United States Patent and Trademark Office OG Notices: 27 August 2002

                                    Errata

   "All reference to Patent No. 6,425,995 to Kenneth S.
Fletcher, et al of Rhode Island, for SENSOR FOR ELECTROMETRIC
MEASUREMENT appearing in the Official Gazette of July 30, 2002 should
be deleted since no patent was granted."

   "All reference to Patent No. 6,426,223 to Emilio
Barbera-Guillem of Powell, OH for CELL CULTURE APPARATUS AND METHOD FOR
CULTURING CELLS appearing in the Official Gazette of July 30, 2002
should be deleted since no patent was granted."