Acacia Research Corporation (Nasdaq: ACTG) announced today that a subsidiary has acquired patents relating to vascular device technology. “Acacia and its subsidiaries continue to increase the number of patent portfolios they control in the medical device and diagnostics sectors,” commented Paul Ryan, CEO. ABOUT ACACIA RESEARCH CORPORATION Acacia Research Corporation’s subsidiaries partner with inventors and patent owners, license the patents to corporate users, and share the revenue. Acacia Research Corporation’s subsidiaries control 250 patent portfolios, covering technologies used in a wide variety of industries. Information about Acacia Research Corporation and its subsidiaries is available at www.acaciaresearchgroup.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 including those of Paul Ryan relating to the number of patent portfolios that are controlled, are based upon our current expectations and speak only as of the date hereof. The ability of Acacia and its subsidiaries to continue increasing the number of controlled patent portfolios in the medical device and diagnostics sectors, and 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 ability to identify and secure patent partners in the medical sector, the ability to successfully develop licensing programs and attract new business, recent economic slowdown affecting technology companies, rapid technological change in relevant markets, changes in demand for current and future intellectual property rights, legislative, regulatory and competitive developments addressing licensing and enforcement of patents and/or intellectual property in general, 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.