Acacia Subsidiary Enters into Settlement and License Agreement with Ricoh Company, Ltd.

NEWPORT BEACH, Calif.--(Business Wire)--
Acacia Research Corporation (Nasdaq: ACTG) announced today that its wholly owned
subsidiary, Screentone Systems Corporation, has entered into a settlement and
license agreement with Ricoh Company, Ltd. covering a patent portfolio directed
to methods for digital halftone screening.

This patented technology generally relates to methods for improving print image
quality through the use of advanced signal processing techniques for
transforming continuous toned images into high quality half toned images. This
technology can be used in printing products such as high end laser printers and
image setters.

ABOUT ACACIA RESEARCH CORPORATION

Acacia Research`s subsidiaries develop, acquire, and license patented
technologies. Acacia Research`s subsidiaries control over 100 patent portfolios,
covering technologies used in a wide variety of industries.

Information about Acacia Research is available at www.acaciatechnologies.com and
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.

Acacia Research Corporation
Rob Stewart
Investor Relations
Tel: 949-480-8300
Fax: 949-480-8301

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