Acacia Research Corporation was incorporated on January 25, 1993 under the laws of the State of California. In December 1999, it changed its state of incorporation from California to Delaware. The Company partners with inventors and patent owners to patent assets to unlock the financial value in their patented inventions. The Company is an intermediary in the patent marketplace, facilitating efficiency and delivering monetary rewards to patent owners. Its operating subsidiaries assist patent owners with the prosecution and development of their patent portfolios, the protection of their patented inventions from unauthorized use, the generation of licensing revenue from users of their patented technologies and, where necessary, with the enforcement against unauthorized users of their patented technologies through the filing of patent infringement litigation. It owns or controls the rights to over 200 patent portfolios, which include U.S. patents and certain foreign counterparts, covering technologies used in a wide variety of industries. Its competitors include RPX, AST, Intellectual Ventures, Wi-LAN, MOSAID, Round Rock Research LLC, IPvalue Management Inc., Vringo Inc. and Pendrell Corporation.