News & Analysis as of

Pharmaceutical Patents Obviousness Claim Construction

Alston & Bird

Patent Case Summaries | Week Ending July 18, 2025

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Shockwave Medical, Inc. v. Cardiovascular Systems, Inc., et al., Nos. 2023-1864, -1940 (Fed. Cir. (PTAB) July 14, 2025). Opinion by Dyk, joined by Lourie and Cunningham....more

Cooley LLP

Janssen v. Teva: Federal Circuit Upholds Claims to Pharmaceutical Dosing Regimen, Clarifies Presumption of Obviousness for...

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On July 8, the US Court of Appeals for the Federal Circuit issued a precedential opinion in Janssen Pharmaceuticals, Inc. et al. v. Teva Pharmaceuticals USA, Inc. affirming the district court’s finding that patent claims to a...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Janssen Pharmaceuticals, Inc. v. Teva Pharmaceuticals USA, Inc.

Janssen Pharmaceuticals, Inc. v. Teva Pharmaceuticals USA, Inc., Appeal Nos. 2025-1228, -1252 (Fed. Cir. July 8, 2025) Our Case of the Week focuses on obviousness. More particularly, the decision included a lengthy...more

Alston & Bird

Patent Case Summaries | Week Ending July 4, 2025

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Eye Therapies, LLC v. Slayback Pharma, LLC, No. 2023-2173 (Fed. Cir. (PTAB) June 30, 2025). Opinion by Scarsi, joined by Taranto and Stoll. Eye Therapies owns a patent that claims a method for reducing eye redness...more

MoFo Life Sciences

Is Your Claim Open or Closed? Claim Construction Takes on a New Meaning in Eye Therapies, LLC v. Slayback Pharma, LLC

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On June 30, 2025, the Federal Circuit issued a precedential decision in Eye Therapies, LLC v. Slayback Pharma, LLC, reversing the Patent Trial and Appeal Board’s (PTAB’s) claim construction of the phrase “consisting...more

McDermott Will & Schulte

Prosecution history primacy: “Consisting essentially of” means what applicant said it meant

In a decision that underscores the primacy of prosecution history to determine claim scope, the US Court of Appeals for the Federal Circuit reversed the Patent Trial & Appeal Board’s interpretation of the transitional phrase...more

Knobbe Martens

An Eye Toward Prosecution History

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EYE THERAPIES, LLC v. SLAYBACK PHARMA LLC - Before Taranto, Stoll and Scarsi (sitting by designation). The patent’s prosecution history required a restrictive interpretation of the term “consisting essentially of.”...more

McDonnell Boehnen Hulbert & Berghoff LLP

Eye Therapies LLC v. Slayback Pharma, LLC (Fed. Cir. 2025)

Patent law in many respects has its own language and idiosyncratic expressions, and one such respect involves so-called "transitional" words or phrases (discussed in greater depth in the Manual of Patent Examination Procedure...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Eye Therapies, LLC v. Slayback Pharma, LLC

Eye Therapies, LLC v. Slayback Pharma, LLC, Appeal No. 2023-2173 (Fed. Cir. June 30, 2025) In its only precedential patent opinion last week, the Federal Circuit reviewed construction of the transitional claim phrase...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

Proskauer - The Patent Playbook

Eyes Open to the Past: Federal Circuit Holds Prosecution History Is Claim Construction Evidence

The Federal Circuit’s decision in Eye Therapies, LLC v. Slayback Pharma, LLC provides further insight into the tools available for patent claim construction. The Federal Circuit had previously held that a patent’s...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

Venable LLP

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

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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

Wilson Sonsini Goodrich & Rosati

Method of Treatment Claim’s Limiting Preamble Must Satisfy the Written Description Requirement

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit issued a decision in the case of In Re: Xencor, Inc. In this Appeal from the Appeals Review Panel of the Patent Trial and Appeal Board (ARP), with regard to...more

McDermott Will & Schulte

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

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

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

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

McDonnell Boehnen Hulbert & Berghoff LLP

Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc. (Fed. Cir. 2025)

Completing a recent jurisprudential "hat trick,"* the Federal Circuit affirmed a District Court grant of a preliminary injunction against a biosimilar applicant for Regeneron's EYLEA biologic drug in Regeneron...more

WilmerHale

Federal Circuit Patent Watch: Federal Circuit Orders Remanded Case Reassigned to New Judge, Finding That Trial Judge’s Statements...

WilmerHale on

Precedential and Key Federal Circuit Opinions - HD SILICON SOLUTIONS LLC v. MICROCHIP TECHNOLOGY INC. [OPINION] (2023-1397, 2/6/2025) (Lourie, Stoll, Cunningham) - Lourie, J. The Board affirmed the Final Written...more

Robins Kaplan LLP

Melinta Therapeutics, LLC v. Nexus Pharms., Inc.

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Minocin® (minocycline) - Case Name: Melinta Therapeutics, LLC v. Nexus Pharms., Inc., Civ. No. 21-2636, 2024 WL 4799896 (N.D. Ill. Nov. 15, 2024) (Kness, J.)  Drug Product and Patent(s)-in-Suit: Minocin® (minocycline);...more

McDermott Will & Schulte

Skilled Artisan’s View Is Decisive in Assessing Asserted Claim Drafting Error

The Court of Appeal (CoA) of the Unified Patent Court (UPC) clarified the legal standard for correcting obvious type inaccuracies in patent claims, explaining that the view of a skilled person at the filing date is decisive...more

Womble Bond Dickinson

Unexpected Results in Hatch Waxman Litigation: A Review of Legal Decisions from 2023

Womble Bond Dickinson on

Patent owners generally look to secondary indicia to bolster their nonobvious defenses when prior art and/or knowledge of a person of ordinary skill in the art (“POSA”) seem to make the obviousness decision a close call. This...more

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