Notice of Expiration of Patents
                     Due to Failure to Pay Maintenance Fee

   35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required
maintenance fee and any applicable surcharge are not paid in a patent
requiring such payment, the patent will expire at the end of the 4th, 8th
or 12th anniversary of the grant of the patent depending on the first
maintenance fee which was not paid.
   According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.

                   PATENTS WHICH EXPIRED ON October 25, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent Number                  Serial Number                   Issue Date

4,779,305                       06/941,378                       10/25/88
4,779,314                       07/068,336                       10/25/88
4,779,317                       06/926,965                       10/25/88
4,779,327                       07/093,611                       10/25/88
4,779,348                       06/906,955                       10/25/88
4,779,355                       07/109,219                       10/25/88
4,779,357                       07/073,993                       10/25/88
4,779,363                       06/832,699                       10/25/88
4,779,364                       07/079,773                       10/25/88
4,779,370                       07/089,963                       10/25/88
4,779,378                       06/579,351                       10/25/88
4,779,395                       06/901,782                       10/25/88
4,779,409                       06/940,538                       10/25/88
4,779,416                       07/072,770                       10/25/88
4,779,418                       07/015,733                       10/25/88
4,779,419                       06/796,820                       10/25/88
4,779,424                       07/003,010                       10/25/88
4,779,428                       07/105,847                       10/25/88
4,779,429                       07/036,115                       10/25/88
4,779,436                       06/877,431                       10/25/88
4,779,443                       07/069,077                       10/25/88
4,779,446                       07/107,939                       10/25/88
4,779,450                       07/161,390                       10/25/88
4,779,453                       07/122,126                       10/25/88
4,779,454                       07/119,789                       10/25/88
4,779,456                       07/034,927                       10/25/88
4,779,470                       07/083,187                       10/25/88
4,779,471                       07/030,762                       10/25/88
4,779,472                       06/925,757                       10/25/88
4,779,477                       07/099,077                       10/25/88
4,779,497                       07/006,193                       10/25/88
4,779,500                       06/909,497                       10/25/88
4,779,510                       07/123,358                       10/25/88
4,779,512                       07/037,734                       10/25/88
4,779,526                       07/138,248                       10/25/88
4,779,531                       07/085,016                       10/25/88
4,779,536                       07/016,382                       10/25/88
4,779,538                       07/133,906                       10/25/88
4,779,552                       07/009,383                       10/25/88
4,779,555                       07/049,220                       10/25/88
4,779,559                       06/901,728                       10/25/88
4,779,562                       07/025,253                       10/25/88
4,779,563                       06/932,595                       10/25/88
4,779,571                       06/882,388                       10/25/88
4,779,578                       06/944,807                       10/25/88
4,779,583                       06/946,310                       10/25/88
4,779,584                       07/017,851                       10/25/88
4,779,591                       06/887,108                       10/25/88
4,779,592                       07/128,216                       10/25/88
4,779,593                       06/837,697                       10/25/88
4,779,595                       06/943,113                       10/25/88
4,779,599                       06/703,423                       10/25/88
4,779,605                       07/097,952                       10/25/88
4,779,620                       06/865,998                       10/25/88
4,779,634                       07/077,483                       10/25/88
4,779,639                       07/066,623                       10/25/88
4,779,644                       06/880,404                       10/25/88
4,779,659                       07/043,390                       10/25/88
4,779,670                       07/083,254                       10/25/88
4,779,671                       07/058,314                       10/25/88
4,779,676                       06/870,970                       10/25/88
4,779,680                       07/050,609                       10/25/88
4,779,682                       07/026,724                       10/25/88
4,779,686                       06/849,372                       10/25/88
4,779,689                       07/101,426                       10/25/88
4,779,693                       07/120,954                       10/25/88
4,779,707                       06/891,532                       10/25/88
4,779,711                       07/060,186                       10/25/88
4,779,725                       07/020,961                       10/25/88
4,779,727                       07/125,580                       10/25/88
4,779,735                       07/060,781                       10/25/88
4,779,739                       06/327,340                       10/25/88
4,779,744                       07/140,966                       10/25/88
4,779,745                       07/098,706                       10/25/88
4,779,756                       07/037,939                       10/25/88
4,779,757                       07/088,420                       10/25/88
4,779,761                       07/024,933                       10/25/88
4,779,763                       07/088,509                       10/25/88
4,779,773                       07/141,050                       10/25/88
4,779,781                       06/936,232                       10/25/88
4,779,792                       07/156,588                       10/25/88
4,779,794                       07/120,236                       10/25/88
4,779,808                       06/648,623                       10/25/88
4,779,816                       06/918,309                       10/25/88
4,779,835                       06/903,562                       10/25/88
4,779,841                       06/883,699                       10/25/88
4,779,846                       07/052,755                       10/25/88
4,779,852                       07/086,359                       10/25/88
4,779,853                       07/090,398                       10/25/88
4,779,857                       07/014,177                       10/25/88
4,779,866                       07/060,686                       10/25/88
4,779,869                       06/905,410                       10/25/88
4,779,870                       07/022,951                       10/25/88
4,779,884                       07/039,305                       10/25/88
4,779,887                       07/134,090                       10/25/88
4,779,889                       07/002,791                       10/25/88
4,779,901                       07/005,397                       10/25/88
4,779,906                       07/072,743                       10/25/88
4,779,922                       06/934,970                       10/25/88
4,779,926                       06/934,859                       10/25/88
4,779,928                       07/092,405                       10/25/88
4,779,930                       07/097,833                       10/25/88
4,779,934                       07/059,122                       10/25/88
4,779,939                       07/028,177                       10/25/88
4,779,954                       07/065,108                       10/25/88
4,779,956                       06/861,578                       10/25/88
4,779,959                       07/093,038                       10/25/88
4,779,965                       06/583,994                       10/25/88
4,779,966                       06/684,760                       10/25/88
4,779,982                       06/796,808                       10/25/88
4,779,996                       07/003,920                       10/25/88
4,779,998                       06/912,960                       10/25/88
4,780,002                       07/004,557                       10/25/88
4,780,004                       07/054,632                       10/25/88
4,780,006                       07/080,135                       10/25/88
4,780,007                       07/067,757                       10/25/88
4,780,013                       06/854,164                       10/25/88
4,780,035                       07/076,576                       10/25/88
4,780,040                       07/131,756                       10/25/88
4,780,043                       06/917,161                       10/25/88
4,780,045                       07/117,988                       10/25/88
4,780,046                       07/073,602                       10/25/88
4,780,052                       07/091,875                       10/25/88
4,780,054                       07/054,502                       10/25/88
4,780,066                       07/051,912                       10/25/88
4,780,067                       07/101,445                       10/25/88
4,780,070                       07/054,579                       10/25/88
4,780,071                       07/172,318                       10/25/88
4,780,076                       06/936,249                       10/25/88
4,780,079                       06/900,081                       10/25/88
4,780,088                       07/086,425                       10/25/88
4,780,089                       07/076,268                       10/25/88
4,780,092                       07/094,951                       10/25/88
4,780,103                       07/017,401                       10/25/88
4,780,104                       07/017,054                       10/25/88
4,780,105                       07/038,513                       10/25/88
4,780,107                       07/151,580                       10/25/88
4,780,108                       07/157,095                       10/25/88
4,780,110                       07/073,218                       10/25/88
4,780,111                       06/796,360                       10/25/88
4,780,140                       07/111,340                       10/25/88
4,780,144                       06/928,254                       10/25/88
4,780,145                       07/139,091                       10/25/88
4,780,148                       07/148,304                       10/25/88
4,780,151                       06/733,736                       10/25/88
4,780,154                       07/024,855                       10/25/88
4,780,158                       07/051,807                       10/25/88
4,780,160                       07/083,324                       10/25/88
4,780,161                       07/125,846                       10/25/88
4,780,163                       07/081,514                       10/25/88
4,780,174                       06/938,440                       10/25/88
4,780,181                       07/081,521                       10/25/88
4,780,198                       07/008,338                       10/25/88
4,780,203                       07/117,030                       10/25/88
4,780,205                       06/887,161                       10/25/88
4,780,208                       06/902,418                       10/25/88
4,780,210                       07/001,175                       10/25/88
4,780,214                       07/099,732                       10/25/88
4,780,222                       07/013,762                       10/25/88
4,780,227                       07/051,158                       10/25/88
4,780,229                       07/122,476                       10/25/88
4,780,230                       07/036,950                       10/25/88
4,780,234                       07/122,632                       10/25/88
4,780,235                       07/039,117                       10/25/88
4,780,241                       07/124,588                       10/25/88
4,780,248                       07/012,133                       10/25/88
4,780,250                       06/924,170                       10/25/88
4,780,251                       06/922,430                       10/25/88
4,780,260                       07/095,795                       10/25/88
4,780,263                       07/066,011                       10/25/88
4,780,268                       06/620,226                       10/25/88
4,780,275                       07/022,908                       10/25/88
4,780,279                       07/038,301                       10/25/88
4,780,281                       06/744,673                       10/25/88
4,780,282                       06/905,683                       10/25/88
4,780,288                       07/037,885                       10/25/88
4,780,293                       06/936,380                       10/25/88
4,780,297                       07/034,991                       10/25/88
4,780,299                       07/123,874                       10/25/88
4,780,304                       07/013,020                       10/25/88
4,780,314                       06/792,918                       10/25/88
4,780,318                       06/690,197                       10/25/88
4,780,320                       06/856,961                       10/25/88
4,780,326                       07/044,931                       10/25/88
4,780,338                       07/030,955                       10/25/88
4,780,343                       07/082,077                       10/25/88
4,780,346                       07/035,659                       10/25/88
4,780,359                       07/158,471                       10/25/88
4,780,361                       07/091,200                       10/25/88
4,780,366                       06/902,055                       10/25/88
4,780,368                       06/825,946                       10/25/88
4,780,371                       06/832,195                       10/25/88
4,780,372                       06/873,069                       10/25/88
4,780,373                       06/934,652                       10/25/88
4,780,379                       07/106,731                       10/25/88
4,780,381                       07/116,937                       10/25/88
4,780,392                       06/762,010                       10/25/88
4,780,393                       07/005,949                       10/25/88
4,780,394                       06/865,338                       10/25/88
4,780,395                       07/007,087                       10/25/88
4,780,397                       06/897,373                       10/25/88
4,780,398                       06/901,691                       10/25/88
4,780,401                       06/717,738                       10/25/88
4,780,409                       06/854,831                       10/25/88
4,780,413                       06/769,670                       10/25/88
4,780,422                       07/008,369                       10/25/88
4,780,432                       06/902,985                       10/25/88
4,780,444                       06/606,497                       10/25/88
4,780,451                       07/006,372                       10/25/88
4,780,456                       07/027,036                       10/25/88
4,780,461                       06/810,148                       10/25/88
4,780,462                       07/070,414                       10/25/88
4,780,466                       07/169,550                       10/25/88
4,780,475                       06/945,429                       10/25/88
4,780,482                       07/045,623                       10/25/88
4,780,484                       07/148,706                       10/25/88
4,780,488                       07/058,496                       10/25/88
4,780,496                       07/073,595                       10/25/88
4,780,503                       06/898,191                       10/25/88
4,780,505                       06/768,155                       10/25/88
4,780,506                       07/039,564                       10/25/88
4,780,512                       07/107,286                       10/25/88
4,780,518                       07/017,845                       10/25/88
4,780,519                       07/129,253                       10/25/88
4,780,521                       07/134,711                       10/25/88
4,780,530                       06/763,791                       10/25/88
4,780,536                       06/904,129                       10/25/88
4,780,539                       07/143,364                       10/25/88
4,780,545                       06/931,849                       10/25/88
4,780,549                       07/149,895                       10/25/88
4,780,554                       06/741,832                       10/25/88
4,780,563                       07/109,974                       10/25/88
4,780,571                       07/058,950                       10/25/88
4,780,582                       07/013,224                       10/25/88
4,780,589                       07/053,375                       10/25/88
4,780,591                       07/021,958                       10/25/88
4,780,596                       07/026,997                       10/25/88
4,780,604                       07/015,613                       10/25/88
4,780,606                       07/100,227                       10/25/88
4,780,607                       07/088,777                       10/25/88
4,780,620                       07/065,368                       10/25/88
4,780,623                       07/153,682                       10/25/88
4,780,626                       07/031,727                       10/25/88
4,780,629                       06/908,771                       10/25/88
4,780,637                       07/065,118                       10/25/88
4,780,638                       07/062,834                       10/25/88
4,780,639                       07/052,828                       10/25/88
4,780,642                       07/021,124                       10/25/88
4,780,652                       06/940,761                       10/25/88
4,780,660                       07/101,021                       10/25/88
4,780,663                       06/844,969                       10/25/88
4,780,666                       07/081,256                       10/25/88
4,780,672                       07/044,914                       10/25/88
4,780,677                       07/044,701                       10/25/88
4,780,685                       07/027,927                       10/25/88
4,780,687                       07/057,560                       10/25/88
4,780,691                       07/081,259                       10/25/88
4,780,708                       06/805,901                       10/25/88
4,780,711                       06/722,856                       10/25/88
4,780,714                       06/888,234                       10/25/88
4,780,725                       07/014,715                       10/25/88
4,780,726                       06/677,259                       10/25/88
4,780,732                       07/171,364                       10/25/88
4,780,754                       07/096,701                       10/25/88
4,780,760                       07/058,317                       10/25/88
4,780,775                       06/768,390                       10/25/88
4,780,776                       07/040,660                       10/25/88
4,780,785                       07/057,249                       10/25/88
4,780,787                       07/076,833                       10/25/88
4,780,789                       06/865,102                       10/25/88
4,780,794                       07/082,908                       10/25/88
4,780,798                       06/849,267                       10/25/88
4,780,799                       07/068,560                       10/25/88
4,780,802                       07/030,596                       10/25/88
4,780,804                       07/134,557                       10/25/88
4,780,810                       06/737,453                       10/25/88
4,780,815                       07/016,519                       10/25/88
4,780,820                       07/022,499                       10/25/88
4,780,827                       06/839,933                       10/25/88
4,780,840                       07/020,213                       10/25/88
4,780,847                       06/898,599                       10/25/88
4,780,856                       06/924,734                       10/25/88
4,780,861                       07/012,758                       10/25/88
4,780,866                       07/171,329                       10/25/88
4,780,875                       06/893,772                       10/25/88
4,780,883                       06/878,765                       10/25/88
4,780,888                       06/908,610                       10/25/88
4,780,889                       07/097,136                       10/25/88
4,780,896                       07/012,513                       10/25/88
4,780,899                       06/852,051                       10/25/88
4,780,901                       07/113,487                       10/25/88
4,780,907                       06/940,284                       10/25/88
4,780,908                       06/874,327                       10/25/88<ql

                   PATENTS WHICH EXPIRED ON October 20, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,155,868                       07/687,732                       10/20/92
5,155,873                       07/568,702                       10/20/92
5,155,878                       07/684,776                       10/20/92
5,155,880                       07/878,381                       10/20/92
5,155,881                       07/809,879                       10/20/92
5,155,885                       07/416,829                       10/20/92
5,155,886                       07/728,548                       10/20/92
5,155,893                       07/768,371                       10/20/92
5,155,896                       07/747,331                       10/20/92
5,155,897                       07/711,550                       10/20/92
5,155,912                       07/700,971                       10/20/92
5,155,915                       07/660,407                       10/20/92
5,155,916                       07/673,083                       10/20/92
5,155,917                       07/698,405                       10/20/92
5,155,918                       07/792,469                       10/20/92
5,155,923                       07/691,433                       10/20/92
5,155,929                       07/878,528                       10/20/92
5,155,934                       07/570,104                       10/20/92
5,155,935                       07/748,454                       10/20/92
5,155,936                       07/703,244                       10/20/92
5,155,939                       07/726,383                       10/20/92
5,155,944                       07/700,074                       10/20/92
5,155,950                       07/660,207                       10/20/92
5,155,951                       07/711,451                       10/20/92
5,155,954                       07/833,042                       10/20/92
5,155,958                       07/778,408                       10/20/92
5,155,965                       07/613,556                       10/20/92
5,155,972                       07/864,370                       10/20/92
5,155,974                       07/499,644                       10/20/92
5,155,975                       07/707,500                       10/20/92
5,155,977                       07/734,546                       10/20/92
5,155,979                       07/740,094                       10/20/92
5,155,981                       07/707,574                       10/20/92
5,155,988                       07/830,598                       10/20/92
5,155,997                       07/613,616                       10/20/92
5,155,998                       07/455,944                       10/20/92
5,155,999                       07/697,338                       10/20/92
5,156,005                       07/705,660                       10/20/92
5,156,012                       07/808,766                       10/20/92
5,156,015                       07/631,239                       10/20/92
5,156,016                       07/829,814                       10/20/92
5,156,022                       07/720,944                       10/20/92
5,156,025                       07/769,545                       10/20/92
5,156,028                       07/681,605                       10/20/92
5,156,031                       07/590,128                       10/20/92
5,156,035                       07/510,745                       10/20/92
5,156,037                       07/684,540                       10/20/92
5,156,050                       07/672,693                       10/20/92
5,156,053                       07/656,060                       10/20/92
5,156,055                       07/602,495                       10/20/92
5,156,058                       07/596,780                       10/20/92
5,156,064                       07/703,551                       10/20/92
5,156,065                       07/749,340                       10/20/92
5,156,066                       07/584,242                       10/20/92
5,156,067                       07/737,606                       10/20/92
5,156,068                       07/682,195                       10/20/92
5,156,070                       07/527,395                       10/20/92
5,156,071                       07/751,323                       10/20/92
5,156,079                       07/533,482                       10/20/92
5,156,081                       07/631,812                       10/20/92
5,156,083                       07/502,476                       10/20/92
5,156,087                       07/830,592                       10/20/92
5,156,088                       07/695,640                       10/20/92
5,156,094                       07/732,339                       10/20/92
5,156,098                       07/817,359                       10/20/92
5,156,100                       07/720,478                       10/20/92
5,156,113                       07/808,471                       10/20/92
5,156,116                       07/807,589                       10/20/92
5,156,118                       07/576,421                       10/20/92
5,156,119                       07/734,137                       10/20/92
5,156,135                       07/844,214                       10/20/92
5,156,139                       07/588,053                       10/20/92
5,156,140                       07/671,337                       10/20/92
5,156,143                       07/599,627                       10/20/92
5,156,145                       07/272,978                       10/20/92
5,156,158                       07/528,980                       10/20/92
5,156,160                       07/542,324                       10/20/92
5,156,164                       07/650,985                       10/20/92
5,156,167                       07/626,620                       10/20/92
5,156,181                       07/733,574                       10/20/92
5,156,187                       07/823,774                       10/20/92
5,156,189                       07/406,949                       10/20/92
5,156,198                       07/657,859                       10/20/92
5,156,207                       07/700,994                       10/20/92
5,156,227                       07/572,842                       10/20/92
5,156,230                       07/631,651                       10/20/92
5,156,234                       07/761,470                       10/20/92
5,156,238                       07/793,167                       10/20/92
5,156,242                       07/798,942                       10/20/92
5,156,253                       07/673,296                       10/20/92
5,156,254                       07/827,532                       10/20/92
5,156,259                       07/708,701                       10/20/92
5,156,271                       07/785,446                       10/20/92
5,156,274                       07/813,108                       10/20/92
5,156,276                       07/772,565                       10/20/92
5,156,279                       07/675,071                       10/20/92
5,156,281                       07/673,889                       10/20/92
5,156,287                       07/756,740                       10/20/92
5,156,289                       07/750,739                       10/20/92
5,156,300                       07/787,693                       10/20/92
5,156,307                       07/673,534                       10/20/92
5,156,309                       07/652,230                       10/20/92
5,156,310                       07/739,335                       10/20/92
5,156,312                       07/459,343                       10/20/92
5,156,314                       07/701,029                       10/20/92
5,156,318                       07/777,075                       10/20/92
5,156,322                       07/713,588                       10/20/92
5,156,325                       07/630,811                       10/20/92
5,156,327                       07/680,505                       10/20/92
5,156,352                       07/639,659                       10/20/92
5,156,355                       07/548,255                       10/20/92
5,156,362                       07/708,330                       10/20/92
5,156,363                       07/661,940                       10/20/92
5,156,364                       07/604,687                       10/20/92
5,156,370                       07/664,194                       10/20/92
5,156,381                       07/671,082                       10/20/92
5,156,382                       07/773,123                       10/20/92
5,156,395                       07/811,115                       10/20/92
5,156,398                       07/833,352                       10/20/92
5,156,402                       07/699,328                       10/20/92
5,156,412                       07/652,786                       10/20/92
5,156,415                       07/766,643                       10/20/92
5,156,419                       07/699,356                       10/20/92
5,156,422                       07/820,788                       10/20/92
5,156,423                       07/712,023                       10/20/92
5,156,426                       07/686,928                       10/20/92
5,156,428                       07/764,768                       10/20/92
5,156,430                       07/810,123                       10/20/92
5,156,434                       07/791,919                       10/20/92
5,156,439                       07/744,388                       10/20/92
5,156,443                       07/756,053                       10/20/92
5,156,450                       07/650,919                       10/20/92
5,156,453                       07/659,261                       10/20/92
5,156,463                       07/702,277                       10/20/92
5,156,484                       07/739,171                       10/20/92
5,156,498                       07/678,156                       10/20/92
5,156,501                       07/741,848                       10/20/92
5,156,509                       07/753,903                       10/20/92
5,156,513                       07/770,776                       10/20/92
5,156,519                       07/438,462                       10/20/92
5,156,530                       07/639,198                       10/20/92
5,156,532                       07/707,040                       10/20/92
5,156,533                       06/914,870                       10/20/92
5,156,536                       07/588,371                       10/20/92
5,156,541                       07/696,586                       10/20/92
5,156,544                       07/736,796                       10/20/92
5,156,545                       07/557,776                       10/20/92
5,156,550                       07/775,794                       10/20/92
5,156,553                       07/689,348                       10/20/92
5,156,554                       07/733,503                       10/20/92
5,156,555                       07/746,638                       10/20/92
5,156,566                       07/846,123                       10/20/92
5,156,567                       07/538,575                       10/20/92
5,156,568                       07/841,894                       10/20/92
5,156,572                       07/626,436                       10/20/92
5,156,581                       07/718,950                       10/20/92
5,156,590                       07/719,438                       10/20/92
5,156,597                       07/630,265                       10/20/92
5,156,603                       07/735,680                       10/20/92
5,156,605                       07/713,483                       10/20/92
5,156,611                       07/474,877                       10/20/92
5,156,615                       07/794,736                       10/20/92
5,156,618                       07/797,197                       10/20/92
5,156,620                       07/649,974                       10/20/92
5,156,622                       07/371,538                       10/20/92
5,156,630                       07/697,884                       10/20/92
5,156,637                       07/664,358                       10/20/92
5,156,639                       07/793,915                       10/20/92
5,156,642                       07/745,745                       10/20/92
5,156,643                       07/800,055                       10/20/92
5,156,646                       07/699,388                       10/20/92
5,156,651                       07/564,710                       10/20/92
5,156,659                       07/681,292                       10/20/92
5,156,660                       07/723,193                       10/20/92
5,156,662                       07/868,425                       10/20/92
5,156,665                       07/637,087                       10/20/92
5,156,670                       07/709,463                       10/20/92
5,156,673                       07/127,976                       10/20/92
5,156,677                       07/883,086                       10/20/92
5,156,682                       07/469,562                       10/20/92
5,156,684                       07/575,945                       10/20/92
5,156,686                       07/621,039                       10/20/92
5,156,690                       07/616,654                       10/20/92
5,156,700                       07/726,667                       10/20/92
5,156,704                       07/531,941                       10/20/92
5,156,710                       07/695,850                       10/20/92
5,156,716                       07/691,914                       10/20/92
5,156,733                       07/749,087                       10/20/92
5,156,735                       07/583,126                       10/20/92
5,156,748                       07/752,509                       10/20/92
5,156,752                       07/728,534                       10/20/92
5,156,759                       07/698,869                       10/20/92
5,156,765                       07/523,886                       10/20/92
5,156,774                       07/482,946                       10/20/92
5,156,778                       07/674,360                       10/20/92
5,156,794                       07/720,673                       10/20/92
5,156,807                       07/769,253                       10/20/92
5,156,810                       07/366,651                       10/20/92
5,156,813                       07/552,434                       10/20/92
5,156,814                       07/622,491                       10/20/92
5,156,818                       07/717,540                       10/20/92
5,156,833                       07/650,070                       10/20/92
5,156,853                       07/762,862                       10/20/92
5,156,859                       07/623,916                       10/20/92
5,156,861                       07/704,335                       10/20/92
5,156,862                       07/682,362                       10/20/92
5,156,868                       07/753,825                       10/20/92
5,156,874                       07/785,414                       10/20/92
5,156,878                       07/635,860                       10/20/92
5,156,888                       07/582,691                       10/20/92
5,156,890                       07/653,030                       10/20/92
5,156,892                       07/554,691                       10/20/92
5,156,895                       07/471,101                       10/20/92
5,156,896                       07/556,777                       10/20/92
5,156,905                       07/620,949                       10/20/92
5,156,916                       07/693,774                       10/20/92
5,156,923                       07/818,634                       10/20/92
5,156,932                       07/694,907                       10/20/92
5,156,937                       07/712,837                       10/20/92
5,156,941                       07/397,609                       10/20/92
5,156,943                       07/520,629                       10/20/92
5,156,955                       07/425,217                       10/20/92
5,156,958                       07/586,347                       10/20/92
5,156,961                       07/601,877                       10/20/92
5,156,962                       07/526,761                       10/20/92
5,156,964                       07/824,694                       10/20/92
5,156,970                       07/228,600                       10/20/92
5,156,971                       07/821,525                       10/20/92
5,156,979                       07/664,825                       10/20/92
5,156,982                       07/817,038                       10/20/92
5,156,995                       07/684,128                       10/20/92
5,157,014                       07/276,379                       10/20/92
5,157,015                       07/528,147                       10/20/92
5,157,016                       07/729,888                       10/20/92
5,157,018                       07/833,033                       10/20/92
5,157,021                       07/630,835                       10/20/92
5,157,029                       07/739,842                       10/20/92
5,157,030                       07/398,413                       10/20/92
5,157,039                       07/633,390                       10/20/92
5,157,052                       07/635,000                       10/20/92
5,157,059                       07/851,693                       10/20/92
5,157,062                       07/769,738                       10/20/92
5,157,068                       07/701,829                       10/20/92
5,157,070                       07/771,870                       10/20/92
5,157,071                       07/774,730                       10/20/92
5,157,075                       07/687,993                       10/20/92
5,157,078                       07/528,375                       10/20/92
5,157,079                       07/668,342                       10/20/92
5,157,085                       07/321,107                       10/20/92
5,157,086                       07/721,830                       10/20/92
5,157,102                       07/763,840                       10/20/92
5,157,103                       07/647,894                       10/20/92
5,157,104                       07/194,642                       10/20/92
5,157,105                       07/701,735                       10/20/92
5,157,106                       07/061,439                       10/20/92
5,157,118                       07/610,595                       10/20/92
5,157,119                       07/838,164                       10/20/92
5,157,133                       07/620,609                       10/20/92
5,157,136                       07/683,275                       10/20/92
5,157,141                       07/616,549                       10/20/92
5,157,142                       06/875,158                       10/20/92
5,157,145                       07/466,445                       10/20/92
5,157,151                       07/629,557                       10/20/92
5,157,154                       07/475,563                       10/20/92
5,157,161                       07/803,834                       10/20/92
5,157,162                       07/783,015                       10/20/92
5,157,164                       07/697,250                       10/20/92
5,157,167                       07/829,131                       10/20/92
5,157,170                       07/805,433                       10/20/92
5,157,174                       07/769,813                       10/20/92
5,157,178                       07/702,488                       10/20/92
5,157,185                       07/402,018                       10/20/92
5,157,191                       07/756,668                       10/20/92
5,157,200                       07/672,682                       10/20/92
5,157,224                       07/531,146                       10/20/92
5,157,227                       07/642,296                       10/20/92
5,157,229                       07/710,534                       10/20/92
5,157,239                       07/524,205                       10/20/92
5,157,247                       07/617,009                       10/20/92
5,157,249                       07/656,727                       10/20/92
5,157,256                       07/742,786                       10/20/92
5,157,272                       07/358,537                       10/20/92
5,157,273                       07/535,104                       10/20/92
5,157,286                       07/484,144                       10/20/92
5,157,289                       07/737,163                       10/20/92
5,157,292                       07/742,446                       10/20/92
5,157,293                       07/762,985                       10/20/92
5,157,303                       07/574,621                       10/20/92
5,157,310                       07/765,312                       10/20/92
5,157,313                       07/501,492                       10/20/92
5,157,317                       07/709,893                       10/20/92
5,157,319                       07/766,756                       10/20/92
5,157,323                       07/575,407                       10/20/92
5,157,324                       07/632,361                       10/20/92
5,157,331                       07/771,698                       10/20/92
5,157,333                       07/668,053                       10/20/92
5,157,338                       07/643,785                       10/20/92
5,157,348                       07/776,914                       10/20/92
5,157,350                       07/786,054                       10/20/92
5,157,357                       07/735,952                       10/20/92
5,157,358                       07/795,351                       10/20/92
5,157,361                       07/698,604                       10/20/92
5,157,363                       07/650,875                       10/20/92
5,157,365                       07/654,719                       10/20/92
5,157,369                       07/788,983                       10/20/92
5,157,373                       07/667,108                       10/20/92
5,157,382                       07/599,648                       10/20/92
5,157,384                       07/344,879                       10/20/92
5,157,393                       07/815,831                       10/20/92
5,157,394                       07/276,134                       10/20/92
5,157,405                       07/786,844                       10/20/92
5,157,407                       07/794,994                       10/20/92
5,157,408                       07/528,807                       10/20/92
5,157,409                       07/741,840                       10/20/92
5,157,410                       07/613,460                       10/20/92
5,157,413                       07/311,824                       10/20/92
5,157,422                       07/450,814                       10/20/92
5,157,427                       07/510,348                       10/20/92
5,157,443                       07/764,286                       10/20/92
5,157,451                       07/677,898                       10/20/92
5,157,464                       07/603,688                       10/20/92
5,157,465                       07/596,130                       10/20/92
5,157,469                       07/685,398                       10/20/92
5,157,471                       07/353,331                       10/20/92
5,157,472                       07/655,743                       10/20/92
5,157,477                       07/642,180                       10/20/92
5,157,480                       07/651,166                       10/20/92
5,157,506                       07/628,346                       10/20/92
5,157,518                       07/465,756                       10/20/92
5,157,521                       07/560,589                       10/20/92
5,157,526                       07/723,964                       10/20/92
5,157,538                       07/546,481                       10/20/92
5,157,540                       07/637,305                       10/20/92
5,157,545                       07/707,540                       10/20/92
5,157,547                       07/604,657                       10/20/92
5,157,560                       07/558,305                       10/20/92
5,157,570                       07/546,280                       10/20/92
5,157,580                       07/495,793                       10/20/92
5,157,581                       07/573,302                       10/20/92
5,157,592                       07/776,946                       10/20/92
5,157,597                       07/571,581                       10/20/92
5,157,601                       07/461,644                       10/20/92
5,157,613                       07/617,546                       10/20/92
5,157,614                       07/605,364                       10/20/92
5,157,615                       07/815,489                       10/20/92
5,157,627                       07/554,313                       10/20/92
5,157,643                       07/366,896                       10/20/92
5,157,647                       07/519,983                       10/20/92
5,157,657                       07/825,305                       10/20/92
5,157,674                       07/722,345                       10/20/92
5,157,677                       07/700,377                       10/20/92
5,157,691                       07/498,672                       10/20/92
5,157,695                       07/149,298                       10/20/92
5,157,696                       07/643,521                       10/20/92
5,157,702                       07/627,844                       10/20/92
5,157,705                       07/591,624                       10/20/92
5,157,711                       07/573,705                       10/20/92
5,157,715                       07/648,490                       10/20/92
5,157,720                       07/475,671                       10/20/92
5,157,727                       07/096,160                       10/20/92
5,157,728                       07/592,001                       10/20/92
5,157,735                       07/393,936                       10/20/92
5,157,745                       07/760,635                       10/20/92
5,157,752                       07/782,198                       10/20/92
5,157,766                       07/484,145                       10/20/92
5,157,771                       07/363,659                       10/20/92
5,157,775                       07/451,398                       10/20/92<ql

                   PATENTS WHICH EXPIRED ON October 22, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,566,389                       08/486,134                       10/22/96
5,566,392                       08/349,674                       10/22/96
5,566,394                       08/233,103                       10/22/96
5,566,396                       08/484,017                       10/22/96
5,566,397                       08/360,272                       10/22/96
5,566,398                       08/404,043                       10/22/96
5,566,401                       08/359,476                       10/22/96
5,566,405                       08/412,824                       10/22/96
5,566,408                       08/572,060                       10/22/96
5,566,409                       08/270,168                       10/22/96
5,566,415                       08/579,338                       10/22/96
5,566,417                       08/380,376                       10/22/96
5,566,426                       08/439,888                       10/22/96
5,566,430                       08/489,161                       10/22/96
5,566,441                       08/209,046                       10/22/96
5,566,443                       08/321,729                       10/22/96
5,566,449                       08/292,691                       10/22/96
5,566,452                       08/396,764                       10/22/96
5,566,453                       08/529,955                       10/22/96
5,566,454                       08/523,291                       10/22/96
5,566,457                       08/295,878                       10/22/96
5,566,459                       08/160,250                       10/22/96
5,566,460                       08/282,056                       10/22/96
5,566,465                       08/384,151                       10/22/96
5,566,473                       08/315,911                       10/22/96
5,566,476                       08/467,073                       10/22/96
5,566,477                       08/225,134                       10/22/96
5,566,480                       08/244,600                       10/22/96
5,566,481                       08/369,236                       10/22/96
5,566,483                       08/295,159                       10/22/96
5,566,485                       08/562,621                       10/22/96
5,566,488                       08/352,366                       10/22/96
5,566,489                       08/440,485                       10/22/96
5,566,490                       08/414,318                       10/22/96
5,566,491                       08/324,964                       10/22/96
5,566,495                       08/515,944                       10/22/96
5,566,500                       08/336,310                       10/22/96
5,566,502                       08/373,616                       10/22/96
5,566,504                       08/416,582                       10/22/96
5,566,505                       08/388,404                       10/22/96
5,566,511                       08/369,894                       10/22/96
5,566,527                       08/447,352                       10/22/96
5,566,540                       08/257,360                       10/22/96
5,566,557                       08/449,708                       10/22/96
5,566,558                       08/511,933                       10/22/96
5,566,559                       08/523,641                       10/22/96
5,566,564                       08/214,832                       10/22/96
5,566,578                       08/444,764                       10/22/96
5,566,584                       08/522,014                       10/22/96
5,566,597                       08/230,103                       10/22/96
5,566,609                       08/562,402                       10/22/96
5,566,623                       08/523,539                       10/22/96
5,566,626                       08/353,670                       10/22/96
5,566,633                       08/174,551                       10/22/96
5,566,634                       08/406,420                       10/22/96
5,566,635                       08/519,333                       10/22/96
5,566,636                       08/391,442                       10/22/96
5,566,641                       08/446,947                       10/22/96
5,566,649                       08/511,369                       10/22/96
5,566,664                       08/433,983                       10/22/96
5,566,667                       08/505,972                       10/22/96
5,566,673                       08/457,373                       10/22/96
5,566,678                       08/369,270                       10/22/96
5,566,682                       08/514,429                       10/22/96
5,566,684                       08/560,278                       10/22/96
5,566,687                       08/529,682                       10/22/96
5,566,692                       08/235,703                       10/22/96
5,566,698                       08/557,560                       10/22/96
5,566,700                       08/567,114                       10/22/96
5,566,702                       08/366,814                       10/22/96
5,566,730                       08/494,341                       10/22/96
5,566,734                       08/393,368                       10/22/96
5,566,737                       08/284,425                       10/22/96
5,566,742                       08/404,431                       10/22/96
5,566,751                       08/446,502                       10/22/96
5,566,767                       08/397,110                       10/22/96
5,566,768                       08/414,029                       10/22/96
5,566,772                       08/410,111                       10/22/96
5,566,778                       08/430,370                       10/22/96
5,566,780                       08/443,731                       10/22/96
5,566,783                       08/370,250                       10/22/96
5,566,788                       08/394,692                       10/22/96
5,566,789                       08/498,937                       10/22/96
5,566,797                       08/213,333                       10/22/96
5,566,800                       08/425,612                       10/22/96
5,566,801                       08/400,222                       10/22/96
5,566,806                       08/317,713                       10/22/96
5,566,809                       08/570,381                       10/22/96
5,566,814                       08/317,540                       10/22/96
5,566,819                       08/430,301                       10/22/96
5,566,820                       08/441,017                       10/22/96
5,566,824                       08/491,967                       10/22/96
5,566,829                       08/488,904                       10/22/96
5,566,831                       08/559,361                       10/22/96
5,566,838                       08/381,764                       10/22/96
5,566,839                       08/336,676                       10/22/96
5,566,843                       08/204,586                       10/22/96
5,566,844                       08/290,496                       10/22/96
5,566,851                       08/179,975                       10/22/96
5,566,856                       07/710,434                       10/22/96
5,566,857                       08/366,624                       10/22/96
5,566,858                       08/212,973                       10/22/96
5,566,859                       08/364,542                       10/22/96
5,566,864                       08/307,736                       10/22/96
5,566,865                       08/359,633                       10/22/96
5,566,870                       08/238,489                       10/22/96
5,566,871                       08/335,466                       10/22/96
5,566,879                       08/161,806                       10/22/96
5,566,893                       08/035,070                       10/22/96
5,566,903                       08/327,787                       10/22/96
5,566,908                       08/380,178                       10/22/96
5,566,915                       08/374,771                       10/22/96
5,566,921                       08/286,974                       10/22/96
5,566,935                       08/621,346                       10/22/96
5,566,939                       08/617,189                       10/22/96
5,566,945                       08/558,291                       10/22/96
5,566,955                       08/244,333                       10/22/96
5,566,957                       08/503,741                       10/22/96
5,566,958                       08/507,088                       10/22/96
5,566,959                       08/190,338                       10/22/96
5,566,960                       08/255,397                       10/22/96
5,566,961                       08/273,335                       10/22/96
5,566,963                       08/507,654                       10/22/96
5,566,965                       08/517,358                       10/22/96
5,566,968                       08/377,106                       10/22/96
5,566,980                       08/267,438                       10/22/96
5,566,981                       08/409,159                       10/22/96
5,566,987                       08/489,518                       10/22/96
5,566,993                       08/248,604                       10/22/96
5,566,997                       08/597,034                       10/22/96
5,567,001                       08/224,259                       10/22/96
5,567,002                       08/297,577                       10/22/96
5,567,006                       08/130,579                       10/22/96
5,567,007                       08/397,476                       10/22/96
5,567,015                       08/396,768                       10/22/96
5,567,019                       08/311,354                       10/22/96
5,567,020                       08/494,031                       10/22/96
5,567,021                       08/491,898                       10/22/96
5,567,026                       08/333,422                       10/22/96
5,567,039                       08/567,647                       10/22/96
5,567,041                       08/514,683                       10/22/96
5,567,059                       08/449,420                       10/22/96
5,567,067                       08/511,535                       10/22/96
5,567,078                       08/382,695                       10/22/96
5,567,079                       08/436,197                       10/22/96
5,567,086                       08/370,766                       10/22/96
5,567,088                       08/357,958                       10/22/96
5,567,096                       08/306,190                       10/22/96
5,567,099                       08/504,426                       10/22/96
5,567,102                       08/178,285                       10/22/96
5,567,111                       08/175,281                       10/22/96
5,567,117                       08/538,383                       10/22/96
5,567,121                       08/376,234                       10/22/96
5,567,127                       08/337,953                       10/22/96
5,567,142                       08/297,309                       10/22/96
5,567,151                       08/326,860                       10/22/96
5,567,155                       08/355,335                       10/22/96
5,567,159                       08/383,593                       10/22/96
5,567,160                       08/548,858                       10/22/96
5,567,162                       08/334,113                       10/22/96
5,567,163                       08/494,685                       10/22/96
5,567,174                       08/253,150                       10/22/96
5,567,190                       08/446,419                       10/22/96
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