Patent Scope and Innovation in the Software Industry

Julie E. Cohen, Associate Professor of Law, Georgetown University Law Center, and Mark A. Lemley, Professor of Law, University of California at Berkeley, School of Law (Boalt Hall)

1/01/2005
(Original Publish Date: 2001)

Software patents have received a great deal of attention in the academic literature. Unfortunately, most of that attention has been devoted to the problem of whether software is or should be patentable subject matter. With roughly eighty thousand software patents already issued, and the Federal Circuit endorsing patentability without qualification, those questions are for the history books. The more pressing questions now concern the scope to be accorded software patents. In this Article, we examine the implications of some traditional patent law doctrines for innovation in the software industry. We argue that patent law needs some refinement if it is to promote rather than impede the growth of this new market, which is characterized by rapid sequential innovation, reuse and re-combination of components, and strong network effects that privilege interoperable components and products. In particular, we argue for two sorts of new rules in software patent cases.