United States Patent and Trademark Office OG Notices: 23 May 2006

                 Patents Reinstated Due to the Acceptance of a
                     Late Maintenance Fee from 04/24/2006

Patent          Application     Filing          Issue           Granted
Number          Number          Date            Date            Date

5,178,164       07/677,096      03/29/91        01/12/93        04/27/06
5,239,794       07/875,875      04/29/92        08/31/93        04/27/06
5,287,272       07/420,105      10/11/89        02/15/94        04/28/06
5,499,987       08/197,604      02/17/94        03/19/96        04/25/06
5,517,656       08/075,392      06/11/93        05/14/96        04/28/06
5,523,950       08/436,892      05/08/95        06/04/96        04/28/06
5,598,065       08/187,400      01/25/94        01/28/97        04/24/06
5,662,599       08/603,466      02/20/96        09/02/97        04/24/06
5,680,688       08/602,100      02/15/96        10/28/97        04/27/06
6,036,663       09/119,056      07/20/98        03/14/00        04/24/06
6,101,299       09/092,400      06/05/98        08/08/00        04/24/06
6,173,097       09/108,451      07/01/98        01/09/01        04/24/06
6,257,130       09/637,718      08/11/00        07/10/01        04/24/06
RE 36,864       08/430,947      04/28/95        09/12/00        04/28/06
RE 38,371       10/021,350      12/19/01        12/30/03        04/24/06