Acer, Apacer Technology, Cactus Technologies, Greenliant Systems, Lenovo, and Spansion are the most recent defendants added to e.Digital Corporation’s ongoing litigation campaign. The complaints accuse defendants’ tablets and PCs of infringing a single patent related to a removable and interchangeable flash memory that can be used in a handheld device (5,839,108). e.Digital has asserted the patent-in-suit in the majority of its lawsuits. The litigation campaign targets devices that incorporate flash memory storage, including cameras, computers, media players, mobile phones, and tablets.