ACCESS and Acacia Subsidiary License Smartphone Technology to Microsoft

ACCESS Co., Ltd., a global provider of advanced software technologies to the mobile, beyond-PC and digital TV markets, and Smartphone Technologies LLC, a subsidiary of Acacia Research Corporation (Nasdaq: ACTG), announced today that they licensed to Microsoft a portfolio of patents related to smartphones owned by ACCESS Co., Ltd. The patents cover inventions created by ACCESS Co., Ltd., Palm, Palmsource, Bell Communications Research, and Geoworks.

ABOUT ACCESS CO. LTD.

ACCESS CO., LTD. is a global company providing leading technology, software products and platforms for Web browsing, mobile phones, wireless handhelds, digital TVs and other networked devices. ACCESS’ product portfolio, including its NetFront™ Browser, ACCESS Linux Platform™ and Garnet™ OS, provides customers with solutions that enable faster time to market, flexibility and customizability. The company, headquartered in Tokyo, Japan, operates subsidiaries and affiliates in Asia, Europe and the United States. ACCESS is listed on the Tokyo Stock Exchange Mother’s Index under the number 4813. For more information about ACCESS please visit www.access-company.com.

ABOUT ACACIA RESEARCH CORPORATION

Acacia Research’s subsidiaries partner with inventors and patent owners, license the patents to corporate users, and share the revenue. Acacia Research’s subsidiaries control over 150 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 may contain forward-looking statements within the meaning of the "safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Such 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.