Authorities Cited: United States Patent and Trademark Office U.S. Patent No. 3,161,083 U.S. Patent No. 5,067,932 United States Code 19 U.S.C. § 1337(a)(1)(B) Supreme Court 508 U.S. 83, 96 Circuit Courts 185 F.3d 1259 209 F.3d 1337, 1344 322 F.3d 1335, 1346 355 F.3d 1313, 1324 511 F.3d 1132, 1141