XR Communications, LLC (d/b/a Vivato Technologies) has filed additional suits against existing campaign defendants Microsoft (6:23-cv-00124) and Samsung (6:23-cv-00125), targeting certain devices—for Microsoft, Surface-series convertible laptops; and for Samsung, Galaxy-series smartphones and tablets and Samsung-series TVs—that support MIMO and/or MU-MIMO technologies with a wireless communications patent already in suit against both. The new cases have been filed in the Western District of Texas, with litigation also active in the campaign in the Central and Northern Districts of California, as well as before the Patent Trial and Appeal Board (PTAB).