Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 11/10/00

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

4,727,410        06/555,032        11/23/83        02/23/88       11/16/00
4,748,782        07/063,136        06/16/87        06/07/88       11/14/00
4,769,003        07/086,824        08/19/87        09/06/88       11/14/00
5,002,285        07/550,466        07/10/90        03/26/91       11/16/00
5,061,917        07/506,999        04/10/90        10/29/91       11/14/00
5,100,633        07/604,322        10/25/90        03/31/92       11/13/00
5,109,697        07/644,171        01/22/91        05/05/92       11/16/00
5,120,016        07/567,119        08/13/90        06/09/92       11/13/00
5,133,931        07/573,410        08/28/90        07/28/92       11/13/00
5,140,527        07/446,895        12/06/89        08/18/92       11/14/00
5,142,830        07/512,178        04/20/90        09/01/92       11/14/00
5,294,026        08/020,847        02/19/93        03/15/94       11/14/00
5,484,157        08/214,440        03/18/94        01/16/96       11/15/00
5,497,486        08/213,795        03/15/94        03/05/96       11/14/00
5,511,844        08/139,843        10/22/93        04/30/96       11/14/00
5,524,338        08/362,806        12/22/94        06/11/96       11/13/00
5,541,694        08/551,001        10/31/95        07/30/96       11/14/00