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Pharmaceutical Patents CAFC Doctrine of Equivalents

Hudnell Law Group

Federal Circuit Rejects Formalistic Shield to Prosecution History Estoppel

Hudnell Law Group on

On July 18, 2025, the U.S. Court of Appeals for the Federal Circuit reversed a $106 million jury verdict in Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, No. 2023-2153, finding that Colibri’s infringement claim under...more

Proskauer - The Patent Playbook

A Reminder of Doctrine of Equivalents in Biotechnology: Jennewein Biotechnologie GmbH v. International Trade Commission

Doctrine of equivalents (DOE) can be applied as a mechanism to hold a party liable for patent infringement even if the product or process does not literally infringe a patent claim, if the difference is “insubstantial”....more

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

Recent Trends on the U.S. Doctrine of Equivalents

U.S. courts have long recognized that a product or process which does not literally infringe a patent can nevertheless infringe under the "doctrine of equivalents" if it is equivalent to the claimed invention. The percentage...more

Foley & Lardner LLP

CAFC Affirms Finacea Gel Infringement Under Doctrine of Equivalents

Foley & Lardner LLP on

In Intendis GmbH v. Glenmark Pharmaceuticals Inc., USA, the Federal Circuit affirmed the district court decision that found infringement under the doctrine of equivalents. This case shows that the doctrine of equivalents...more

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