United States Patent and Trademark Office OG Notices: 05 February 2002

                 Patents Reinstated Due to the Acceptance of a
                       Late Maintenance Fee From 1/04/02

Patent          Serial          Filing          Issue           Granted
Number          Number          Date            Date            Date

5,106,233       07/398,613      08/25/89        04/21/92        01/03/02
5,213,243       07/745,356      08/15/91        05/25/93        01/03/02
5,255,762       07/753,118      08/30/91        10/26/93        01/04/02
5,622,452       08/531,513      09/21/95        04/22/97        01/04/02