SECONDARY FACTORsecondary factor. (usu. pl.) Patents. Objective evidence that courts consider in determining a patent claim’s nonobviousness. ? Secondary factors include ¡°commercial success, long-felt but unsolved need, failure of others, and unexpected results.¡± Graham v. John Deere Co., 383 U.S. 1, 17¨C18, 86 S.Ct. 684, 694 (1966). ¡ª Also termed secondary consideration. [Cases: Patents 36.
1. C.J.S. Patents ¡ì¡ì 87¨C88, 98¨C99.]