LG and LG Electronics (1:20-cv-00683) have become the latest defendants in the rebooted campaign of Princeps Secundus LLC over a single “universal keyboard” patent. Cases against Alphabet (Google), Apple, ASUSTek, Lenovo (Motorola Mobility), and Samsung are already active in the campaign, with Princeps targeting the defendants’ provision of mobile devices—smartphones, tablets, and/or others (e.g., Apple’s iPod)—with keyboard setup and selection features that allow users to switch between keyboards in various languages and/or a menu of emojis.