- Court of Appeals for the Federal Circuit | Monday, August 17, 1992 | Cited 0 times
- Court of Appeals for the Federal Circuit | Monday, October 1, 1990 | Cited 0 times
- Court of Appeals for the Federal Circuit | Thursday, September 10, 1992 | Cited 0 times
- Supreme Court of the United States | Wednesday, December 8, 1971 | Cited 0 times