United States Patent and Trademark Office OG Notices: 23 January 2007

                 Patents Reinstated Due to the Acceptance of a
                     Late Maintenance Fee from 12/25/2006

Patent          Application     Filing          Issue           Granted
Number          Number          Date            Date            Date

5,648,789       07/769,849      10/02/91        07/15/97        12/28/06
5,823,398       08/686,520      07/26/96        10/20/98        12/28/06
6,084,953       09/143,487      08/28/98        07/04/00        12/26/06
6,094,137       09/064,385      04/22/98        07/25/00        12/26/06
6,122,603       09/095,730      06/10/98        09/19/00        12/27/06
6,308,746       09/772,089      01/24/01        10/30/01        12/26/06
6,319,174       09/695,829      10/26/00        11/20/01        12/27/06
6,375,368       09/688,589      10/16/00        04/23/02        12/26/06
6,381,128       09/617,631      07/17/00        04/30/02        12/27/06