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Is Novelty Obsolete - Chronicling The Irrelevance Of The Invention Date In U.S. Patent Law, Dennis D. Crouch

Michigan Telecommunications & Technology Law Review

This paper presents a normative study of patent prosecution by examining the role that invention-date-based novelty rights play in U.S. patent law. Three sources inform the primary results: the prosecution history files of 21,000+ patent applications filed in the past decade; a survey of 1,000+ patent practitioners regarding their use of the novelty provisions of the Patent Act; and a collection of 11,000,000+ prior art references cited in recently-issued patents. Additional compilations of prosecution file histories for patents identified as either (1) valuable or (2) worthless supplement these data sets and allow for an evaluation of the differential importance of …