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Burden of Proof › Doctrine of Equivalents

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

WilmerHale on

Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Schwabe, Williamson & Wyatt PC

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

Schwabe, Williamson & Wyatt PC on

In Jang v. Boston Scientific, the Circuit takes on the doctrine of ensnarement, affirming a district court’s grant of JMOL based on the patentee’s inability to develop a hypothetical claim that covered the accused stent but...more

Locke Lord LLP

New Life for Vitiation as a Defense to Doctrine of Equivalents Infringement

Locke Lord LLP on

The doctrine of claim vitiation prevents application of the doctrine of equivalents in a way that would completely eliminate a claim element – i.e., renders the claim limitation inconsequential or ineffective. This doctrine...more

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