8-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM 8-K

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CURRENT REPORT

PURSUANT TO SECTION 13 or 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

August 25, 2005

Date of Report (Date of earliest event reported)

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ACACIA RESEARCH CORPORATION

(Exact name of Registrant as specified in its Charter)

Delaware (State or Other Jurisdiction of Incorporation) 000-26068 (Commission File Number) 95-4405754 (I.R.S. Employer Identification No.)

500 Newport Center Drive,

Newport Beach, California 92660

(Address of Principal Executive Offices)

(949) 480-8300

Registrant's telephone number, including area code

Not Applicable

(Former Name or Former Address, if Changed since Last Report)

ITEM 7.01. REGULATION FD DISCLOSURE

On August 25, 2005, Acacia Research Corporation issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

	ACACIA RESEARCH CORPORATION
Date: August 25, 2005	By:	/s/ Paul R. Ryan
		Name: Paul R. Ryan Title: Chairman and Chief Executive Officer

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Exhibit Index

Exhibit NumberDescription

99.1   Press Release dated August 25, 2005, of the Registrant.

EX-99.1

EXHIBIT 99.1

	Contacts:	Rob Stewart
		Investor Relations
FOR RELEASE		Tel (949) 480-8300
August 25, 2005		Fax (949) 480-8301
		Email: rs@acaciares.com

ACACIA TECHNOLOGIES ENTERS INTO LICENSE AND SETTLEMENT AGREEMENT
WITH SONY CORPORATION

Newport Beach, CA. - (BUSINESS WIRE) August 25, 2005 - Acacia Research Corporation (Nasdaq: ACTG: CBMX) announced today that IP Innovation, LLC, AV Technologies, LLC, and New Medium Technologies, LLC, all wholly owned subsidiaries that are part of the Acacia Technologies group, have entered into a license and settlement agreement with Sony Corporation, covering patents that apply to Audio/Video Enhancement and Synchronization, and Image Resolution Enhancement technologies. The agreement with Sony resolves a patent infringement lawsuit which was pending in the United States District Court for the Northern District of Illinois.

The Audio/Video Enhancement and Synchronization technologies generally relate to the use of a noise reduction filtering system for digital video compression, and for video and audio signals received by digital radios and video displays. Other aspects of the technologies apply to the synchronization of audio/video signals. The Image Resolution Enhancement Technology generally relates to the modification of a video or printed display to improve the perceived image quality beyond the basic pixel resolution of the display.

ABOUT ACACIA RESEARCH CORPORATION

Acacia Research Corporation comprises two operating groups, Acacia Technologies group and CombiMatrix group.

The Acacia Technologies group develops, acquires, and licenses patented technologies.  Acacia controls 31 patent portfolios, which include over 120 U.S. patents, and certain foreign counterparts, covering technologies used in a wide variety of industries including audio/video enhancement & synchronization, broadcast data retrieval, computer memory cache coherency, credit card fraud protection, database management, data encryption & product activation, digital media transmission (DMT_®), digital video production, dynamic manufacturing modeling, enhanced Internet navigation, hearing aid ECS, image resolution enhancement, interactive data sharing, interactive television, interstitial Internet advertising, laptop docking station connectivity, microprocessor enhancement, multi-dimensional bar codes, network data storage, resource scheduling, rotational video imaging and spreadsheet automation.

The CombiMatrix group is developing a platform technology to rapidly produce customizable arrays, which are semiconductor-based tools for use in identifying and determining the roles of genes, gene mutations and proteins.  The CombiMatrix's group's technology has a wide range of potential applications in the areas of genomics, proteomics, biosensors, drug discovery, drug development, diagnostics, combinatorial chemistry, material sciences and nanotechnology.

Acacia Research-Acacia Technologies (Nasdaq: ACTG) and Acacia Research-CombiMatrix (Nasdaq: CBMX) are both classes of common stock issued by Acacia Research Corporation and are intended to reflect the performance of the respective operating groups and are not issued by the operating groups. 

Information about the Acacia Technologies group and the CombiMatrix group is available at www.acaciaresearch.com.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995:

This news release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements are based upon our current expectations and speak only as of the date hereof. Our actual results may differ materially and adversely from those expressed in any forward-looking statements as a result of various factors and uncertainties, including the recent economic slowdown affecting technology companies, our ability to successfully develop products, rapid technological change in our markets, changes in demand for our future products, legislative, regulatory and competitive developments and general economic conditions. Our Annual Report on Form 10-K, recent and forthcoming Quarterly Reports on Form 10-Q, recent Current Reports on Forms 8-K and 8-K/A, and other SEC filings discuss some of the important risk factors that may affect our business, results of operations and financial condition. We undertake no obligation to revise or update publicly any forward-looking statements for any reason.