Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 09/15/00

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

Re. 35,372       08/462,019        06/05/95        11/05/96       09/21/00
4,634,795        06/769,765        08/27/85        01/06/87       09/19/00
4,714,162        06/942,601        12/17/86        12/22/87       09/15/00
4,742,825        06/903,775        09/05/86        05/10/88       09/20/00
4,753,432        06/909,383        09/19/86        06/28/88       09/19/00
4,792,291        07/094,682        09/09/87        12/20/88       09/21/00
4,993,341        07/469,211        01/24/90        02/19/91       09/21/00
5,047,228        07/318,454        03/02/89        09/10/91       09/20/00
5,057,385        07/627,406        12/14/90        10/15/91       09/20/00
5,061,764        07/368,802        06/20/89        10/29/91       09/21/00
5,082,232        07/489,049        03/06/90        01/21/92       09/20/00
5,088,943        07/557,476        07/24/90        02/18/92       09/20/00
5,108,930        07/469,964        02/20/90        04/28/92       09/20/00
5,111,102        07/522,209        05/11/90        05/05/92       09/21/00
5,111,925        07/626,735        12/31/90        05/12/92       09/20/00
5,126,348        07/412,795        09/26/89        06/30/92       09/20/00
5,127,924        07/723,940        07/01/91        07/07/92       09/20/00
5,132,890        07/639,493        01/09/91        07/21/92       09/21/00
5,185,729        07/678,478        04/01/91        02/09/93       09/21/00
5,341,521        08/059,649        05/10/93        08/30/94       09/18/00
5,343,175        08/116,625        09/07/93        08/30/94       09/20/00
5,345,746        08/057,515        05/06/93        09/13/84       09/21/00
5,389,586        08/232,842        04/21/94        02/14/95       09/15/00
5,435,167        08/184,373        01/21/94        07/25/95       09/21/00
5,454,197        07/936,235        08/21/92        10/03/95       09/19/00
5,474,322        08/278,511        07/21/94        12/12/95       09/20/00
5,478,139        08/066,212        05/25/93        12/26/95       09/21/00
5,489,477        08/213,701        03/16/94        02/06/96       09/20/00
5,513,447        08/387,564        02/13/95        05/07/96       09/20/00
5,513,621        08/255,640        06/09/94        05/07/96       09/20/00
5,514,313        08/371,873        01/12/95        05/07/96       09/20/00
5,514,924        08/136,534        10/14/93        05/07/96       09/20/00
5,517,645        08/147,683        11/05/93        05/14/96       09/21/00
5,518,697        08/378,206        01/25/95        05/21/96       09/20/00
5,521,795        08/349,557        12/05/94        05/28/96       09/20/00
5,523,993        08/443,246        05/17/95        06/04/96       09/15/00
5,527,283        07/843,247        02/28/92        06/18/96       09/19/00
5,527,643        08/295,066        08/26/94        06/18/96       09/20/00
5,529,651        08/341,074        11/17/94        06/25/96       09/20/00
5,588,272        08/345,857        11/28/94        12/31/96       09/15/00