United States Patent and Trademark Office OG Notices: 17 August 2004

                                    Erratum

   In the notice of Certificate of Correction appearing in July
20, 2004, delete all reference to Patent No. 6,668,397, issue of June
29, 2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in July
20, 2004, delete all reference to Patent No. 6,365,831, issue of June
29, 2004. No certificate of correction was granted for this patent.


                                    Erratum

   In the notice of Certificate of Correction appearing in June
15, 2004, delete all reference to Patent No. 6,203,750, issue of May
25, 2004. No certificate of correction was granted for this patent.