0001019687-05-002611 S-3 5 20050916 20050916 ACACIA RESEARCH CORP 0000934549 3670 954405754 DE 1231 S-3 33 333-128359 051087731 500 NEWPORT CENTER DRIVE 7TH FLOOR NEWPORT BEACH CA 92660 9494808300 500 NEWPORT CENTER DRIVE # NEWPORT BEACH CA 92660 S-3 1 acacia_s3-091505.txt EX-5.1 2 acacia_s3-ex0501.txt OPINION EX-23.2 3 acacia_s3-ex2302.txt CONSENT EX-23.3 4 acacia_s3-ex2303.txt CONSENT EX-23.4 5 acacia_s3-ex2304.txt CONSENT