United States Patent and Trademark Office OG Notices: 17 October 2006

                                   Erratum

   In the notice of Certificate of Correction appearing in September 19,
2006, delete all reference to Patent No. 6,994,549, issue of August 29,
2006. No certificate of correction was granted for this patent.


                                   Erratum

   In the notice of Certificate of Correction appearing in September 19,
2006, delete all reference to Patent No. 6,308,464, issue of August 29,
2006. No certificate of correction was granted for this patent.


                                   Erratum

   In the notice of Certificate of Correction appearing in March 1, 2005
Official Gazette, insert the reference, Patent No. 5,238,529. The
certificate of correction for this patent is valid. The certificate of
correction was granted and should have been included on the certificate of
correction issue list for February 8, 2005.


                                   Erratum

   In the notice of Certificate of Correction appearing in July 12, 2005
Official Gazette, the reference, Patent No. 6,372,748 should read
6,392,748. The certificate of correction for this patent is valid. The
certificate of correction was granted and patent number 6,392,748 should
have been included on the certificate of correction issue list for June 21,
2005.


                                   Erratum

   In the notice of Certificate of Correction appearing in September 12,
2006, delete all reference to Patent No. 6,311,527, issue of August 22,
2006. No certificate of correction was granted for this patent.