United States Patent and Trademark Office OG Notices: 28 December 2004

                 Patents Reinstated Due to the Acceptance of a
                     Late Maintenance Fee from 11/29/2004

Patent          Application     Filing          Issue           Granted
Number          Number          Date            Date            Date

4,989,987       07/452,296      12/18/89        02/05/91        11/30/04
5,016,335       07/345,792      04/24/89        05/21/91        12/01/04
5,107,823       07/676,599      03/28/91        04/28/92        11/29/04
5,131,002       07/654,798      02/12/91        07/14/92        11/29/04
5,141,592       07/569,855      08/20/90        08/25/92        12/01/04
5,380,411       07/548,912      08/02/90        01/10/95        12/03/04
5,489,551       08/376,209      01/20/95        02/06/96        12/03/04
5,514,709       08/142,869      10/25/93        05/07/96        11/30/04
5,554,290       08/420,234      04/11/95        09/10/96        12/03/04
5,862,575       08/922,412      09/03/97        01/26/99        12/03/04
5,920,983       08/799,651      02/10/97        07/13/99        12/03/04
5,987,187       08/926,894      09/10/97        11/16/99        11/30/04
6,000,062       08/949,509      10/14/97        12/14/99        12/03/04
6,007,615       09/056,891      04/08/98        12/28/99        12/03/04
6,028,623       08/922,695      09/02/97        02/22/00        11/30/04
6,034,720       08/824,395      03/26/97        03/07/00        11/30/04
6,050,365       09/063,809      04/21/98        04/18/00        12/03/04
6,076,542       09/351,655      07/13/99        06/20/00        11/29/04
6,078,354       08/824,397      03/26/97        06/20/00        11/29/04