Settled Expectations,’ PTAB’s New Discretionary Denial Factor, Gains Additional Footing in Dabico

Morgan Lewis on

Acting Director of the USPTO Coke Morgan Stewart recently discretionarily denied institution of an inter partes review (IPR) based on a new consideration, “settled expectations,” that is, the length of time that the...more

Venable LLP

Pembrolizumab Patent IPR Final Written Decision Issued and Director Review Requested

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On June 9, 2025, the Patent Trial and Appeal Board (“Board”) issued a Final Written Decision (“FWD”) in Merck’s IPR2024-00240 against The Johns Hopkins University’s (“JHU”) U.S. Patent No. 11,591,393 (“the ’393 patent”),...more

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

Irwin IP LLP

No Rhythm, No Review: USPTO Director Skips a Beat on IPRs. 

Irwin IP LLP on

iRhythm Technologies, Inc., v. Welch Allyn, Inc., IPR2025-00363, IPR2025-00374, IPR2025-00376, IPR2025-00377, IPR2025-00378 (P.T.A.B. June 6, 2025) - On June 6, 2025, United States Patent and Trademark Office (“USPTO”)...more

Baker Donelson

Insights from Month One of Acting Director Stewart's Decisions on Discretionary Denial under the New Interim Processes for PTAB...

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Just three months ago, Acting Director of the U.S. Patent and Trademark Office (USPTO) Coke Morgan Stewart rescinded existing guidelines governing the Patent Trial and Appeal Board's (PTAB) discretion to deny petitions for...more

Vinson & Elkins LLP

File Early or Risk Denial: iRhythm IPR Institution Denial Underscores the Importance of Filing IPR Petitions Sooner Rather Than...

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On June 6, 2025, the Acting Director of the United States Patent and Trademark Office (“USPTO”), Coke Morgan Stewart, issued a decision denying institution of five inter partes review (“IPR”) petitions filed by iRhythm, Inc....more

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