Authorities Cited: United States Patent and Trademark Office U.S. Patent No. 5,545,565 United States Code 28 U.S.C. § 1295(a)(1) 35 U.S.C. § 285 Code of Federal Regulations 37 C.F.R. § 1.56(2)(i) Supreme Court 470 U.S. 564, 575 Circuit Courts 747 F.2d 1553, 1560 863 F.2d 867, 872-877 922 F.2d 792, 800 984 F.2d 1182, 1189 11 F.3d 1046, 1048 61 F.3d 876, 882 120 F.3d 1253, 1256 172 F.3d 852, 855 243 F.3d 1316, 1324 251 F.3d 955, 971 265 F.3d 1268, 1274 267 F.3d 1370, 1380 275 F.3d 1378, 1385 323 F.3d 1354, 1359 326 F.3d 1226, 1234 329 F.3d 1358, 1363-1367 363 F.3d 1235 394 F.3d 1348, 1351-1354 412 F.3d 1340 424 F.3d 1324, 1334 437 F.3d 1309, 1314-1319 438 F.3d 1123, 1129 457 F.3d 1334, 1338 469 F.3d 1027, 1033 476 F.3d 1359, 1365-1368 480 F.3d 1129, 1138-1139 504 F.3d 1223