News & Analysis as of

Patent Litigation United States Patent and Trademark Office Pharmaceutical Industry

Womble Bond Dickinson

Reminder: “Consisting essentially of” Is U.S. Patent Claim Language Needing Interpretation

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On June 30, 2025, the Federal Circuit issued a precedential opinion in Eye Therapies v. Slayback Pharma in which the court interpreted the transition phrase “consisting essentially of” to be a closed term excluding other...more

Jones Day

Acting Director Denies IPR Institution Based on “Settled Expectations”

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Under a new U.S. Patent and Trademark Office (“USPTO”) policy issued in March 2025, pre-institution inter partes review (“IPR”) proceedings are now bifurcated, consisting of a first phase in which the director considers...more

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

Jones Day

USPTO Acting Director Denies IPR Institution Based on "Settled Expectations"

Jones Day on

Under a new U.S. Patent and Trademark Office ("USPTO") policy issued in March 2025, pre-institution inter partes review ("IPR") proceedings are now bifurcated, consisting of a first phase in which the director considers...more

Fish & Richardson

The PREVAIL Act Is Back. Will It Prevail This Time?

Fish & Richardson on

On May 1, 2025, Senators Chris Coons (D-DE), Thom Tillis (R-NC), Dick Durbin (D-IL), and Mazie Hirono (D-HI) reintroduced the Promoting and Respecting Economically Vital American Innovation Leadership (PREVAIL) Act. The...more

Wolf, Greenfield & Sacks, P.C.

Practical Guide to Claiming Small Molecules with Functional Language

Patent claims reciting compounds where at least one group of a compound genus is defined by its function are common. For example, familiar claim terms such as “chelating moiety,” “linker,” and “binding moiety” describe a...more

Wilson Sonsini Goodrich & Rosati

Federal Circuit Revives CRISPR-Cas9 Patent Priority Dispute

The CRISPR-Cas9 patent landscape remains complex and unsettled. The Federal Circuit’s latest decision in University of California v. Broad Institute1 revived the high-stakes dispute between UC2 and Broad3 over foundational...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Patent Term Extension for Reissued Patents is Calculated Using the Original Patent’s Issue Date Where the...

The Federal Circuit recently affirmed a district court’s holding that patent term extension (PTE) for a reissued patent was properly based on the issue date of the original patent and not that of the reissued patent. The...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Pharmaceutical Patent Protections

This week, we take a closer look at two precedential cases concerning pharmaceutical patent protections as applied to drugs in development. In Incyte Corp. v. Sun Pharm., Judge Hughes entered a dissent pushing back on the...more

Venable LLP

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

Venable LLP on

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

American Conference Institute (ACI)

[Event] 23rd Advanced Summit on Life Sciences Patents - May 19th - 20th, New York, NY

At ACI’s 23rd Advanced Summit on Life Sciences Patents, you can expect informational overviews and thorough discussion of every facet of the industry. In a time of major legislative, regulatory, and judicial change, you can't...more

Hogan Lovells

Reissued patents get Hatch-Waxman PTE based on original patent date, CAFC rules

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The U.S. Court of Appeals for the Federal Circuit (CAFC) recently considered a novel question regarding calculation of the regulatory review period for patent term extension (PTE) under 35 USC § 156 for reissued patents....more

Rothwell, Figg, Ernst & Manbeck, P.C.

mRNA/LNP Patent Litigation Update (Q1 2025)

As we previously discussed, beginning in 2022, a series of patent infringement lawsuits were filed against Moderna and collaborators Pfizer+BioNTech seeking damages based on their respective sales of the Spikevax® and...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Key Patent Considerations for Antibody Drug Conjugates (ADCs)

In 1910, German scientist Paul Ehrlich introduced a groundbreaking concept to the world: chemical compounds could be engineered to interact with unique receptors on disease-causing cells while avoiding interaction with...more

McDermott Will & Schulte

What’s the (Re)issue? Patent Term Extensions for Reissue Patents

Addressing the calculation of patent term extensions (PTEs) under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit affirmed a district court decision that under the act the issue date of the original...more

BakerHostetler

Life Sciences Newsletter - March 2025

BakerHostetler on

Welcome to the first issue of the BakerHostetler Life Sciences Newsletter! Within it you will find an overview of noteworthy developments in the life sciences space and at BakerHostetler. ...more

MoFo Life Sciences

Federal Circuit Clarifies Patent Term Extension Calculation for Reissue Patents

MoFo Life Sciences on

On March 13, 2025, the Federal Circuit issued a decision in Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc., No. 23-2254 (Fed. Cir. 2025) that clarifies how patent term extension (PTE) is calculated for reissue...more

McDonnell Boehnen Hulbert & Berghoff LLP

Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc. (Fed. Cir. 2025)

Early last year, Aurobindo, one of the Defendants* in ANDA litigation against Merck, advanced the proposition that in cases where a patent had been reissued patent term extension ("PTE") under 35 U.S.C. § 156 should be...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Federal Circuit: Reissue Patents Get PTE Based on the Original Patent’s Issue Date

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed a five-year patent term extension (“PTE”) for Merck’s sugammadex patent, holding that the district court had correctly calculated PTE based on the...more

Fish & Richardson

Federal Circuit: PTE for Reissue Patents Should Be Calculated From Original Patent’s Issue Date

Fish & Richardson on

On March 13, 2025, the Federal Circuit decided in Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc. (No. 2023-2254) how patent term extensions (PTEs) apply to reissued patents under the Hatch-Waxman Act....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

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

Foley & Lardner LLP

Leveraging USPTO Delays To Maximize Patent Term

Foley & Lardner LLP on

Before the USPTO was subject to a hiring freeze, it assumed it would onboard 400 new examiners between fiscal year 2025 and fiscal year 2026, and still predicted an increase in the backlog of unexamined patent applications....more

Venable LLP

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

Venable LLP on

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

MoFo Life Sciences

Navigating Obviousness: Federal Circuit Addresses Patentability of Pharmaceutical Dosing Methods

MoFo Life Sciences on

On March 6, 2025, the United States Court of Appeals for the Federal Circuit (“Federal Circuit”) issued a precedential decision in ImmunoGen, Inc. v. Stewart, in which the court clarified its standards for determining...more

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