NEW YORK UNIVERSITY
INTELLECTUAL PROPERTY AND ENTERTAINMENT LAW LEDGER VOLUME 1
SPRING 2010
NUMBER 2
SOFTWARE DEVELOPERS, ON GUARD!: OFFERING SOFTWARE FOR SALE CAN TRIGGER A BAR TO PATENTABILITY EVEN IF THE SOFTWARE IS UNTESTED AND INCOMPLETE PAUL A. RAGUSA AND JACK CHEN *
Paul A. Ragusa and Jack Chen discuss the on-sale bar to patentability in the context of nascent software. They conclude that a simple investigation concerning whether software code was complete at the time of an offer for sale is insufficient to establish the critical date for the purposes under 35 U.S.C. § 102(b) (“Conditions for patentability”).
In Pfaff v. Wells Elecs., Inc., 1 the Supreme Court formulated the now well known test for determining when an invention cannot be patented due to a sale or offer for sale more than one year prior to the filing of a patent application. Specifically, the Court held that an invention need not be “reduced to practice” at the time of the sale or offer to create a statutory bar against patent protection.2 Instead, a sale or offer of an invention “ready for patenting,” is sufficient to raise a statutory bar. 3 The purpose of the on-sale bar is to encourage early disclosure of inventions to the public as well as to prevent a de facto patent *
Paul A. Ragusa is a partner and Jack Chen an associate in the New York office of Baker Botts LLP, where they practice intellectual property law with an emphasis on patent litigation, patent portfolio management, counseling, and licensing. 1 525 U.S. 55 (1998). 2 Id. at 67. 3 Id. at 68. 43