PATENTS WHICH EXPIRED ON July 26, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent Number                    Serial Number                   Issue Date

4,759,109                         06/930,745                       07/26/88
4,759,113                         07/061,253                       07/26/88
4,759,132                         07/040,156                       07/26/88
4,759,143                         06/908,597                       07/26/88
4,759,145                         06/940,986                       07/26/88
4,759,153                         06/885,172                       07/26/88
4,759,170                         07/035,985                       07/26/88
4,759,178                         07/026,829                       07/26/88
4,759,180                         06/941,419                       07/26/88
4,759,181                         07/009,687                       07/26/88
4,759,184                         07/055,884                       07/26/88
4,759,185                         07/098,163                       07/26/88
4,759,190                         07/041,093                       07/26/88
4,759,192                         07/035,102                       07/26/88
4,759,206                         07/021,108                       07/26/88
4,759,207                         06/913,388                       07/26/88
4,759,220                         06/841,465                       07/26/88
4,759,224                         07/096,338                       07/26/88
4,759,225                         07/056,519                       07/26/88
4,759,228                         07/114,424                       07/26/88
4,759,229                         07/027,383                       07/26/88
4,759,239                         07/022,619                       07/26/88
4,759,243                         06/944,484                       07/26/88
4,759,249                         06/909,912                       07/26/88
4,759,251                         07/054,535                       07/26/88
4,759,255                         07/053,994                       07/26/88
4,759,259                         06/945,498                       07/26/88
4,759,263                         07/067,605                       07/26/88
4,759,266                         07/002,169                       07/26/88
4,759,277                         06/931,529                       07/26/88
4,759,287                         06/586,889                       07/26/88
4,759,290                         06/838,159                       07/26/88
4,759,295                         06/736,964                       07/26/88
4,759,325                         07/007,877                       07/26/88
4,759,339                         06/930,520                       07/26/88
4,759,340                         07/058,420                       07/26/88
4,759,353                         07/009,931                       07/26/88
4,759,354                         06/935,427                       07/26/88
4,759,364                         06/901,517                       07/26/88
4,759,382                         07/037,539                       07/26/88
4,759,386                         07/004,730                       07/26/88
4,759,396                         07/048,404                       07/26/88
4,759,397                         06/839,762                       07/26/88
4,759,399                         07/047,625                       07/26/88
4,759,400                         06/914,015                       07/26/88
4,759,401                         06/870,434                       07/26/88
4,759,403                         06/858,135                       07/26/88
4,759,411                         06/939,944                       07/26/88
4,759,413                         07/037,818                       07/26/88
4,759,414                         07/031,982                       07/26/88
4,759,418                         07/017,053                       07/26/88
4,759,420                         07/074,087                       07/26/88
4,759,436                         06/943,999                       07/26/88
4,759,441                         06/918,263                       07/26/88
4,759,444                         07/045,095                       07/26/88
4,759,445                         07/014,148                       07/26/88
4,759,468                         07/074,150                       07/26/88
4,759,469                         06/926,182                       07/26/88
4,759,472                         07/014,622                       07/26/88
4,759,479                         06/381,504                       07/26/88
4,759,496                         07/044,070                       07/26/88
4,759,500                         06/944,017                       07/26/88
4,759,501                         07/097,300                       07/26/88
4,759,506                         07/048,855                       07/26/88
4,759,514                         06/913,275                       07/26/88
4,759,518                         07/073,736                       07/26/88
4,759,528                         07/121,184                       07/26/88
4,759,536                         07/103,644                       07/26/88
4,759,538                         06/885,687                       07/26/88
4,759,540                         06/903,725                       07/26/88
4,759,542                         06/825,550                       07/26/88
4,759,550                         07/046,102                       07/26/88
4,759,551                         07/062,909                       07/26/88
4,759,552                         07/107,563                       07/26/88
4,759,559                         06/894,551                       07/26/88
4,759,563                         06/855,516                       07/26/88
4,759,564                         07/028,223                       07/26/88
4,759,576                         06/884,712                       07/26/88
4,759,589                         07/084,433                       07/26/88
4,759,598                         06/934,041                       07/26/88
4,759,600                         06/734,505                       07/26/88
4,759,603                         06/849,609                       07/26/88
4,759,624                         07/058,333                       07/26/88
4,759,628                         06/826,341                       07/26/88
4,759,632                         06/833,361                       07/26/88
4,759,634                         07/014,054                       07/26/88
4,759,636                         06/809,618                       07/26/88
4,759,640                         07/016,043                       07/26/88
4,759,649                         07/018,242                       07/26/88
4,759,650                         07/012,780                       07/26/88
4,759,656                         06/912,788                       07/26/88
4,759,665                         06/945,217                       07/26/88
4,759,668                         06/947,870                       07/26/88
4,759,674                         06/853,001                       07/26/88
4,759,681                         06/819,253                       07/26/88
4,759,692                         07/064,770                       07/26/88
4,759,701                         07/098,306                       07/26/88
4,759,706                         07/053,469                       07/26/88
4,759,708                         07/031,610                       07/26/88
4,759,711                         07/147,050                       07/26/88
4,759,714                         06/269,982                       07/26/88
4,759,724                         07/020,152                       07/26/88
4,759,729                         06/668,752                       07/26/88
4,759,734                         06/945,570                       07/26/88
4,759,739                         06/664,173                       07/26/88
4,759,747                         06/921,252                       07/26/88
4,759,759                         06/564,206                       07/26/88
4,759,760                         06/925,086                       07/26/88
4,759,767                         07/083,326                       07/26/88
4,759,777                         07/119,149                       07/26/88
4,759,783                         07/067,187                       07/26/88
4,759,789                         06/730,512                       07/26/88
4,759,791                         06/872,799                       07/26/88
4,759,801                         06/884,116                       07/26/88
4,759,802                         06/925,341                       07/26/88
4,759,804                         06/880,046                       07/26/88
4,759,814                         06/870,239                       07/26/88
4,759,818                         06/776,873                       07/26/88
4,759,819                         06/894,211                       07/26/88
4,759,820                         07/051,910                       07/26/88
4,759,821                         06/897,891                       07/26/88
4,759,827                         06/934,590                       07/26/88
4,759,834                         07/072,738                       07/26/88
4,759,842                         06/937,738                       07/26/88
4,759,843                         07/104,422                       07/26/88
4,759,849                         07/024,006                       07/26/88
4,759,851                         07/037,484                       07/26/88
4,759,853                         07/066,536                       07/26/88
4,759,857                         06/892,995                       07/26/88
4,759,860                         07/011,414                       07/26/88
4,759,868                         07/039,049                       07/26/88
4,759,874                         07/081,056                       07/26/88
4,759,875                         06/818,842                       07/26/88
4,759,879                         06/823,218                       07/26/88
4,759,881                         06/835,481                       07/26/88
4,759,886                         07/007,549                       07/26/88
4,759,903                         06/932,631                       07/26/88
4,759,920                         06/872,062                       07/26/88
4,759,922                         06/788,161                       07/26/88
4,759,935                         06/945,368                       07/26/88
4,759,937                         06/633,396                       07/26/88
4,759,938                         06/933,109                       07/26/88
4,759,943                         06/769,166                       07/26/88
4,759,944                         06/928,517                       07/26/88
4,759,949                         07/076,974                       07/26/88
4,759,958                         07/076,764                       07/26/88
4,759,961                         07/048,990                       07/26/88
4,759,964                         06/905,302                       07/26/88
4,759,966                         06/854,025                       07/26/88
4,759,970                         07/043,684                       07/26/88
4,759,973                         07/003,352                       07/26/88
4,759,977                         06/898,385                       07/26/88
4,759,980                         07/017,257                       07/26/88
4,759,989                         06/931,085                       07/26/88
4,759,992                         06/905,819                       07/26/88
4,760,001                         07/026,610                       07/26/88
4,760,004                         07/119,525                       07/26/88
4,760,008                         07/006,379                       07/26/88
4,760,012                         07/091,349                       07/26/88
4,760,013                         07/015,402                       07/26/88
4,760,021                         06/668,904                       07/26/88
4,760,026                         06/931,880                       07/26/88
4,760,027                         06/849,646                       07/26/88
4,760,030                         06/649,253                       07/26/88
4,760,037                         06/914,575                       07/26/88
4,760,039                         07/073,070                       07/26/88
4,760,057                         06/725,605                       07/26/88
4,760,064                         06/808,420                       07/26/88
4,760,068                         06/871,386                       07/26/88
4,760,073                         06/946,118                       07/26/88
4,760,090                         06/838,357                       07/26/88
4,760,100                         07/113,642                       07/26/88
4,760,105                         06/785,812                       07/26/88
4,760,110                         07/034,448                       07/26/88
4,760,116                         06/937,035                       07/26/88
4,760,117                         06/907,557                       07/26/88
4,760,126                         06/904,203                       07/26/88
4,760,128                         06/893,779                       07/26/88
4,760,132                         06/942,467                       07/26/88
4,760,134                         06/770,341                       07/26/88
4,760,140                         06/920,399                       07/26/88
4,760,144                         06/929,867                       07/26/88
4,760,157                         06/825,023                       07/26/88
4,760,160                         06/818,639                       07/26/88
4,760,163                         07/148,315                       07/26/88
4,760,169                         07/036,059                       07/26/88
4,760,171                         07/032,257                       07/26/88
4,760,173                         07/102,533                       07/26/88
4,760,174                         06/778,190                       07/26/88
4,760,182                         06/832,637                       07/26/88
4,760,185                         06/860,144                       07/26/88
4,760,186                         06/907,278                       07/26/88
4,760,198                         06/796,625                       07/26/88
4,760,201                         06/843,168                       07/26/88
4,760,208                         06/502,885                       07/26/88
4,760,209                         06/940,691                       07/26/88
4,760,213                         06/943,271                       07/26/88
4,760,216                         07/007,704                       07/26/88
4,760,224                         06/843,752                       07/26/88
4,760,231                         06/778,082                       07/26/88
4,760,236                         06/931,740                       07/26/88
4,760,239                         06/866,887                       07/26/88
4,760,254                         06/742,233                       07/26/88
4,760,258                         06/924,067                       07/26/88
4,760,277                         07/014,633                       07/26/88
4,760,288                         06/887,774                       07/26/88
4,760,314                         06/905,963                       07/26/88
4,760,322                         07/003,649                       07/26/88
4,760,331                         06/292,803                       07/26/88
4,760,333                         06/795,330                       07/26/88
4,760,334                         06/835,653                       07/26/88
4,760,348                         07/033,278                       07/26/88
4,760,350                         07/059,530                       07/26/88
4,760,354                         06/844,049                       07/26/88
4,760,360                         07/084,088                       07/26/88
4,760,365                         06/946,996                       07/26/88
4,760,369                         06/769,209                       07/26/88
4,760,381                         06/810,749                       07/26/88
4,760,386                         06/873,757                       07/26/88
4,760,388                         06/495,663                       07/26/88
4,760,391                         06/732,865                       07/26/88
4,760,394                         06/895,371                       07/26/88
4,760,395                         06/881,359                       07/26/88
4,760,402                         06/868,679                       07/26/88
4,760,404                         06/913,464                       07/26/88
4,760,412                         06/890,346                       07/26/88
4,760,415                         07/117,811                       07/26/88
4,760,421                         06/922,731                       07/26/88
4,760,445                         07/036,221                       07/26/88
4,760,446                         07/102,435                       07/26/88
4,760,480                         07/022,500                       07/26/88
4,760,481                         06/888,116                       07/26/88
4,760,491                         07/009,431                       07/26/88
4,760,500                         07/105,091                       07/26/88
4,760,515                         06/791,647                       07/26/88
4,760,519                         06/908,927                       07/26/88
4,760,531                         06/862,824                       07/26/88
4,760,542                         06/795,081                       07/26/88
4,760,545                         06/684,786                       07/26/88
4,760,548                         06/873,902                       07/26/88
4,760,556                         06/911,431                       07/26/88
4,760,559                         06/883,311                       07/26/88
4,760,565                         06/906,862                       07/26/88
4,760,566                         06/847,167                       07/26/88
4,760,568                         06/911,432                       07/26/88
4,760,571                         06/758,389                       07/26/88
4,760,574                         06/888,355                       07/26/88
4,760,577                         07/007,645                       07/26/88
4,760,582                         06/700,123                       07/26/88
4,760,587                         06/879,656                       07/26/88
4,760,588                         06/608,131                       07/26/88
4,760,592                         06/832,262                       07/26/88
4,760,600                         07/107,995                       07/26/88
4,760,604                         06/775,144                       07/26/88

                    PATENTS WHICH EXPIRED ON July 21, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,131,095                         07/565,655                       07/21/92
5,131,097                         07/668,774                       07/21/92
5,131,103                         07/629,433                       07/21/92
5,131,112                         07/746,051                       07/21/92
5,131,114                         07/594,709                       07/21/92
5,131,116                         07/736,789                       07/21/92
5,131,120                         07/813,348                       07/21/92
5,131,124                         07/722,641                       07/21/92
5,131,126                         07/687,994                       07/21/92
5,131,133                         07/749,750                       07/21/92
5,131,140                         07/661,040                       07/21/92
5,131,147                         07/720,200                       07/21/92
5,131,153                         07/754,600                       07/21/92
5,131,156                         07/702,619                       07/21/92
5,131,160                         07/740,897                       07/21/92
5,131,173                         07/423,451                       07/21/92
5,131,174                         07/573,490                       07/21/92
5,131,176                         07/729,477                       07/21/92
5,131,180                         07/686,456                       07/21/92
5,131,185                         07/751,678                       07/21/92
5,131,186                         07/729,222                       07/21/92
5,131,187                         07/643,583                       07/21/92
5,131,190                         07/648,287                       07/21/92
5,131,192                         07/793,816                       07/21/92
5,131,193                         07/676,327                       07/21/92
5,131,202                         07/616,233                       07/21/92
5,131,206                         07/615,984                       07/21/92
5,131,221                         07/455,596                       07/21/92
5,131,232                         07/586,107                       07/21/92
5,131,239                         07/658,027                       07/21/92
5,131,246                         07/703,377                       07/21/92
5,131,256                         07/434,891                       07/21/92
5,131,264                         07/758,171                       07/21/92
5,131,265                         07/658,809                       07/21/92
5,131,269                         06/593,778                       07/21/92
5,131,275                         07/679,261                       07/21/92
5,131,282                         07/631,828                       07/21/92
5,131,294                         07/740,385                       07/21/92
5,131,300                         07/635,726                       07/21/92
5,131,307                         07/335,607                       07/21/92
5,131,309                         07/524,745                       07/21/92
5,131,311                         07/662,964                       07/21/92
5,131,317                         07/707,111                       07/21/92
5,131,320                         07/815,636                       07/21/92
5,131,325                         07/693,534                       07/21/92
5,131,326                         07/747,305                       07/21/92
5,131,329                         07/622,640                       07/21/92
5,131,336                         07/696,739                       07/21/92
5,131,337                         07/729,061                       07/21/92
5,131,339                         07/416,141                       07/21/92
5,131,353                         07/619,060                       07/21/92
5,131,357                         07/677,538                       07/21/92
5,131,359                         07/434,005                       07/21/92
5,131,363                         07/726,307                       07/21/92
5,131,372                         07/635,508                       07/21/92
5,131,384                         07/704,869                       07/21/92
5,131,392                         07/479,415                       07/21/92
5,131,397                         07/579,010                       07/21/92
5,131,405                         07/584,313                       07/21/92
5,131,408                         07/557,117                       07/21/92
5,131,409                         07/681,692                       07/21/92
5,131,411                         07/569,812                       07/21/92
5,131,412                         07/749,894                       07/21/92
5,131,417                         07/791,674                       07/21/92
5,131,418                         07/763,572                       07/21/92
5,131,424                         07/656,550                       07/21/92
5,131,425                         07/755,122                       07/21/92
5,131,428                         07/787,735                       07/21/92
5,131,431                         07/796,589                       07/21/92
5,131,435                         07/687,693                       07/21/92
5,131,436                         07/713,109                       07/21/92
5,131,439                         07/780,430                       07/21/92
5,131,441                         07/496,220                       07/21/92
5,131,449                         07/629,237                       07/21/92
5,131,453                         07/702,148                       07/21/92
5,131,456                         07/724,139                       07/21/92
5,131,461                         07/675,440                       07/21/92
5,131,462                         07/571,636                       07/21/92
5,131,464                         07/710,621                       07/21/92
5,131,466                         07/745,423                       07/21/92
5,131,483                         07/647,455                       07/21/92
5,131,485                         07/598,029                       07/21/92
5,131,488                         07/303,093                       07/21/92
5,131,489                         07/683,306                       07/21/92
5,131,490                         07/569,054                       07/21/92
5,131,493                         07/603,712                       07/21/92
5,131,494                         07/749,682                       07/21/92
5,131,495                         07/565,966                       07/21/92
5,131,504                         07/674,289                       07/21/92
5,131,514                         07/460,058                       07/21/92
5,131,515                         07/687,941                       07/21/92
5,131,519                         07/775,577                       07/21/92
5,131,520                         07/790,792                       07/21/92
5,131,521                         07/756,391                       07/21/92
5,131,543                         07/771,135                       07/21/92
5,131,552                         07/379,637                       07/21/92
5,131,555                         07/790,520                       07/21/92
5,131,557                         07/749,690                       07/21/92
5,131,558                         07/602,216                       07/21/92
5,131,566                         07/592,168                       07/21/92
5,131,567                         07/607,469                       07/21/92
5,131,571                         07/636,897                       07/21/92
5,131,576                         07/583,212                       07/21/92
5,131,581                         07/768,462                       07/21/92
5,131,587                         07/787,230                       07/21/92
5,131,591                         07/399,861                       07/21/92
5,131,593                         07/578,740                       07/21/92
5,131,597                         07/711,136                       07/21/92
5,131,600                         07/567,214                       07/21/92
5,131,610                         07/726,573                       07/21/92
5,131,614                         07/698,495                       07/21/92
5,131,618                         07/653,907                       07/21/92
5,131,621                         07/716,897                       07/21/92
5,131,626                         07/800,096                       07/21/92
5,131,630                         07/761,302                       07/21/92
5,131,632                         07/783,199                       07/21/92
5,131,639                         07/633,988                       07/21/92
5,131,647                         07/682,584                       07/21/92
5,131,651                         07/703,867                       07/21/92
5,131,652                         07/645,811                       07/21/92
5,131,654                         07/739,877                       07/21/92
5,131,660                         07/627,594                       07/21/92
5,131,663                         07/692,628                       07/21/92
5,131,664                         07/619,487                       07/21/92
5,131,671                         07/648,979                       07/21/92
5,131,674                         07/588,848                       07/21/92
5,131,681                         07/722,167                       07/21/92
5,131,687                         07/526,834                       07/21/92
5,131,697                         07/744,121                       07/21/92
5,131,700                         07/668,189                       07/21/92
5,131,703                         07/766,120                       07/21/92
5,131,707                         07/735,080                       07/21/92
5,131,718                         07/648,813                       07/21/92
5,131,721                         07/635,943                       07/21/92
5,131,723                         07/716,100                       07/21/92
5,131,731                         07/647,304                       07/21/92
5,131,736                         07/530,673                       07/21/92
5,131,741                         07/804,781                       07/21/92
5,131,747                         07/566,446                       07/21/92
5,131,752                         07/545,997                       07/21/92
5,131,754                         07/401,806                       07/21/92
5,131,757                         07/666,137                       07/21/92
5,131,758                         07/768,094                       07/21/92
5,131,760                         07/548,482                       07/21/92
5,131,762                         07/724,814                       07/21/92
5,131,764                         07/612,784                       07/21/92
5,131,766                         07/599,725                       07/21/92
5,131,775                         07/739,685                       07/21/92
5,131,783                         07/404,275                       07/21/92
5,131,788                         07/590,306                       07/21/92
5,131,794                         07/724,546                       07/21/92
5,131,805                         07/688,655                       07/21/92
5,131,806                         07/593,332                       07/21/92
5,131,819                         07/601,684                       07/21/92
5,131,824                         07/651,473                       07/21/92
5,131,827                         07/607,774                       07/21/92
5,131,828                         07/675,641                       07/21/92
5,131,831                         07/635,125                       07/21/92
5,131,835                         07/633,669                       07/21/92
5,131,847                         07/682,572                       07/21/92
5,131,853                         07/744,095                       07/21/92
5,131,857                         07/760,664                       07/21/92
5,131,866                         07/815,549                       07/21/92
5,131,867                         07/774,405                       07/21/92
5,131,872                         07/673,861                       07/21/92
5,131,874                         07/718,549                       07/21/92
5,131,876                         07/510,857                       07/21/92
5,131,880                         07/690,872                       07/21/92
5,131,881                         07/644,575                       07/21/92
5,131,884                         07/676,284                       07/21/92
5,131,885                         07/671,970                       07/21/92
5,131,887                         07/675,087                       07/21/92
5,131,891                         07/650,305                       07/21/92
5,131,895                         07/478,615                       07/21/92
5,131,901                         07/723,574                       07/21/92
5,131,902                         07/755,939                       07/21/92
5,131,906                         07/583,239                       07/21/92
5,131,918                         07/626,802                       07/21/92
5,131,921                         07/594,250                       07/21/92
5,131,922                         07/772,153                       07/21/92
5,131,927                         07/688,327                       07/21/92
5,131,928                         07/667,947                       07/21/92
5,131,931                         07/783,928                       07/21/92
5,131,932                         07/580,954                       07/21/92
5,131,934                         07/766,294                       07/21/92
5,131,942                         07/518,333                       07/21/92
5,131,955                         07/640,760                       07/21/92
5,131,957                         07/676,140                       07/21/92
5,131,961                         07/413,173                       07/21/92
5,131,962                         07/719,504                       07/21/92
5,131,966                         07/711,678                       07/21/92
5,131,970                         07/488,582                       07/21/92
5,131,979                         07/703,368                       07/21/92
5,131,985                         07/709,615                       07/21/92
5,131,986                         07/620,714                       07/21/92
5,131,989                         07/703,437                       07/21/92
5,131,991                         07/708,797                       07/21/92
5,131,993                         07/566,872                       07/21/92
5,131,998                         07/612,662                       07/21/92
5,132,003                         07/601,780                       07/21/92
5,132,005                         07/631,515                       07/21/92
5,132,010                         07/533,145                       07/21/92
5,132,011                         07/739,482                       07/21/92
5,132,019                         07/674,903                       07/21/92
5,132,020                         07/776,950                       07/21/92
5,132,021                         07/689,367                       07/21/92
5,132,030                         07/459,692                       07/21/92
5,132,032                         07/663,463                       07/21/92
5,132,033                         07/607,960                       07/21/92
5,132,041                         07/061,072                       07/21/92
5,132,043                         07/812,984                       07/21/92
5,132,045                         07/323,794                       07/21/92
5,132,047                         07/650,994                       07/21/92
5,132,050                         07/528,517                       07/21/92
5,132,051                         07/315,630                       07/21/92
5,132,053                         07/656,126                       07/21/92
5,132,060                         07/570,102                       07/21/92
5,132,064                         07/581,253                       07/21/92
5,132,070                         07/568,793                       07/21/92
5,132,075                         07/475,962                       07/21/92
5,132,083                         07/467,631                       07/21/92
5,132,087                         07/421,639                       07/21/92
5,132,089                         07/648,892                       07/21/92
5,132,090                         07/521,830                       07/21/92
5,132,092                         07/467,943                       07/21/92
5,132,099                         07/763,166                       07/21/92
5,132,104                         07/555,623                       07/21/92
5,132,105                         07/576,581                       07/21/92
5,132,107                         07/590,050                       07/21/92
5,132,110                         07/525,753                       07/21/92
5,132,130                         07/678,568                       07/21/92
5,132,131                         07/682,989                       07/21/92
5,132,133                         07/758,139                       07/21/92
5,132,138                         07/753,405                       07/21/92
5,132,141                         07/556,334                       07/21/92
5,132,153                         07/456,645                       07/21/92
5,132,154                         07/531,230                       07/21/92
5,132,157                         07/525,726                       07/21/92
5,132,165                         07/540,157                       07/21/92
5,132,166                         07/622,123                       07/21/92
5,132,172                         07/406,810                       07/21/92
5,132,175                         07/541,921                       07/21/92
5,132,186                         07/678,423                       07/21/92
5,132,189                         07/577,106                       07/21/92
5,132,190                         07/505,273                       07/21/92
5,132,191                         07/603,648                       07/21/92
5,132,192                         07/607,937                       07/21/92
5,132,195                         07/752,930                       07/21/92
5,132,199                         07/558,239                       07/21/92
5,132,202                         07/575,419                       07/21/92
5,132,211                         07/566,391                       07/21/92
5,132,218                         07/467,506                       07/21/92
5,132,220                         07/373,977                       07/21/92
5,132,221                         07/350,662                       07/21/92
5,132,224                         07/371,241                       07/21/92
5,132,232                         07/072,424                       07/21/92
5,132,233                         07/322,813                       07/21/92
5,132,242                         07/434,892                       07/21/92
5,132,247                         07/589,921                       07/21/92
5,132,252                         07/343,456                       07/21/92
5,132,255                         07/527,698                       07/21/92
5,132,256                         07/674,891                       07/21/92
5,132,260                         07/477,857                       07/21/92
5,132,264                         07/723,871                       07/21/92
5,132,272                         07/648,268                       07/21/92
5,132,279                         07/571,299                       07/21/92
5,132,284                         07/452,456                       07/21/92
5,132,285                         07/455,854                       07/21/92
5,132,291                         07/301,454                       07/21/92
5,132,301                         07/471,320                       07/21/92
5,132,304                         07/560,125                       07/21/92
5,132,309                         07/566,279                       07/21/92
5,132,312                         07/618,754                       07/21/92
5,132,314                         07/783,433                       07/21/92
5,132,316                         07/573,641                       07/21/92
5,132,328                         07/454,919                       07/21/92
5,132,330                         07/793,903                       07/21/92
5,132,335                         07/653,397                       07/21/92
5,132,338                         07/477,770                       07/21/92
5,132,342                         07/685,909                       07/21/92
5,132,343                         07/594,023                       07/21/92
5,132,366                         07/470,142                       07/21/92
5,132,376                         07/630,673                       07/21/92
5,132,383                         07/456,339                       07/21/92
5,132,388                         07/546,366                       07/21/92
5,132,393                         07/708,167                       07/21/92
5,132,397                         07/679,231                       07/21/92
5,132,411                         07/495,517                       07/21/92
5,132,412                         07/407,748                       07/21/92
5,132,413                         07/588,060                       07/21/92
5,132,420                         07/596,145                       07/21/92
5,132,421                         07/594,213                       07/21/92
5,132,422                         07/594,510                       07/21/92
5,132,426                         07/702,982                       07/21/92
5,132,427                         07/600,727                       07/21/92
5,132,437                         07/654,842                       07/21/92
5,132,439                         07/615,078                       07/21/92
5,132,449                         07/569,559                       07/21/92
5,132,455                         07/642,188                       07/21/92
5,132,458                         07/560,433                       07/21/92
5,132,462                         07/666,178                       07/21/92
5,132,466                         07/688,474                       07/21/92
5,132,472                         07/599,185                       07/21/92
5,132,474                         07/812,841                       07/21/92
5,132,478                         07/629,946                       07/21/92
5,132,481                         07/545,948                       07/21/92
5,132,486                         07/594,017                       07/21/92
5,132,491                         07/670,084                       07/21/92
5,132,499                         07/453,007                       07/21/92
5,132,503                         07/635,695                       07/21/92
5,132,505                         07/664,073                       07/21/92
5,132,509                         07/658,718                       07/21/92
5,132,516                         07/579,553                       07/21/92
5,132,518                         07/654,294                       07/21/92
5,132,520                         07/714,649                       07/21/92
5,132,528                         07/698,981                       07/21/92
5,132,529                         07/571,358                       07/21/92
5,132,530                         07/762,556                       07/21/92
5,132,534                         07/631,312                       07/21/92
5,132,542                         07/652,970                       07/21/92
5,132,562                         07/724,144                       07/21/92
5,132,566                         07/557,990                       07/21/92
5,132,578                         07/482,789                       07/21/92
5,132,582                         07/493,544                       07/21/92
5,132,583                         07/409,756                       07/21/92
5,132,586                         07/680,864                       07/21/92
5,132,589                         07/750,524                       07/21/92
5,132,594                         07/600,249                       07/21/92
5,132,601                         07/684,671                       07/21/92
5,132,612                         07/669,254                       07/21/92
5,132,613                         07/620,973                       07/21/92
5,132,625                         07/591,625                       07/21/92
5,132,628                         07/491,166                       07/21/92
5,132,647                         07/595,478                       07/21/92
5,132,657                         07/654,500                       07/21/92
5,132,659                         07/547,860                       07/21/92
5,132,665                         07/545,512                       07/21/92
5,132,674                         07/363,431                       07/21/92
5,132,677                         07/465,690                       07/21/92
5,132,683                         06/653,356                       07/21/92
5,132,697                         07/745,963                       07/21/92
5,132,698                         07/750,144                       07/21/92
5,132,704                         07/647,368                       07/21/92
5,132,714                         07/577,288                       07/21/92
5,132,717                         07/638,126                       07/21/92
5,132,725                         07/759,879                       07/21/92
5,132,743                         07/546,287                       07/21/92
5,132,746                         07/637,397                       07/21/92
5,132,748                         07/682,109                       07/21/92
5,132,752                         07/658,463                       07/21/92
5,132,765                         07/648,797                       07/21/92
5,132,768                         07/631,252                       07/21/92
5,132,773                         07/651,686                       07/21/92
5,132,776                         07/668,794                       07/21/92
5,132,778                         07/583,751                       07/21/92
5,132,779                         07/641,499                       07/21/92
5,132,791                         07/587,870                       07/21/92
5,132,814                         07/647,131                       07/21/92
5,132,821                         07/558,725                       07/21/92
5,132,835                         07/562,175                       07/21/92
5,132,843                         07/491,095                       07/21/92
5,132,844                         07/793,179                       07/21/92
5,132,857                         07/576,520                       07/21/92
5,132,858                         07/790,108                       07/21/92
5,132,859                         07/571,944                       07/21/92
5,132,862                         07/620,757                       07/21/92
5,132,864                         07/675,000                       07/21/92
5,132,865                         07/579,583                       07/21/92
5,132,871                         07/405,697                       07/21/92
5,132,872                         07/600,704                       07/21/92
5,132,873                         07/663,062                       07/21/92
5,132,875                         07/605,263                       07/21/92
5,132,877                         07/548,392                       07/21/92
5,132,892                         07/307,182                       07/21/92
5,132,893                         07/735,976                       07/21/92
5,132,897                         07/594,822                       07/21/92
5,132,901                         07/498,737                       07/21/92
5,132,913                         07/445,622                       07/21/92
5,132,915                         07/428,864                       07/21/92
5,132,916                         07/526,416                       07/21/92
5,132,919                         07/615,594                       07/21/92
5,132,922                         07/673,261                       07/21/92
5,132,923                         07/484,209                       07/21/92
5,132,926                         07/586,415                       07/21/92
5,132,939                         07/705,192                       07/21/92
5,132,958                         07/595,113                       07/21/92
5,132,968                         07/641,127                       07/21/92
5,132,971                         07/151,886                       07/21/92
5,132,972                         07/443,680                       07/21/92
5,132,974                         07/426,565                       07/21/92
5,132,983                         07/676,514                       07/21/92
5,132,985                         07/725,530                       07/21/92
5,132,988                         07/622,106                       07/21/92
5,132,997                         07/754,908                       07/21/92
5,133,000                         07/663,812                       07/21/92
5,133,007                         07/543,432                       07/21/92
5,133,008                         07/676,204                       07/21/92
5,133,012                         07/443,485                       07/21/92
5,133,022                         07/651,208                       07/21/92
5,133,031                         07/465,230                       07/21/92
5,133,051                         07/758,477                       07/21/92
5,133,061                         07/596,625                       07/21/92
5,133,063                         07/223,612                       07/21/92
5,133,067                         06/915,407                       07/21/92
5,133,075                         07/286,556                       07/21/92
5,133,077                         07/534,004                       07/21/92

                    PATENTS WHICH EXPIRED ON July 23, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,537,687                         08/137,503                       07/23/96
5,537,688                         08/367,468                       07/23/96
5,537,709                         08/445,131                       07/23/96
5,537,711                         08/435,999                       07/23/96
5,537,717                         08/182,107                       07/23/96
5,537,724                         08/409,930                       07/23/96
5,537,736                         08/337,448                       07/23/96
5,537,747                         08/492,328                       07/23/96
5,537,748                         08/062,989                       07/23/96
5,537,750                         08/440,788                       07/23/96
5,537,756                         08/392,777                       07/23/96
5,537,760                         08/345,720                       07/23/96
5,537,763                         08/395,534                       07/23/96
5,537,764                         08/328,877                       07/23/96
5,537,767                         08/467,949                       07/23/96
5,537,769                         08/370,848                       07/23/96
5,537,771                         08/489,487                       07/23/96
5,537,772                         08/352,913                       07/23/96
5,537,793                         08/396,523                       07/23/96
5,537,806                         08/395,723                       07/23/96
5,537,808                         08/235,558                       07/23/96
5,537,810                         08/355,643                       07/23/96
5,537,825                         08/364,716                       07/23/96
5,537,836                         08/283,033                       07/23/96
5,537,837                         08/401,335                       07/23/96
5,537,844                         08/373,418                       07/23/96
5,537,847                         08/207,823                       07/23/96
5,537,858                         08/245,417                       07/23/96
5,537,872                         08/071,732                       07/23/96
5,537,881                         08/490,806                       07/23/96
5,537,888                         08/323,254                       07/23/96
5,537,893                         08/323,306                       07/23/96
5,537,895                         08/336,925                       07/23/96
5,537,900                         08/392,051                       07/23/96
5,537,903                         08/228,891                       07/23/96
5,537,916                         08/446,570                       07/23/96
5,537,918                         08/562,119                       07/23/96
5,537,923                         08/449,704                       07/23/96
5,537,925                         08/116,711                       07/23/96
5,537,937                         08/076,732                       07/23/96
5,537,942                         08/187,053                       07/23/96
5,537,952                         08/218,432                       07/23/96
5,537,954                         08/236,649                       07/23/96
5,537,955                         08/327,586                       07/23/96
5,537,965                         08/387,910                       07/23/96
5,537,970                         08/229,875                       07/23/96
5,537,974                         08/315,100                       07/23/96
5,537,984                         08/436,376                       07/23/96
5,537,985                         08/455,219                       07/23/96
5,537,987                         08/227,109                       07/23/96
5,537,989                         08/377,186                       07/23/96
5,537,998                         08/276,411                       07/23/96
5,538,011                         08/372,333                       07/23/96
5,538,014                         08/324,699                       07/23/96
5,538,015                         08/375,363                       07/23/96
5,538,025                         08/281,303                       07/23/96
5,538,028                         08/336,041                       07/23/96
5,538,031                         08/578,334                       07/23/96
5,538,034                         08/347,625                       07/23/96
5,538,036                         08/359,517                       07/23/96
5,538,038                         08/142,450                       07/23/96
5,538,040                         08/527,223                       07/23/96
5,538,044                         08/539,162                       07/23/96
5,538,054                         08/202,907                       07/23/96
5,538,055                         08/396,156                       07/23/96
5,538,057                         08/307,928                       07/23/96
5,538,061                         08/224,700                       07/23/96
5,538,065                         08/232,254                       07/23/96
5,538,067                         08/302,776                       07/23/96
5,538,076                         08/358,087                       07/23/96
5,538,081                         08/498,086                       07/23/96
5,538,088                         08/341,356                       07/23/96
5,538,095                         08/489,837                       07/23/96
5,538,097                         08/461,453                       07/23/96
5,538,106                         08/224,435                       07/23/96
5,538,133                         08/256,694                       07/23/96
5,538,136                         08/385,245                       07/23/96
5,538,148                         08/194,906                       07/23/96
5,538,150                         08/381,758                       07/23/96
5,538,156                         08/396,016                       07/23/96
5,538,157                         08/396,017                       07/23/96
5,538,159                         08/334,966                       07/23/96
5,538,163                         08/356,195                       07/23/96
5,538,164                         08/355,534                       07/23/96
5,538,166                         08/355,633                       07/23/96
5,538,170                         08/287,595                       07/23/96
5,538,174                         08/421,406                       07/23/96
5,538,180                         08/426,112                       07/23/96
5,538,182                         08/428,724                       07/23/96
5,538,183                         08/453,243                       07/23/96
5,538,190                         08/429,559                       07/23/96
5,538,196                         08/254,580                       07/23/96
5,538,211                         08/403,281                       07/23/96
5,538,212                         08/265,279                       07/23/96
5,538,213                         08/309,683                       07/23/96
5,538,217                         08/368,972                       07/23/96
5,538,219                         08/358,185                       07/23/96
5,538,221                         08/240,736                       07/23/96
5,538,231                         08/346,719                       07/23/96
5,538,247                         08/557,639                       07/23/96
5,538,256                         08/094,063                       07/23/96
5,538,257                         08/366,552                       07/23/96
5,538,262                         08/512,438                       07/23/96
5,538,267                         08/323,253                       07/23/96
5,538,270                         08/525,124                       07/23/96
5,538,278                         08/259,617                       07/23/96
5,538,279                         08/091,930                       07/23/96
5,538,284                         08/365,746                       07/23/96
5,538,285                         08/183,159                       07/23/96
5,538,295                         08/293,805                       07/23/96
5,538,296                         08/441,931                       07/23/96
5,538,302                         08/320,738                       07/23/96
5,538,303                         08/180,714                       07/23/96
5,538,307                         08/401,146                       07/23/96
5,538,316                         08/341,606                       07/23/96
5,538,318                         08/423,779                       07/23/96
5,538,321                         08/358,808                       07/23/96
5,538,323                         08/385,595                       07/23/96
5,538,324                         08/301,072                       07/23/96
5,538,326                         08/339,004                       07/23/96
5,538,333                         08/389,235                       07/23/96
5,538,334                         08/385,492                       07/23/96
5,538,338                         08/371,521                       07/23/96
5,538,354                         08/318,774                       07/23/96
5,538,357                         08/413,006                       07/23/96
5,538,362                         08/406,841                       07/23/96
5,538,363                         08/395,798                       07/23/96
5,538,364                         08/389,123                       07/23/96
5,538,370                         08/221,785                       07/23/96
5,538,372                         08/026,350                       07/23/96
5,538,378                         08/372,318                       07/23/96
5,538,387                         08/373,762                       07/23/96
5,538,392                         08/194,146                       07/23/96
5,538,398                         08/243,275                       07/23/96
5,538,409                         08/245,432                       07/23/96
5,538,413                         08/235,428                       07/23/96
5,538,419                         08/520,098                       07/23/96
5,538,421                         08/311,883                       07/23/96
5,538,423                         08/158,236                       07/23/96
5,538,438                         08/280,594                       07/23/96
5,538,452                         08/406,563                       07/23/96
5,538,455                         08/491,115                       07/23/96
5,538,456                         08/287,693                       07/23/96
5,538,462                         08/213,319                       07/23/96
5,538,464                         08/290,200                       07/23/96
5,538,467                         08/372,519                       07/23/96
5,538,469                         08/196,143                       07/23/96
5,538,471                         08/340,063                       07/23/96
5,538,476                         08/492,530                       07/23/96
5,538,486                         08/253,970                       07/23/96
5,538,487                         08/373,871                       07/23/96
5,538,489                         08/276,996                       07/23/96
5,538,515                         08/215,996                       07/23/96
5,538,520                         08/217,818                       07/23/96
5,538,523                         08/312,778                       07/23/96
5,538,526                         08/348,541                       07/23/96
5,538,547                         08/229,496                       07/23/96
5,538,580                         08/375,335                       07/23/96
5,538,584                         08/410,813                       07/23/96
5,538,598                         08/115,921                       07/23/96
5,538,609                         08/448,837                       07/23/96
5,538,614                         08/291,770                       07/23/96
5,538,618                         08/260,841                       07/23/96
5,538,623                         08/168,355                       07/23/96
5,538,624                         08/326,982                       07/23/96
5,538,634                         08/430,766                       07/23/96
5,538,643                         08/434,306                       07/23/96
5,538,645                         08/156,108                       07/23/96
5,538,658                         08/187,575                       07/23/96
5,538,660                         08/267,698                       07/23/96
5,538,663                         07/831,740                       07/23/96
5,538,672                         08/453,134                       07/23/96
5,538,683                         08/162,660                       07/23/96
5,538,685                         08/453,999                       07/23/96
5,538,690                         08/220,909                       07/23/96
5,538,711                         08/376,256                       07/23/96
5,538,712                         07/966,183                       07/23/96
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