Law Commons^™

Explaining The Demise Of The Doctrine Of Equivalents, David L. Schwartz

All Faculty Scholarship

This article provides a novel theoretical model and extensive empirical evidence to explain the decline of a historically important patent law doctrine known as the “doctrine of equivalents.” In recent years, distinguished academics have studied the doctrine of equivalents. While these scholars noted that the doctrine of equivalents had decreased in its successful use and provided some grounds for the decline, none clearly explained why. As such, the cause and precise mechanism behind the so-called “demise” of the doctrine of equivalents have largely remained a mystery.

This article explains that the demise occurred because of two complementary forces discussed for …

Courting Specialization: An Empirical Study Of Claim Construction Comparing Patent Litigation Before Federal District Courts And The International Trade Commission, David L. Schwartz

All Faculty Scholarship

The United States International Trade Commission (ITC) has recently become an important adjudicator of patent infringement disputes, and the administrative law judges (ALJs) on the ITC are widely viewed as experts on patent law. This Article empirically examines the performance of the ITC in patent claim construction cases. The Article also compares the performance of the ITC on claim construction with that of federal district courts of general jurisdiction. This study does not find any evidence that the patent-experienced ALJs of the ITC are more accurate at claim construction than district court judges or that the ALJs learn from the …