Acacia Technologies Acquires Patent Portfolio for Telematics Technology

NEWPORT BEACH, Calif.--June 21, 2006--Acacia Research Corporation 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 patents relating to the rapidly growing field of telematics. Telematics refers to systems used in vehicles that combine wireless communication with GPS tracking and can be used in vehicle navigation systems and mobile fleet management.

"Acacia is serving an unmet need in the market for companies that want to generate revenue from the licensing of their patented technologies. Acacia's licensing success is attracting more companies that are selecting us as their partner," commented Paul Ryan, Acacia Chairman and CEO. "This is the 5th patented technology we have acquired this quarter and we now control 47 patent portfolios," concluded Mr. Ryan.

The patents generally relate to technology for displaying mobile vehicle information on a map. This technology can be used in navigation and fleet management systems that combine wireless communication with GPS tracking and map displays.

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 47 patent portfolios, which include 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.

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 and Acacia Research-CombiMatrix 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.