Rondevoo Technologies, LLC has added ZTE (1:18-cv-06212) to the litigation campaign that it began in June of this year with cases filed against LG Electronics (LGE) in the District of Delaware and Sony in the Northern District of Illinois. The NPE has targeted the ability to enter alternate (i.e., accented) characters through the keypads of certain Android smartphones—in this latest complaint, calling out ZTE’s Max XL. Rondevoo asserts a single patent generally related to “clustering” keys on an input device, such as telephone keypad or computer keyboard, to facilitate selection entry. Rondevoo pleads that the “inventors” recognized “a need for improving cluster key arrangements for mobile devices such as cell-phones”, citing to the patent’s abstract for the statement that “[t]his cluster key arrangement may be mechanically configured or electronically configured”. The deadlines to answer or otherwise respond have been extended to September 17 and October 14 for LGE and Sony, respectively.