0001237899-04-000007 4 2 20040102 20040106 BAKER CHARLES A 0001225470 4 34 000-19034 04508758 4830 PROVINCE LINE ROAD PRINCETON NJ 08540 REGENERON PHARMACEUTICALS INC 0000872589 2834 133444607 NY 1231 777 OLD SAW MILL RIVER RD TARRYTOWN NY 10591-6707 9143477000 4 1 edgardoc.xml PRIMARY DOCUMENT EX-24 3 powerofattycb.txt EDGAR SUPPORTING DOCUMENT