News & Analysis as of

Inter Partes Review (IPR) Proceeding Pharmaceutical Patents Obviousness

McDonnell Boehnen Hulbert & Berghoff LLP

MSN Laboratories Private Ltd. v. Bausch Health Ireland Ltd. (Fed. Cir. 2025)

As has been noted recently (Agilent Technologies, Inc. v. Synthego Corp.), fact-based decisions from the U.S. Patent and Trademark Office (typically from the Patent Trial and Appeal Board) are reviewed under the substantial...more

Venable LLP

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

WilmerHale

Federal Circuit Patent Watch: An Enabling Anticipatory Prior Art Reference Need Only Enable a Single Embodiment of the Claim

WilmerHale on

Precedential and Key Federal Circuit Opinions - ALNYLAM PHARMACEUTICALS, INC. v. MODERNA, INC. [OPINION] (2023-2357, 06/04/2025) (Taranto, Chen, Hughes) - Taranto, J. The Court affirmed the district court’s claim...more

McDonnell Boehnen Hulbert & Berghoff LLP

Treprostinil Saga Continues

United Therapeutics Corp. (UTC) and Liquidia Technologies Inc. have been battling for close to a decade over their respective inhaled formulations of treprostinil (UTC's Tyvaso®, Liquidia's Yutrepia™) for treatment of...more

Venable LLP

Federal Circuit Affirms PTAB’s Unpatentability Findings in Gene Therapy Hemgenix® IPRs

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On May 22, 2025, the CAFC affirmed the PTAB’s (Board) Final Written Decisions in Pfizer’s IPR2021-00925 and IPR2021-00926 finding all challenged claims of uniQure’s U.S. Patent No. 9,982,248 (“the ’248 patent”) unpatentable...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

McDermott Will & Emery

Transatlantic Terminology: Skilled Artisan Could Equate UK, US Word Meanings

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board unpatentability determination, finding that a skilled artisan would have found the term “sterile” in a UK publication to mean the same as...more

Proskauer - The Patent Playbook

Federal Circuit Affirms Stem Cell Product-by-Process Claims: Lessons in Claim Construction and Inherency from Restem LLV v. Jadi...

The Federal Circuit issued a precedential opinion on March 4, 2025, that serves as valuable guidance for product-by-process claims, particularly in the context of inherency in claim construction. In Restem, LLC v. Jadi Cell,...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

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

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

Jones Day on

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

McDonnell Boehnen Hulbert & Berghoff LLP

Recor Medical, Inc. v. Medtronic Ireland Mfg. (Fed. Cir. 2025)

The inter partes review provisions of the Leahy-Smith America Invents Act have been criticized for the propensity of the Patent Trial and Appeal Board (PTAB) to find invalid all or at least some of the challenged claims,...more

Kilpatrick

COVID-19 Vaccine Patent War: Moderna's Claims Invalidated by PTAB

Kilpatrick on

The door may now be open for additional challenges to patents covering mRNA vaccine technologies, paving the way for increased competition in the mRNA vaccine space. On Wednesday, March 5, 2025, the United States Patent...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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc.

Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc., Appeal Nos. 2024-1965, -1966, -2082, -2083 (Fed. Cir. Jan. 29, 2025) Our Case of the Week is a 31-page decision that touches on a variety of issues, including...more

Venable LLP

Celltrion Files IPR on Regeneron’s EYLEA® Patent

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On January 15, 2025, Celltrion filed IPR2025-00456 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”), challenging claims 1-17, 19-42, 44-50 as anticipated and claims 1-50 as obvious....more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) - January 2025

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

Goodwin

Update on John Hopkins and Merck Pembrolizumab Litigation

Goodwin on

In a decision that issued last week, a Patent Trial and Appeal Board (“PTAB”) panel instituted inter partes review (“IPR”) of a petition filed by Merck Sharp & Dohme LLC (“Merck”) for a patent owned by The Johns Hopkins...more

McDonnell Boehnen Hulbert & Berghoff LLP

Medtronic, Inc. v. Teleflex Life Sciences Ltd. (Fed. Cir. 2024)

Last week the Federal Circuit handed down a pair of non-precedential decisions affirming the Patent Trial and Appeal Board (PTAB) in inter partes review (IPR) proceedings.  This post concerns the decision in Medtronic, Inc....more

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

Federal Circuit IP Appeals: Summaries of Key 2023 Decisions (8th Edition): Elekta Limited v. Zap Surgical Systems, Inc. 81 F.4th...

Zap filed an IPR petition alleging obviousness of a patent owned by Elekta. The petition relied on a combination of two references. The Board found a reason to combine the references and ultimately found obviousness of the...more

WilmerHale

Federal Circuit Patent Watch: A comparative statement in a patent specification can be “definitional” for purposes of claim...

WilmerHale on

Precedential and Key Federal Circuit Opinions - 1.  PARKERVISION, INC. v. VIDAL [OPINION] (2022-1548, 12/15/2023) (Prost, Wallach, and Chen)* - Chen, J. The Court affirmed the PTAB’s determination that the patent...more

Sheppard Mullin Richter & Hampton LLP

Anticipation and Obviousness in Patent Law: An Analysis of Recent IPR Decisions

In Incept v. Palette Life Sciences 21-2063, 21-2065 (Fed. Cir. Aug. 16, 2023), the case addresses the Board’s anticipation and obviousness determinations in two IPRs (IPR2020-00002 and IPR2020-00004), where the Board held the...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - September 2023 #3

Baxalta Inc. v. Genentech, Inc., Appeal No. 22-1461 (Fed. Cir. Sept. 20, 2023) Our Case of the Week focuses on the enablement requirement. It’s the first case to come before the Federal Circuit following the Supreme...more

Sheppard Mullin Richter & Hampton LLP

Sanofi-Aventis Deutschlan GMBH v. Mylan Pharmaceuticals Inc.

The Federal Circuit reversed a Patent Trial and Appeal Board (“Board”) decision finding the challenged claims of Sanofi-Aventis’ ’614 patent unpatentable as obvious....more

Knobbe Martens

Federal Circuit Review - June 2023

Knobbe Martens on

Objective Evidence in Determining Obviousness - In Medtronic, Inc. v. Teleflex Innovations, Appeal No. 21-2357, the Federal Circuit held that a close prima facie case of obviousness can be overcome by strong evidence of...more

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