Acacia Technologies Acquires Rights to High Resolution Optics Patents

NEWPORT BEACH, Calif.--(BUSINESS WIRE)--Sept. 14, 2005--Acacia Research Corporation (Nasdaq:ACTG)(Nasdaq:CBMX) announced today that Acacia Patent Acquisition Corporation, a wholly owned subsidiary that is part of the Acacia Technologies group, a leader in technology licensing, has acquired the rights to patents relating to high resolution optics used by the military and in commercial products.

"This is the 31st patented technology for which we have acquired rights since the beginning of the year," commented Paul Ryan, Chairman and CEO of Acacia. "Our diversification has already resulted in our receiving revenues from many different portfolios and we expect our revenue opportunities to continue to increase as we initiate licensing and enforcement campaigns for the newly acquired technologies," concluded Mr. Ryan.

“Our diversification has already resulted in our receiving revenues from many different portfolios and we expect our revenue opportunities to continue to increase as we initiate licensing and enforcement campaigns for the newly acquired technologies”

These patents generally relate to refractive and diffractive systems and methods for improving imaging capabilities in multi-element optical systems by using fewer elements. The patented systems and techniques have direct applications in military imaging systems such as thermal weapon sites, as well as commercial products like camera lenses and optical printers.

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 33 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(R)), digital video production, dynamic manufacturing modeling, enhanced Internet navigation, image resolution enhancement, interactive data sharing, interactive television, hearing aid ECS, 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.

Contacts

Acacia Research Corporation
Rob Stewart (Investors), 949-480-8300
Fax: 949-480-8301

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