The Use of the Doctrine of Equivalents to Fix Mistakes a Mistake?

20 Pages Posted: 27 Feb 2013

See all articles by Martin J. Adelman

Martin J. Adelman

George Washington University - Law School

Date Written: 2000

Abstract

Through empirical research, this article examines whether the patent system of the United States should limit the doctrine of non-textual infringement to obvious after-arising equivalents. Using five decisions from multiple jurisdictions, including the United States, Japan and Great Britain, the article explains the various patent systems and limitations those patent systems face in deciding whether an infringement is an obvious equivalent. The article then discusses the interpretations of patent claims and the policy implications of those interpretations. The article presents the policy argument for patentees to cover the costs associated with patent prosecution because the alternative would be burdensome costs placed on the public. The article then identifies prosecution history estoppel and prior art rejections as limitations that are eliminated by limiting the doctrine of non-textual infringement to obvious after-arising equivalents. It concludes that limitation on the doctrine of equivalents is consistent with the Supreme Court’s established view that the time of infringement is used for measuring equivalency.

Keywords: patent, intellectual property, patent system, non-textual infringement, doctrine of equivalents

JEL Classification: O34

Suggested Citation

Adelman, Martin J., The Use of the Doctrine of Equivalents to Fix Mistakes a Mistake? (2000). Northern Kentucky Law Review, Vol. 27, No. 5, 2000; GWU Legal Studies Research Paper No. 2013-26; GWU Law School Public Law Research Paper No. 2013-26. Available at SSRN: https://ssrn.com/abstract=2224224

Martin J. Adelman (Contact Author)

George Washington University - Law School ( email )

2000 H. St. NW
Washington, DC 20052
United States

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