Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 08/11/00

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

4,737,714        07/064,702        06/22/87        04/12/88       08/14/00
4,745,546        06/392,207        06/25/82        05/17/88       08/14/00
4,747,095        06/881,300        07/02/86        05/24/88       08/16/00
4,930,637        07/232,802        08/16/88        06/05/90       08/16/00
4,949,482        07/371,628        06/26/89        08/21/90       08/14/00
4,949,810        07/251,771        10/03/88        08/21/90       08/17/00
4,950,154        07/374,927        07/03/89        08/21/90       08/14/00
4,958,391        07/299,535        01/23/89        09/25/90       08/14/00
4,968,891        07/441,008        11/22/89        11/06/90       08/16/00
4,994,256        07/522,640        05/14/90        02/19/91       08/16/00
5,000,352        07/401,656        08/31/89        03/19/91       08/14/00
5,020,936        07/387,496        07/28/89        06/04/91       08/14/00
5,025,416        07/360,173        06/01/89        06/18/91       08/16/00
5,051,869        07/521,783        05/10/90        09/24/91       08/15/00
5,058,265        07/580,042        09/10/90        10/22/91       08/14/00
5,093,801        07/549,041        07/06/90        03/03/92       08/11/00
5,095,525        07/371,167        06/26/89        03/10/92       08/16/00
5,103,183        07/471,152        01/26/90        04/07/92       08/11/00
5,127,357        07/774,517        10/08/91        07/07/92       08/17/00
5,326,108        07/914,194        07/09/92        07/05/94       08/14/00
5,333,476        07/942,578        09/09/92        08/02/94       08/14/00
5,335,212        08/000,639        01/05/93        08/02/94       08/11/00
5,366,789        07/941,061        12/17/92        11/22/94       08/11/00
5,386,142        08/058,016        05/07/93        01/31/95       08/14/00
5,412,928        08/183,819        01/21/94        05/09/95       08/14/00
5,419,753        08/215,249        03/21/94        05/30/95       08/16/00
5,424,626        07/917,227        07/23/92        06/13/95       08/14/00
5,449,023        08/289,543        08/12/94        09/12/95       08/15/00
5,453,423        08/119,202        09/27/93        09/26/95       08/15/00
5,464,844        08/244,208        06/02/94        11/07/95       08/11/00
5,475,250        08/191,667        02/04/94        12/12/95       08/17/00
5,483,474        08/151,965        11/15/93        01/09/96       08/17/00
5,509,755        08/173,604        12/27/93        04/23/96       08/14/00
5,529,131        08/535,565        09/28/95        06/25/96       08/11/00
5,544,218        08/330,719        10/28/94        08/06/96       08/14/00
5,590,091        08/500,335        07/10/95        12/31/96       08/17/00