United States Patent and Trademark Office OG Notices: 18 December 2001

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 11/02/01

Patent          Serial          Filing          Issue           Granted
Number          Number          Date            Date            Date

5,222,085       07/602,409      10/22/90        06/22/93        11/06/01
5,231,806       07/923,467      08/03/92        08/03/93        11/08/01
5,234,151       07/936,950      08/28/92        08/10/93        11/06/01
5,458,340       08/380,291      01/30/95        10/17/95        11/06/01
5,558,870       08/317,311      10/03/94        09/24/96        11/08/01
5,573,451       08/258,980      06/13/94        11/12/96        11/07/01
5,591,669       08/454,034      05/30/95        01/07/97        11/05/01
5,606,755       08/417,518      04/05/95        03/04/97        11/05/01
5,632,133       08/222,105      07/25/94        05/27/97        11/06/01
5,637,366       08/483,687      06/07/95        06/10/97        11/07/01
5,640,497       08/377,008      01/23/95        06/17/97        11/07/01
5,646,268       08/594,522      01/31/96        07/08/97        11/08/01
5,653,906       08/332,112      10/31/94        08/05/97        11/07/01