1. Hybritech, Inc. v. Monoclonal Antibodies, Inc., 802 F.2d 1367, 231 USPQ 81 (Fed. Cir. 1986).
2. Lewmar Marine, Inc. v. Barient, Inc., 827 F.2d 744, 3 USPQ2d 1766 (Fed. Cir. 1987).
3. Lewmar, 3 USPQ2d at 1768.
4. See, e. g., Corning Glass Works v. Sumitomo Electric U. S. A., 868 F.2d 1251, 9 USPQ2d 1962 (Fed. Cir. 1989).
5. In re Arkley, 455 F.2d 586, 172 USPQ 524, 526 (C. C. P. A. 1972).