-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Tn6IPx+WcCFHFP06x7BlZAxBZVgY9VHaFNpjxLLnYNoX+uoYz4CfS93sPr0rSdIV
 aQWGg5aXu4v9WwmaXNzQTg==

<SEC-DOCUMENT>0001019687-05-000224.txt : 20050201
<SEC-HEADER>0001019687-05-000224.hdr.sgml : 20050201
<ACCEPTANCE-DATETIME>20050201170630
ACCESSION NUMBER:		0001019687-05-000224
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20050201
DATE AS OF CHANGE:		20050201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ACACIA RESEARCH CORP
		CENTRAL INDEX KEY:			0000934549
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS & ACCESSORIES [3670]
		IRS NUMBER:				954405754
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-122452
		FILM NUMBER:		05566529

	BUSINESS ADDRESS:	
		STREET 1:		500 NEWPORT CENTER DRIVE
		STREET 2:		7TH FLOOR
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
		BUSINESS PHONE:		9494808300

	MAIL ADDRESS:	
		STREET 1:		500 NEWPORT CENTER DRIVE
		STREET 2:		#
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3
<SEQUENCE>1
<FILENAME>acacia_s3-013105.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>acacia_s3ex5-1.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>acacia_s3ex23-2.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.3
<SEQUENCE>4
<FILENAME>acacia_s3ex23-3.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.4
<SEQUENCE>5
<FILENAME>acacia_s3ex23-4.txt
</DOCUMENT>
</SUBMISSION>