Graham v. John Deere Co. of Kansas City , 86 S. Ct. 684 ( 1966 )
KSR International Co. v. Teleflex Inc. , 127 S. Ct. 1727 ( 2007 )
OTSUKA PHARMACEUTICAL CO., LTD. v. Sandoz, Inc. , 678 F.3d 1280 ( 2012 )