Wilson Sporting Goods and Hypothetical Patent Claims: A New Slice at the Doctrine of Equivalents

Federal Circuit Bar Journal, Vol. 1, No. 2, pp. 11-36, Summer 1991

14 Pages Posted: 11 Oct 2009

See all articles by Jorge L. Contreras

Jorge L. Contreras

University of Utah - S.J. Quinney College of Law

Date Written: Summer 1991

Abstract

In Wilson Sporting Goods v. David Geoffry Assoc, the Court of Appeals for the Federal Circuit introduced a new test limiting the patent law doctrine of equivalents. This "hypothetical claim" test requires that the court compare the product accused of patent infringement with the prior art of the claimed invention in a manner similar to that it uses when determining the validity of patent claims. This paper analyzes the methodology of this new test and analyzes the appropriateness of a patentability-type test to the patent infringement context, and its potential effect on future infringement suits.

Keywords: patent, infringement, equivalents, wilson sporting goods

Suggested Citation

Contreras, Jorge L., Wilson Sporting Goods and Hypothetical Patent Claims: A New Slice at the Doctrine of Equivalents (Summer 1991). Federal Circuit Bar Journal, Vol. 1, No. 2, pp. 11-36, Summer 1991, Available at SSRN: https://ssrn.com/abstract=1486723

Jorge L. Contreras (Contact Author)

University of Utah - S.J. Quinney College of Law ( email )

383 S. University Street
Salt Lake City, UT 84112-0730
United States

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