A newly created Acacia Research subsidiary, Limestone Memory Systems LLC (LMS), filed its first suit, naming Acer, Dell, HP, Kingston Technology, Lenovo, Micron, OCZ Storage Solutions, PNY Technologies, and Transcend. Micron’s DRAM chips are accused of infringement, and devices made by the other defendants in the suit are accused of incorporating those chips. The patents-in-suit concern semiconductor memory chips and the programming of those chips (5,805,504, 5,894,441, 5,943,260).