- Court of Appeals for the Federal Circuit | Thursday, May 7, 1992 | Cited 0 times
- Court of Appeals for the Federal Circuit | Friday, September 9, 1988 | Cited 0 times
- Court of Appeals for the Federal Circuit | Thursday, March 28, 1991 | Cited 0 times
- Supreme Court of the United States | Monday, May 17, 1993 | Cited 0 times