News & Analysis as of

Doctrine of Equivalents Abbreviated New Drug Application (ANDA) Patents

Robins Kaplan LLP

Almirall, LLC v. Torrent Pharms., Ltd.

Robins Kaplan LLP on

Case Name: Almirall, LLC v. Torrent Pharms., Ltd., Civ. No. 20-1373-LPS (D. Del. July 13, 2021) (Stark, J.) - Drug Product and Patent(s)-in-Suit: Aczone® Gel, 7.5% (Dapsone); U.S. Patent No. 9,517,219 (“the ’219 patent”)...more

McDonnell Boehnen Hulbert & Berghoff LLP

Eli Lilly & Co. v. Apotex, Inc. (Fed. Cir. 2020)

After more than two decades of being the red-headed stepchild of patent infringement before the Federal Circuit, infringement under the doctrine of equivalents has made a dramatic comeback in the past few years, the Court...more

McDonnell Boehnen Hulbert & Berghoff LLP

Eagle Pharmaceuticals Inc. v. Slayback Pharma LLC (Fed. Cir. 2020)

Infringement under the doctrine of equivalents (as a basis of a successful cause of action having renewed vigor before the Federal Circuit recently (see, e.g., "Galderma Laboratories, L.P. v. Amneal Pharmaceuticals LLC") is...more

Foley & Lardner LLP

Doctrine Of Equivalents Not Barred By Claim Amendments

Foley & Lardner LLP on

Recent Federal Circuit decisions demonstrate that the doctrine of equivalents is alive and well, and not always barred by claim amendments. In both Ajinomoto Co. v. ITC and Eli Lilly and Co. v. Hospira, Inc., the Federal...more

Mintz - Intellectual Property Viewpoints

Federal Circuit Cautions Against Rigid Approach to Prosecution History Estoppel in Fourth Appeal from ALIMTA® Litigations

On August 9, 2019, the United States Court of Appeals for the Federal Circuit, in Eli Lilly & Co. v. Hospira, Inc., Nos. 2018-2126, 2127, 2128, reversed in-part and affirmed in-part a district court’s determination of...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

In Mylan v. Aurobindo the Circuit affirms the grant of a preliminary injunction based upon the infringement of one of the three patents in suit. However, the panel reverses the injunction as to the other two patents based on...more

McDermott Will & Emery

No Approval for Generic Product for Treatment of Rosacea **WEB ONLY**

Addressing infringement under the doctrine of equivalents and obviousness issues, the US Court of Appeals for the Federal Circuit affirmed the district court’s ruling barring approval of a generic version of Finacea® gel...more

McDonnell Boehnen Hulbert & Berghoff LLP

Spectrum Pharmaceuticals Inc. v. Sandoz Inc. (Fed. Cir. 2015)

Last week the Federal Circuit affirmed a District Court's finding of invalidity and non-infringement in ANDA litigation between Spectrum Pharmaceuticals and Sandoz. In so doing, the Court deferred to the factual...more

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