United States Patent and Trademark Office OG Notices: 21 June 2005

                                   Erratum


   In the notice of Certificate of Correction appearing in August
5, 2003, delete all reference to Patent No. 6,458,050, issue of July
15, 2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in July
29, 2003, delete all reference to Patent No. 6,381,696, issue of July
8, 2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in July 8,
2003, delete all reference to Patent No. 5,899,211, issue of June 17,
2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in May 27,
2003, delete all reference to Patent No. 6,356,090, issue of May 6,
2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in July
29, 2003, delete all reference to Patent No. 6,403,449, issue of July
8, 2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in
November 30, 2004, delete all reference to Patent No. 6,694,422, issue
of November 9, 2004. No certificate of correction was issued for this
patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in June 3,
2003, delete all reference to Patent No. 6,411,533, issue of May 13,
2003. No certificate of correction was issued for this patent.


                                   Erratum


   In the notice of Certificate of Correction appearing in
February 22, 2005, delete all reference to Patent No. 6,777,000, issue
of February 1, 2005. No certificate of correction was issued for this
patent.