Newport Beach Acacia Research Corp. has settled a patent lawsuit levied in Delaware against Hewlett-Packard Co., according to a Securities and Exchange Commission filing Thursday morning.

Details of the settlement were not disclosed.

The latest resolution comes a day after Acacia reached a settlement agreement with Denso Corp. in Japan and its American unit related to patents on micro electromechanical systems.

Denso makes car parts and related components.

Investors sent Acacia shares up more than 2% in early afternoon New York trading to a market value of about $1.5 billion.

Earlier this week the company announced it had acquired a package of chip patents from “a major technology company.”

Acacia, which licenses patents for companies, did not disclose any specifics of the deal, keeping in line with its standard practice.

On Monday the company acquired eight patents related to infusion pump technology from a major medical device company.

Acacia tries to strike a licensing deal or sues when it finds a company infringing on a patent.

It splits sales, licensing fees and court settlements with the patent holders.

Acacia also has worked with companies it has sued or settled with on behalf of other clients. Its clients include Seoul, Korea-based Samsung Electronics Co., Microsoft Corp. of Redmond, Wash., and Redwood Shores-based business software maker Oracle Corp.

It also has struck licensing agreements with—or settled patent infringement claims against—a roster of Orange County-based companies, including flat TV designer and seller Vizio Inc. and Sage Software Inc., both in Irvine, and others.