FIRST-INVENTOR DEFENSE

By SovConn | January 23, 2016

first-inventor defense.Patents. In a suit alleging infringement of a business-method patent, a

statutory affirmative defense made out by showing that the defendant was using the business

method commercially for at least a year before the plaintiff filed the patent application. • The First

Inventor Defense Act of 1999 is codified at 35 USCA § 273(a)(3). [Cases: Patents 283(1). C.J.S.

Patents §§ 436–439.][Blacks Law 8th]