Authorities Cited: United States Patent and Trademark Office U.S. Patent No. 5,117,063 U.S. Patent No. 5,453,541 U.S. Patent No. 5,608,111 United States Code 19 U.S.C. § 1337(a)(1)(B) 28 U.S.C. § 1295(a)(6) Supreme Court 345 U.S. 153 404 U.S. 453, 466 508 U.S. 83 Circuit Courts 191 F.2d 796, 808 810 F.2d 1113, 1116 58 F.3d 1243, 1249 75 F.3d 1545, 1551 90 F.3d 1576, 1582 133 F.3d 1473, 1478 137 F.3d 1475, 1479 138 F.3d 1448, 1456 152 F.3d 1342, 1355 224 F.3d 1328, 1330-1331 247 F.3d 1316 250 F.3d 1369, 1379-1380 256 F.3d 1298, 1303-1304 276 F.3d 1319, 1327 288 F.3d 1359, 1366 327 F.3d 1364, 1369 415 F.3d 1303, 1313-1317 415 F.3d 1335 429 F.3d 1364, 1373 438 F.3d 1374, 1380 451 F.3d 841, 848 460 F.3d 1349, 1358 473 F.3d 1196, 1210-1211 503 F.3d 1295, 1305