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The Doctrine Of Equivalents: Becoming A Derelict On The Waters Of Patent Law, Charles Adams

Articles, Chapters in Books and Other Contributions to Scholarly Works

The doctrine of equivalents expands the scope of patent protection in some circumstances to cover variations of the invention that are not within the literal terms of the claims. While there is no statutory basis for the doctrine of equivalents, and it has been characterized as an anomaly, the Supreme Court has repeatedly reaffirmed the doctrine over the past 150 years. Although the Supreme Court and the lower federal courts continue to recognize the doctrine of equivalents, they have not clearly defined the circumstances in which it is available, nor demarcated the extent to which it expands the scope of …