CombiMatrix Invited to Present at the Nano Business 2006 Conference

NEWPORT BEACH, Calif.--(BUSINESS WIRE)--May 12, 2006--Acacia Research Corporation (Nasdaq:CBMX)(Nasdaq:ACTG) announced today that its CombiMatrix group's President and CEO, Dr. Amit Kumar, will provide a company overview at the Nano Business 2006 Conference to be held May 17-19, 2006 at The New York Marriott Marquis Times Square. Dr. Kumar's presentation will take place on Wednesday, May 17th, 2006 at 11:45 a.m. EDT.

The NanoBusiness Alliance is the industry association for nanotechnology innovators. Through its extensive network of leading startups, Fortune 500 companies, research institutions, non-governmental organizations and public-private partnerships, the Alliance shapes nanotechnology policy and helps accelerate the commercialization of nanotechnology innovations. The NanoBusiness Alliance is headquartered outside of Chicago and has offices in New York, Connecticut and Washington, DC. For more information, visit


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

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.

The Acacia Technologies group develops, acquires, and licenses patented technologies. Acacia controls 42 patent portfolios, which include over 160 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, hearing aid ECS, image resolution enhancement, interactive data sharing, interactive television, laptop docking station connectivity, microprocessor enhancement, multi-dimensional bar codes, network data storage, resource scheduling, rotational video imaging, spreadsheet automation, user activated Internet advertising and web conferencing & collaboration software.

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

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 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.


Acacia Research Corporation
Bret L. Undem (Media Relations), 425-493-2293
Fax: 425-493-2010

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