0000898430-00-003050 424B3 1 20001023 ACACIA RESEARCH CORP 0000934549 6282 954405754 DE 1231 424B3 33 333-43222 743808 55 SOUTH LAKE AVE STE B PASADENA CA 91101 6264496431 12 S RAYMOND AVENUE SUITE B PASADENA CA 91105 424B3 1 0001.txt FINAL PROSPECTUS