United States Patent and Trademark Office OG Notices: 06 July 2004

                                    Erratum

   In the notice of Certificate of Correction appearing in March
30, 2004, delete all reference to Patent No. 6,628,349, issue of March
9, 2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in April
20, 2004, delete all reference to Patent No. 6,628,349, issue of March
30, 2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in June 8,
2004, delete all reference to Patent No. 6,208,940, issue of May 18,
2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in June 8,
2004, delete all reference to Patent No. 6,645,661, issue of May 18,
2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in June 8,
2004, delete all reference to Patent No. 6,173,617, issue of May 18,
2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in April
27, 2004, delete all reference to Patent No. 6,654,792, issue of April
6, 2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in May 29,
2001 O.G., delete all reference to Patent No. 5,997,239, issue of May
29, 2001. No certificate of correction was granted for this patent.