Ironworks Patents LLC has added a Northern District of Texas lawsuit against ZTE (3:19-cv-00513) to the long-running mobile devices campaign, begun in March 2010, that Ironworks took over from MobileMedia Ideas LLC in mid-2017. The NPE asserts a set of five familiar patents, generally related to alerts, including tactile alerts, on a “mobile station”, that includes the four patents asserted in a January case filed against ASUSTek in the Eastern District of Texas. These new suits follow dismissals in prior litigation against Apple, BLU Products, and TCL Communication, as well as an appeal to the Federal Circuit from a stipulated final judgment entered in a Northern District of California case filed against Samsung. Ironworks has targeted features on smartphones and tablets for silencing “alert sounds” announcing, e.g., the receipt of a call, alleging that it began communications with ZTE about the portfolio now asserted in litigation starting in June 2010.