News & Analysis as of

Prior Art Pharmaceutical Patents United States Patent and Trademark Office

MoFo Life Sciences

What Makes a Good Cell and Gene Therapy Application?

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Cell and gene therapies represent a transformative frontier in modern medicine, offering potential cures for previously untreatable conditions. However, securing intellectual property (IP) protection for these innovations...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

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Xencor Decision: Jepson Claims Require Written Description for Their...

Goodwin on

On March 13, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Xencor, Inc. (the Xencor decision). The Xencor decision affirms the decision of the Appeals Review Panel...more

Knobbe Martens

Jepson Claim Preamble Requires Written Description Support for Conventional Aspects of the Invention

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IN RE: XENCOR, INC. Before Hughes, Stark, and Schroeder (sitting by designation).  Appeal from the U.S. Patent and Trademark Office, Patent Trial and Appeal Board. To provide adequate written description for a Jepson claim,...more

Foley & Lardner LLP

GLP-1 Receptor Agonists and Patent Strategy: Securing Patent Protection for New Use of Old Drugs

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GLP-1 receptor agonists (GLP-1RAs) were initially approved for diabetes treatment (e.g., Ozempic®) but have revolutionized weight management (e.g., Wegovy®) and are now being explored for treating a wide range of health...more

McDonnell Boehnen Hulbert & Berghoff LLP

Immunogen, Inc. v. Stewart (Fed. Cir. 2025)

After creating something of a frisson due to the apprehension that the Federal Circuit might be convinced to re-evaluate whether it was a necessary element for establishing obviousness for the skilled artisan to have had a...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

Sheppard Mullin Richter & Hampton LLP

2023 Federal Circuit Case Summaries - Intellectual Property: Year End Report

We are pleased to share Sheppard Mullin’s inaugural “Year in Review” report that collects and reports on most key patent law-related Federal Circuit decisions for 2023. This is a follow up to the quarterly report we...more

McDonnell Boehnen Hulbert & Berghoff LLP

Sanofi-Aventis Deutschland GmbH v. Mylan Pharmaceuticals Inc. (Fed. Cir. 2023)

In those (in retrospect) halcyon days more than a decade ago (before Mayo, Myriad, Alice, and the subject matter eligibility quagmire arose), perhaps the most significant Supreme Court decision was KSR Int'l Co. v. Teleflex...more

American Conference Institute (ACI)

[Event] 18th Annual Paragraph IV Disputes - April 19th - 20th, New York, NY

Hosted by ACI, 18th Annual Paragraph IV Disputes Conference returns to New York City for another exciting year with curated programming that not only addresses the hot topics, but also puts them within the context of pre-suit...more

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

Knobbe Martens

Federal Circuit Review - September 2021

Knobbe Martens on

Arguments to the Patent Office That Contradict Information Submitted to the FDA Support an Inference of Deceptive Intent In Belcher Pharmaceuticals v. Hospira, Inc., Appeal No. 20-1799, the Federal Circuit held that a...more

McDermott Will & Schulte

Material Information Submitted to FDA but Withheld from PTO Gives Rise to Inequitable Conduct

The US Court of Appeals for the Federal Circuit found prior art submitted to the US Food and Drug Administration (FDA), yet withheld from the US Patent & Trademark Office (PTO) during prosecution of an asserted patent,...more

Haug Partners LLP

Belcher Pharmaceuticals’ Patent Held Unenforceable by the Federal Circuit

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The Federal Circuit published a precedential decision on September 1, 2021 regarding the unenforceability of a pharmaceutical patent due to inequitable conduct. In Belcher Pharmaceuticals LLC v. Hospira, Inc., the Court...more

Haug Partners LLP

How Different Claim Construction Standards Can Ultimately Determine the Validity of a Patent

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Recently, the Federal Circuit issued a decision in Immunex Corp. v. Sanofi-Aventis U.S. LLC addressing the different claim construction standards used by the Patent Trial and Appeal Board (“PTAB”) (broadest reasonable...more

Goodwin

An Interview with Prof. Arti Rai about the Role of “Patent Thickets” in U.S. Biosimilar Market Entry

Goodwin on

Last week, Big Molecule Watch sat down with Professor Arti Rai to discuss an article she recently co-authored, “How logically impossible patents block biosimilars.” The article, published earlier this month in the...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - August 2019

PATENT CASE OF THE WEEK - Celgene Corporation v. Laura A. Peter, Appeal Nos. 2018-1167, -1168, -1169, -1171 (Fed. Cir. July 30, 2019) - In this week’s Case of the Week, the Federal Circuit held that the retroactive...more

Bradley Arant Boult Cummings LLP

Federal Circuit Refuses to Resuscitate Prostate Cancer Drug Patent - Intellectual Property News

In a precedential decision delivered this week, the Federal Circuit shot down arguments from Appellants BTG International Limited; Janssen Biotech, Inc.; Janssen Oncology, Inc.; and Janssen Research & Development, LLC (BTG),...more

Troutman Pepper Locke

Why Biotech and Pharma Patents Survive IPR

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When the America Invents Act of 2011 ushered in a number of new administrative procedures for challenging issued patents, the biotechnology and pharmaceutical industries at first seemed largely unconcerned. Originally...more

Foley & Lardner LLP

District Court Finds PK Targets Of VIMOVO Patents Indefinite

Foley & Lardner LLP on

In an opinion issued November 19, 2018, Judge Chesler of the U.S. District Court for the District of New Jersey found two Orange Book-listed patents for VIMOVO® invalid for indefiniteness in the way certain pharmacokinetic...more

Morrison & Foerster LLP

What Are the Top Hatch-Waxman and BPCIA Developments for October 2018?

This month we highlight a new law requiring notification to the Federal Trade Commission and Department of Justice of biosimilar litigation settlements and perhaps the end of a long-running Mylan venue dispute in Delaware....more

Foley & Lardner LLP

Federal Circuit Finds Detection Claims Invalid Under 101

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In Roche Molecular Systems, Inc. v. Cepheid, the Federal Circuit affirmed the summary judgment decision of the U.S. District Court for the Northern District of California that held nucleotide primer claims and detection...more

Faegre Drinker Biddle & Reath LLP

3 Areas of Renewed Interest for Biotechnology, Chemical and Pharmaceutical Patents

The United States Patent & Trademark Office (USPTO) has renewed its interest in obviousness, functional claiming and requests for information, especially for biotechnology, chemical and pharmaceutical patents. The USPTO...more

Foley & Lardner LLP

Federal Circuit Upholds Zomig Patents Finding Intranasal Delivery Not Obviousness

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In Impax Laboratories Inc. v. Lannett Holdings Inc., the Federal Circuit upheld the district court decision finding that defendants had failed to establish obviousness of AstraZeneca’s Zomig patents (directed to intranasal...more

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