United States Patent and Trademark Office OG Notices: 22 January 2002

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee from 12/24/01

Patent          Serial          Filing          Issue            Granted
Number          Number          Date            Date                Date

4,588,577       06/709,527      03/08/85        05/13/86        12/27/01
5,636,245       08/288,040      08/10/94        06/03/97        12/27/01
5,653,351       08/569,418      12/06/95        08/05/97        12/26/01
5,665,217       08/427,196      04/24/95        09/09/97        12/26/01
5,669,759       08/522,169      07/13/95        09/23/97        12/26/01
5,678,275       08/753,170      11/20/96        10/21/97        12/26/01