Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 04/19/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,367,198      06/275,420      06/19/81      01/04/83          04/22/96
4,392,476      06/220,195      12/23/80      07/12/83          04/24/96
4,513,865      06/496,593      05/20/83      04/30/85          04/26/96
4,622,966      06/631,536      07/16/84      11/18/86          04/26/96
4,624,264      06/330,501      12/14/81      11/25/86          04/26/96
4,698,361      06/867,446      05/28/86      10/06/87          04/25/96
4,772,262      07/045,708      04/27/87      09/20/88          04/23/96
4,791,993      07/102,713      09/30/87      12/20/88          04/24/96
4,838,794      07/207,232      06/16/88      06/13/89          04/25/96
4,929,090      07/261,588      10/24/88      05/29/90          04/23/96
4,977,903      07/509,258      04/13/90      12/18/90          04/24/96
5,024,662      07/492,749      03/13/90      06/18/91          04/25/96
5,038,598      07/579,144      09/07/90      08/13/91          04/25/96
5,056,528      07/568,085      08/16/90      10/15/91          04/24/96
5,063,522      07/551,764      07/10/90      11/05/91          04/25/96
5,094,579      07/600,442      10/19/90      03/10/92          04/24/96
5,101,739      07/637,344      01/04/91      04/07/92          04/25/96

                 Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 04/26/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,397,743      06/390,287      06/21/82      08/09/83          04/30/96
4,513,865      06/496,593      05/20/83      04/30/85          04/26/96
4,546,974      06/528,977      09/02/83      10/15/85          05/02/96
4,619,280      06/474,975      03/14/83      10/28/86          05/03/96
4,622,966      06/631,536      07/16/84      11/18/86          04/26/96
4,624,264      06/330,501      12/14/81      11/25/86          04/26/96
4,658,651      06/732,946      05/13/85      04/21/87          04/30/96
4,685,447      06/715,457      03/25/85      08/11/87          04/30/96
4,712,699      06/914,384      10/02/86      12/15/87          04/30/96
4,913,206      07/361,543      06/05/89      04/03/90          04/30/96
5,005,222      07/541,741      06/21/90      04/09/91          04/30/96
5,007,437      07/512,520      04/19/90      04/16/91          04/30/96
5,046,614      07/559,398      07/26/90      09/10/91          05/02/96
5,067,717      07/611,683      11/07/90      11/26/91          04/30/96
5,083,839      07/544,602      06/27/90      01/28/92          04/30/96
5,084,777      07/681,148      04/05/91      01/28/92          04/30/96

                 Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 05/03/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,375,411      06/254,739      04/16/81      03/01/83          05/06/96
4,426,325      06/339,788      01/15/82      01/17/84          05/03/96
4,426,336      06/297,736      08/31/81      01/17/84          05/03/96
4,619,280      06/474,975      03/14/83      10/28/86          05/03/96
4,649,462      06/786,696      10/11/85      03/10/87          05/08/96
4,685,848      06/700,835      02/12/85      08/11/87          05/06/96
4,719,053      06/462,340      01/31/83      01/12/88          05/03/96
4,719,150      06/827,328      02/07/86      01/12/88          05/03/96
4,719,212      06/948,444      12/29/86      01/12/88          05/03/96
4,720,541      06/627,497      07/06/84      01/19/88          05/10/96
4,720,577      06/783,212      10/02/85      01/19/88          05/03/96
4,732,440      06/790,134      10/22/85      03/22/88          05/06/96
4,924,019      07/298,845      01/18/89      05/08/90          05/06/96
4,957,170      07/386,309      07/28/89      09/18/90          05/10/96
5,052,930      07/489,691      03/07/90      10/01/91          05/08/96
5,054,131      07/545,694      06/29/90      10/08/91          05/09/96
5,078,046      07/400,146      11/24/89      01/07/92          05/09/96
5,079,472      07/541,901      06/22/90      01/07/92          05/03/96
5,081,078      07/443,881      11/30/89      01/14/92          05/03/96
5,081,080      07/512,732      04/20/90      01/14/92          05/03/96
5,081,150      07/512,078      04/12/90      01/14/92          05/03/96
5,081,212      07/414,535      09/29/89      01/14/92          05/03/96
5,081,214      07/564,043      08/07/90      01/14/92          05/03/96
5,081,263      07/450,402      12/14/89      01/14/92          05/03/96
5,081,322      07/479,401      02/13/90      01/14/92          05/03/96
5,082,504      07/462,489      01/10/90      01/21/92          05/03/96
5,082,632      07/126,734      11/30/87      01/21/92          05/03/96
5,082,845      07/311,910      02/17/89      01/21/92          05/03/96

                 Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 05/10/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,641,238      06/680,107      12/10/84      02/03/87          05/16/96
4,751,081      06/593,691      03/26/84      06/14/88          05/15/96
4,799,277      07/175,680      03/21/88      01/24/89          05/15/96
4,887,741      07/175,108      03/30/88      12/19/89          05/16/96
4,895,991      07/302,587      01/25/89      01/23/90          05/16/96
4,957,170      07/386,309      07/28/89      09/18/90          05/10/96
4,981,343      07/306,119      02/06/89      01/01/91          05/16/96
5,016,796      07/601,344      10/23/90      05/21/91          05/14/96
5,078,407      07/581,593      09/12/90      01/07/92          05/16/96
5,082,406      07/545,808      06/29/90      01/21/92          05/10/96
5,084,423      07/502,321      03/30/90      01/28/92          05/16/96
5,086,281      07/664,237      03/04/91      02/04/92          05/16/96

                Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 05/17/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,474,251      06/324,251      11/25/81      10/02/84          05/22/96
4,578,093      06/613,573      05/24/84      03/25/86          05/17/96
4,581,853      06/598,395      04/10/84      04/15/86          05/17/96
4,622,483      06/707,966      03/04/85      11/11/86          05/17/96
4,629,607      06/686,993      12/27/84      12/16/86          05/21/96
4,656,339      06/674,698      11/26/84      04/07/87          05/21/96
4,664,435      06/664,054      10/23/84      05/12/87          05/23/96
4,687,737      06/751,461      07/02/85      08/18/87          05/20/96
4,712,526      06/821,893      01/23/86      12/15/87          05/22/96
4,712,731      06/888,120      07/22/86      12/15/87          05/20/96
4,830,695      07/120,846      11/16/87      05/16/89          05/22/96
4,833,477      07/275,660      11/22/88      05/23/89          05/20/96
4,886,125      07/119,266      11/09/87      12/12/89          05/20/96
4,911,688      07/219,437      07/15/86      03/27/90          05/23/96
4,953,780      07/402,339      09/05/89      09/04/90          05/20/96
5,017,232      07/492,668      03/13/90      05/21/91          05/17/96
5,028,663      07/469,684      02/22/90      07/02/91          05/20/96
5,035,227      07/474,559      02/02/90      07/30/91          05/21/96
5,066,257      07/477,714      02/09/90      11/19/91          05/20/96
5,070,546      07/537,910      06/12/90      12/10/91          05/21/96
5,077,853      07/639,905      01/10/91      01/07/92          05/20/96
5,079,879      07/573,498      08/27/90      01/14/92          05/22/96
5,079,905      07/529,611      05/29/90      01/14/92          05/17/96
5,083,854      07/480,270      02/15/90      01/28/92          05/17/96
5,085,115      07/578,075      09/05/90      02/04/92          05/22/96
5,086,354      07/316,019      02/27/89      02/04/92          05/20/96

                 Patents Reinstated Due To The Acceptance of a
                      Late Maintenance Fee From 05/24/96

Patent Number  Serial Number   Filing Date   Issue Date    Granted Date

4,396,172      06/275,341      06/19/81      08/02/83          05/30/96
4,423,523      06/404,516      07/30/82      01/03/84          05/24/96
4,479,667      06/258,645      04/29/81      10/30/84          05/31/96
4,503,863      06/302,340      09/15/81      03/12/85          05/31/96
4,512,166      06/401,417      07/23/82      04/23/85          05/31/96
4,576,301      06/537,680      09/30/83      03/18/86          05/30/96
4,641,482      06/433,001      10/06/82      02/10/87          05/29/96
4,720,786      06/854,381      04/21/86      01/19/88          05/30/96
4,721,121      06/829,503      02/14/86      01/26/88          05/31/96
4,820,096      07/095,911      09/14/87      04/11/89          05/30/96
4,854,210      07/089,401      08/26/87      08/08/89          05/30/96
4,873,702      07/260,288      10/20/88      10/10/89          05/29/96
4,905,761      07/226,352      07/29/88      03/06/90          05/30/96
4,913,327      07/256,032      10/11/88      04/03/90          05/31/96
4,916,995      07/300,358      01/23/89      04/17/90          05/29/96
4,979,572      07/325,691      03/20/89      12/25/90          05/29/96
5,073,074      07/558,981      07/26/90      12/17/91          05/29/96