Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 10/06/00

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

4,684,680        06/795,309        11/06/85        08/04/87       10/10/00
4,760,687        07/056,227        06/01/87        08/02/88       10/06/00
4,978,273        07/440,939        11/22/89        12/18/90       10/10/00
5,036,942        07/567,417        08/14/90        08/06/91       10/06/00
5,060,700        07/490,423        03/08/90        10/29/91       10/06/00
5,088,851        07/591,262        10/01/90        02/18/92       10/12/00
5,100,030        07/526,445        05/24/90        03/31/92       10/11/00
5,104,490        07/262,126        10/25/88        04/14/92       10/12/00
5,105,675        07/709,188        06/03/91        04/21/92       10/11/00
5,110,785        07/694,355        05/01/91        05/05/92       10/11/00
5,118,021        07/698,267        05/10/91        06/02/92       10/12/00
5,118,419        07/698,900        05/13/91        06/02/92       10/11/00
5,119,864        07/521,196        05/09/90        06/09/92       10/11/00
5,122,488        07/482,148        02/20/90        06/16/92       10/11/00
5,124,656        07/589,355        09/28/90        06/23/92       10/11/00
5,136,651        07/713,830        06/12/91        08/04/92       10/12/00
5,138,872        07/682,981        04/10/91        08/18/92       10/12/00
5,145,370        07/576,266        08/31/90        09/08/92       10/11/00
5,173,901        07/573,204        08/13/90        12/22/92       10/06/00
5,231,253        07/896,496        06/02/92        07/27/93       10/12/00
5,251,082        07/714,561        06/13/91        10/05/93       10/12/00
5,275,539        07/896,143        06/09/92        01/04/94       10/11/00
5,353,885        08/089,356        07/09/93        10/11/94       10/11/00
5,416,019        08/186,501        01/26/94        05/16/95       10/11/00
5,445,425        08/139,271        10/18/93        08/29/95       10/11/00
5,447,450        08/200,017        02/22/94        09/05/95       10/12/00
5,447,921        08/409,400        03/24/95        09/05/95       10/06/00
5,508,903        08/426,093        04/21/95        04/16/96       10/12/00
5,518,797        08/265,418        06/24/94        05/21/96       10/11/00
5,527,705        08/304,463        09/12/94        06/18/96       10/11/00
5,529,108        07/971,849        01/08/93        06/25/96       10/12/00
5,534,524        08/240,027        05/09/94        07/09/96       10/11/00
5,543,196        08/279,882        07/26/94        08/06/96       10/11/00
5,549,151        08/353,845        12/12/94        08/27/96       10/11/00
5,553,657        08/261,694        05/31/94        09/10/96       10/11/00