United States Patent and Trademark Office OG Notices: 30 July 2002

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 06/24/02

Patent          Serial          Filing          Issue           Granted
Number          Number          Date            Date            Date

4,829,975       07/143,618      01/13/88        05/16/89        06/25/02
4,879,855       07/183,730      04/20/88        11/14/89        06/25/02
4,887,942       07/246,658      09/02/88        12/19/89        06/27/02
4,895,335       07/342,353      04/24/89        01/23/90        06/27/02
4,913,263       07/264,843      10/31/88        04/03/90        06/27/02
4,946,169       07/230,006      08/08/88        08/07/90        06/28/02
5,137,483       07/805,850      12/10/91        08/11/92        06/26/02
5,154,248       07/503,869      04/03/90        10/13/92        06/26/02
5,185,103       07/812,778      12/23/91        02/09/93        06/27/02
5,202,916       07/565,947      08/10/90        04/13/93        06/25/02
5,236,497       07/917,910      07/21/92        08/17/93        06/25/02
5,259,479       07/775,909      10/15/91        11/09/93        06/27/02
5,294,200       07/859,819      03/30/92        03/15/94        06/27/02
5,323,068       07/977,812      11/17/92        06/21/94        06/28/02
5,535,911       08/297,378      08/29/94        07/16/96        06/26/02
5,575,522       08/495,824      06/28/95        11/19/96        06/26/02
5,606,879       08/450,487      05/26/95        03/04/97        06/26/02
5,607,487       08/424,189      04/19/95        03/04/97        06/26/02
5,678,352       08/553,459      01/25/96        10/21/97        06/28/02
5,686,776       08/473,903      06/07/95        11/11/97        06/28/02
5,687,618       08/580,428      12/27/95        11/18/97        06/26/02
5,722,809       08/418,457      04/07/95        03/03/98        06/28/02
5,725,154       08/516,530      08/18/95        03/10/98        06/28/02
5,730,826       08/444,958      05/19/95        03/24/98        06/26/02
5,731,386       08/438,185      05/09/95        03/24/98        06/26/02
RE. 33,920      07/390,713      07/11/89        05/12/92        06/28/02