News & Analysis as of

Hatch-Waxman Appeals United States Patent and Trademark Office

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

McDermott Will & Emery

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

McDermott Will & Emery on

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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - July 2023 #4

United Therapeutics Corporation v. Liquidia Technologies, Inc., Appeal Nos. 2022-2217, 2023-1021 (Fed. Cir. July 24, 2023) In the Federal Circuit’s only precedential patent case this week, the Court considered questions...more

McDermott Will & Emery

Heightened Written Description Standard for Negative Limitations?

McDermott Will & Emery on

Addressing the issue of negative claim limitations, the US Court of Appeals for the Federal Circuit granted a petition for panel rehearing, vacated its prior decision (authored by now-retired Judge O’Malley) and reversed the...more

McDermott Will & Emery

Silence May Be Sufficient Written Description Disclosure for Negative Limitation

McDermott Will & Emery on

Addressing the issue of written description in a Hatch-Waxman litigation, the US Court of Appeals for the Federal Circuit affirmed the district court’s finding that the patent adequately described the claimed daily dose and...more

Troutman Pepper

Post-Grant Challenges in Life Sciences: A Midyear Assessment

Troutman Pepper on

The America Invents Act established inter partes review and post-grant reviews mechanisms to challenge the validity of issued United States patents. These procedures were created to improve patent quality, and were introduced...more

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