Authorities Cited: United States Patent and Trademark Office U.S. Patent No. 6,066,861 U.S. Patent No. 6,277,301 U.S. Patent No. 6,592,780 U.S. Patent No. 6,613,247 United States Code 19 U.S.C. § 1337 Supreme Court 305 U.S. 197, 217 517 U.S. 370 Circuit Courts 732 F.2d 1572, 1578 988 F.2d 1165, 1180 991 F.2d 768, 771-772 52 F.3d 967, 976 75 F.3d 1545, 1550 78 F.3d 1575, 1581 90 F.3d 1576, 1585 133 F.3d 1473, 1477 138 F.3d 1448, 1451 264 F.3d 1094, 1099 320 F.3d 1339, 1347 342 F.3d 1361, 1375 401 F.3d 1367, 1371-1372 403 F.3d 1331, 1339 415 F.3d 1303, 1312-1322