United States Patent and Trademark Office OG Notices: 08 January 2002

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 12/10/01

Patent          Serial          Filing          Issue           Granted
Number          Number          Date            Date            Date

4,867,146       07/152,184      02/04/88        09/19/89        12/11/01
5,122,190       07/552,562      07/13/90        06/16/92        12/12/01
5,207,079       07/536,675      08/24/90        05/04/93        12/11/01
5,237,541       07/887,438      05/21/92        08/17/93        12/12/01
5,667,382       08/355,536      12/14/94        09/16/97        12/13/01