Pfaff Revisited: How the Federal Circuit Has Elaborated on the “Ready for Patenting” Standard

By: Jennifer F. Miller

In Pfaff v. Wells Electronics, Inc., the Supreme Court established a two-part test to determine when an invention is “on sale” for purposes of Title 35 U.S.C. §102(b). In addition to being the subject of a commercial offer for sale, an invention must be “ready for patenting” in order to be considered “on sale.” Since Pfaff, the Court of Appeals for the Federal Circuit has had numerous opportunities to expound upon how inventors can fulfill the latter condition. This iBrief will discuss the factors the Federal Circuit has determined are indicative of an invention’s “ready for patenting” status.

Cite: 2003 Duke L. & Tech. Rev. 0030

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