Acacia Research announced the acquisition of rights to 40 microprocessor and memory patents and a revenue-sharing agreement with the patent owner. Since 2011, Acacia has launched seven different enforcement campaigns against semiconductor defendants with patents from a number of sources including Alliance Semiconductor, Elpida, ProMos, Renesas, and Skyworks Solutions. Acacia’s plaintiff entities in these campaigns include Chip Packaging Solutions, Signal Enhancement, 3D Design Solutions, Semiconductor Packing, Semiconductor Technologies, Smart Foundry and Power Management Solutions. Other recent Acacia campaigns targeting semiconductor defendants include Advanced Processor Technologies, DRAM Memory Technologies, and Advanced Data Access.