Errata

   "All reference to Reexamination Certificate (3815th) B1 5,547,656 to
Evan C. Unger of Arizona for LOW DENSITY MICROSPHERES AND THEIR USE AS
CONTRAST AGENTS FOR COMPUTED TOMOGRAPHY, AND IN OTHER APPLICATIONS
appearing in the Official Gazette of July 20, 1999 should be deleted
since no patent was granted."

   "All reference to Patent No. 5,969,677 to Franz Hermann, et. al. of
Opfingen, Germany for DIRECTION-FINDING METHOD FOR DETERMINING THE
INCIDENT DIRECTION OF A HIGH FREQUENCY ELECTRO-MAGNETIC SIGNAL
appearing in the Official Gazette of October 19, 1999 should be deleted
since no patent was granted."

   "All reference to Patent No. 6,034,101 to Suneel K. Gupta, et. al. of
California for DOSAGE FORM AND METHOD FOR ADMINISTERING DRUG appearing
in the Official Gazette of March 7, 2000 should be deleted since no
patent was granted."

   "All reference to Patent No. 6,035,833 to Tito De Lima of Caracas,
Venezuela for FUEL CONSUMPTION OPTIMIZER AND CARBON DIOXIDE EMISSIONS
REDUCER BASED ON AN AIR-VACUUM LIQUID COMPENSATION SYSTEM appearing in
the Official Gazette of March 14, 2000 should be deleted since no patent
was granted."

   "All reference to Patent No. 6,040,635 to Robert A. Nims, et. al. of
California for MICROTURBINE POWER GENERATING SYSTEM appearing in the
Official Gazette of March 21, 2000 should be deleted since no patent was
granted."

   "All reference to Patent No. 6,042,070 to Norman Couture of Piedmont,
Canada, for ADJUSTABLE SUPPORT ASSEMBLY appearing in the Official
Gazette of March 28, 2000 should be deleted since no patent was granted."

   "All reference to Patent No. 6,042,381 to Jeremy D. Stone of Washington
for HEIGHTENED REALISM FOR COMPUTER-CONTROLLED UNITS IN REAL-TIME
ACTIVITY SIMULATION appearing in the Official Gazette of March 28, 2000
should be deleted since no patent was granted."

   "All reference to Patent No. 6,043,029 to David H. Beach, et. al. of
New York for CELL-CYCLE REGULATORY PROTEINS, AND USES RELATED THERETO
appearing in the Official Gazette of March 28, 2000 should be deleted
since no patent was granted."

   "All reference to Patent No. 6,043,161 to Zhiqiang Wu, et. al. of Idaho
for METHODS OF MAKING IMPLANTED STRUCTURES appearing in the Official
Gazette of March 28, 2000 should be deleted since no patent was granted."

   "All reference to Patent No. 6,043,601 to Xueping Xu, et. al. of
Conneticut for ELECTRON EMITTING COATED WITH CARBON CONTAINING LAYER
appearing in the Official Gazette of March 28, 2000 should be deleted
since no patent was granted."

   "All reference to Patent No. 6,043,673 to Yuantsang Liaw, et. al. of
Taiwan for APPARATUS FOR ADJUSTING IMPENDANCE OF CONTROLLING CHIP ON A
COMPUTER MAINBOARD appearing in the Official Gazette of March 28, 2000
should be deleted since no patent was granted."

   "All reference to Patent No. 6,043,888 to David E. Aspens, et. al. of
North Carolina for THIN FILM OPTICAL MEASUREMENT SYSTEM AND METHOD WITH
CALIBRATING ELLIPSOMETER appearing in the Official Gazette of March 28,
2000 should be deleted since no patent was granted."