Acacia Research Corporation
500 Newport Center Drive, 7th Floor
Newport Beach, California 92660
April 27, 2010
VIA EDGAR
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549
Attention: Mr. Kevin Dougherty
| Re: | Acacia Research Corporation Registration Statement on Form S-3 (File No. 333-157623) Request for Acceleration |
Dear Mr. Dougherty:
Pursuant to Rule 461 of Regulation C of the General Rules and Regulations under the Securities Act of 1933, as amended, the undersigned, on behalf of Acacia Research Corporation, a Delaware corporation (the “Company”), respectfully requests that the effective date of the Registration Statement on Form S-3 referred to above be accelerated so that it will become effective at 4:00 p.m. Eastern Standard Time on April 29, 2010, or as soon as practicable thereafter.
The Company acknowledges that:
| ● | should the Commission or the staff, acting pursuant to delegated authority, declare the filing effective, it does not foreclose the Commission from taking any action with respect to the filing; |
| ● | the action of the Commission or the staff, acting pursuant to delegated authority, in declaring the filing effective, does not relieve the Company from its full responsibility for the adequacy and accuracy of the disclosure in the filing; and |
| ● | the Company may not assert staff comments and the declaration of effectiveness as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States. |
Thank you for your assistance and cooperation with this matter.
Very truly yours, ACACIA RESEARCH CORPORATION /s/ Clayton Haynes Clayton Haynes Chief Financial Officer |