Graham v. John Deere Co. of Kansas City , 86 S. Ct. 684 ( 1966 )
MARKMAN Et Al. v. WESTVIEW INSTRUMENTS, INC., Et Al. , 116 S. Ct. 1384 ( 1996 )
KSR International Co. v. Teleflex Inc. , 127 S. Ct. 1727 ( 2007 )