Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 11/03/00

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

4,694,007        09/025,725        02/18/98        00/00/00       11/03/00
4,694,007        06/865,055        05/20/86        09/15/87       11/03/00
4,737,982        06/931,245        11/17/86        04/12/88       11/07/00
5,036,588        07/415,736        10/02/89        08/06/91       11/08/00
5,044,861        07/607,202        10/31/90        09/03/91       11/08/00
5,072,453        07/490,294        03/08/90        12/17/91       11/09/00
5,074,916        07/525,539        05/18/90        12/24/91       11/03/00
5,088,248        07/665,346        03/06/91        02/18/92       11/03/00
5,105,929        07/709,936        06/04/91        04/21/92       11/08/00
5,119,461        07/620,898        12/03/90        06/02/92       11/09/00
5,127,921        07/668,392        03/13/91        07/07/92       11/03/00
5,135,503        07/524,345        05/16/90        08/04/92       11/07/00
5,137,513        07/547,674        07/02/90        08/11/92       11/07/00
5,361,575        08/029,032        03/10/93        11/08/94       11/07/00
5,370,578        08/093,174        07/16/93        12/06/94       11/03/00
5,410,504        08/237,269        05/03/94        04/25/95       11/03/00
5,439,536        08/236,811        05/02/94        08/08/95       11/08/00
5,493,785        08/354,244        12/12/94        02/27/96       11/03/00
5,534,337        08/043,200        04/05/93        07/09/96       11/07/00
5,546,007        08/346,053        11/29/94        08/13/96       11/03/00
5,550,231        08/077,305        06/15/93        08/27/96       11/06/00