News & Analysis as of

Hatch-Waxman Appeals Patent Litigation

McDermott Will & Emery

Hatch-Waxman or Not, Clinical Trials Aren’t Subject to Injunction

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Analyzing the permissible scope of an injunction under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit reversed the district court’s prohibitions on an open-label extension (OLE) of a then-running...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

McDonnell Boehnen Hulbert & Berghoff LLP

Metacel Pharmaceuticals LLC v. Rubicon Research Private Ltd. (Fed. Cir. 2025)

The Federal Circuit affirmed a District Court decision that the label for a generic drug obtained from an ANDA would not induce infringement by reciting optional drug storage conditions the read on the NDA holder's Orange...more

Knobbe Martens

Hard to Stomach: Things You Say to Prosecute a Patent Can and Will Be Used Against You

Knobbe Martens on

AZURITY PHARMACEUTICALS, INC. v. ALKEM LABORATORIES LTD. Before Murphy, Moore, and Chen. Appeal from the United States District Court for the District of Delaware. Arguments and amendments made during prosecution of a parent...more

Robins Kaplan LLP

Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc

Robins Kaplan LLP on

Bridion® (sugammadex) - Case Name: Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc., No. 2023-2254, 2025 WL 795317 (Fed. Cir. Mar. 13, 2025) (Circuit Judges Dyk, Mayer, and Reyna presiding; Opinion by Dyk, C.J.) (Appeal...more

Robins Kaplan LLP

Janssen Pharms., Inc. v. Mylan Labs. Ltd.

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Invega Trinza® (paliperidone palmitate) - Case Name: Janssen Pharms., Inc. v. Mylan Labs. Ltd., No. 2023-2042, 2025 WL 946390 (Fed. Cir. Mar. 28, 2025) (Circuit Judges Dyk, Prost, and District Judge Goldberg presiding;...more

McDermott Will & Emery

Prosecution Disclaimer Alive and Well, Especially in Closed Claim

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The US Court of Appeals for the Federal Circuit affirmed a district court’s noninfringement determination, finding that the presence of a disclaimed compound in the accused product precluded infringement. Azurity Pharm., Inc....more

Irwin IP LLP

“Consisting of” Consequences: Prosecution Disclaimers Outweigh Pretrial Stipulations 

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The Federal Circuit recently opined on whether a stipulation in litigation can overcome a disclaimer made during the prosecution history of a patent. The Hatch-Waxman Act allows generic drug companies to use clinical results...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd.

Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd., Appeal No. 2023-1977 (Fed. Cir. Apr. 8, 2025) In our Case of the Week, the Federal Circuit affirmed that defendant Alkem’s proposed generic antibiotic did not...more

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

Hatch-Waxman Requires Patent Term Extension for Reissued Patents To Be Based on Original Patent

The Federal Circuit held in Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc., 23-2254 that a reissued patent receives patent term extension (PTE) based on the issue date of the original patent, not the reissue patent,...more

McDermott Will & Emery

Hatch-Waxman Litigation Expenses Are Deductible Under Internal Revenue Code § 162(a)

The US Court of Appeals for the Federal Circuit upheld a US Court of Federal Claims ruling that Hatch-Waxman Act litigation expenses are ordinary and necessary business expenses under § 162(a) of the Internal Revenue Code,...more

Irwin IP LLP

Federal Circuit Finds Against Generics Where Hatch-Waxman's Full Five-Year Extension Fixes Delay For Pharmaceutical FDA-Review  

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Merck Sharp & Dohm B.V. v. Aurobindo Pharma USA, Inc. et al (Fed. Cir. March 13, 2025) - The Hatch-Waxman Act seeks to strike a balance in the pharmaceutical industry by incentivizing drugs makers to develop innovative...more

McDermott Will & Emery

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

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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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Actavis Labs. FL, Inc. v. United States

Actavis Labs. FL, Inc. v. United States, Appeal No. 2023-1320 (Fed. Cir. Mar. 21, 2025) Our Case of the Week, in the words of its author, Circuit Judge Stark, “is not actually a patent case. It is, instead, a tax case.” In...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

McDonnell Boehnen Hulbert & Berghoff LLP

Aurobindo v. Merck Sharp and Dohme -- Oral Argument

The Federal Circuit heard oral argument in Auribundo's appeal of the district court's decision in favor of plaintiff Merck, in a case captioned In re Sugammadex (alternatively, Aurobindo v. Merck Sharp and Dohme). The issue...more

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

Personal Jurisdiction Over Foreign Companies that File an ANDA or aBLA in the U.S.

On January 29, 2025, the Federal Circuit issued paired decisions addressing Samsung Bioepis’s (“SB”) and Formycon AG’s (“Formycon”) appeals of preliminary injunctions entered in ongoing aflibercept biosimilar litigations with...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2024 #3

CloudofChange, LLC v. NCR Corp., Appeal No. 2023-1111 (Fed. Cir. Dec. 18, 2024) In our Case of the Week, the Federal Circuit addressed the question of divided infringement in the context of system claims. In its...more

McDermott Will & Emery

The Devil Is in the Details: Bioequivalence, In Vitro Testing Not Enough to Establish Infringement

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Addressing for the first time the issue of whether bioequivalence data and in vitro testing can show that an abbreviated new drug application (ANDA) product with different immediate and delayed release portions infringed on a...more

A&O Shearman

New Jersey District Court Orders Delisting Of Teva Inhaler Patents From The Orange Book

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On June 10, 2024, Judge Stanley R. Chesler of the United States District Court for the District of New Jersey granted the Amneal defendants’ motion for partial judgment on their counterclaims in a Hatch-Waxman dispute, and...more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Upholds Rifaximin Patent Rulings, Affirms ANDA Approval Restrictions

In Salix Pharmaceuticals, Ltd. v. Norwich Pharmaceuticals, Inc. 2023-1952 (Fed. Cir. April 11, 2024), this case involves appellate review of a district court’s findings regarding patent obviousness and infringement in...more

A&O Shearman

Federal Circuit affirms district court finding of no induced or contributory infringement of generic depression drug

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In H. Lundbeck A-S v. Lupin Ltd., Case No. 2022-1194 (Fed. Circ. December 7, 2023), Plaintiffs, H. Lundbeck A/S (“Lundbeck”) and Takeda Pharmaceutical Company Ltd., Takeda Pharmaceuticals U.S.A., Inc., Takeda Pharmaceuticals...more

McDermott Will & Emery

If the Label Is Skinny Enough – No Inducement Under Hatch-Waxman

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The US Court of Appeals for the Federal Circuit made explicit what has long been considered implicit based on Warner-Lambert and its progeny, namely, that plaintiffs asserting an induced infringement theory to bar the entry...more

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