Intellectual Property Law and Copyright Laws

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Federal Circuit Reverses $106M Verdict, Finding Doctrine Of Equivalents Barred By Prosecution History Estoppel
In Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, No. 2023-2153 (Fed. Cir. July 18, 2025), the Federal Circuit reversed the district court's denial of Medtronic's motion for judgment as a matter of law (JMOL) on Colibri's doctrine of equivalents infringement theory and held that theory barred by prosecution history estoppel.
United States IP
FH
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
Article
Federal Circuit Faults Defendant For Gamesmanship For Presenting Untimely Noninfringement Theory Based On Lack Of Data It Blocked In Discovery
In Magēmā Technology LLC v. Phillips 66, No. 2024-1342 (Fed. Cir. Sept. 8, 2025) the Federal Circuit reversed denial of a motion for a new trial after the defendant argued it needed testing data to prove infringement when it had previously represented that testing data would be too dangerous to obtain.
United States IP
FH
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
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Article
Federal Circuit Reverses $106M Verdict, Finding Doctrine Of Equivalents Barred By Prosecution History Estoppel
In Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, No. 2023-2153 (Fed. Cir. July 18, 2025), the Federal Circuit reversed the district court's denial of Medtronic's motion for judgment as a matter of law (JMOL) on Colibri's doctrine of equivalents infringement theory and held that theory barred by prosecution history estoppel.
United States IP
FH
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
Article
Federal Circuit Faults Defendant For Gamesmanship For Presenting Untimely Noninfringement Theory Based On Lack Of Data It Blocked In Discovery
In Magēmā Technology LLC v. Phillips 66, No. 2024-1342 (Fed. Cir. Sept. 8, 2025) the Federal Circuit reversed denial of a motion for a new trial after the defendant argued it needed testing data to prove infringement when it had previously represented that testing data would be too dangerous to obtain.
United States IP
FH
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
See more

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