In May 2023, XR Communications, LLC (d/b/a Vivato Technologies) filed separate cases against AT&T (AT&T Mobility), Deutsche Telekom (T-Mobile), and Verizon (Verizon Wireless) in the Eastern District of Texas, accusing each of infringing five wireless communications patents. Both Ericsson and Nokia have since intervened in that litigation. Two additional patents, in the same asserted family, have now issued to the plaintiff, one in early September and the other in early October, prompting another round of complaints, one against each of the three wireless carriers, all filed again in the Eastern District of Texas where District Judge Rodney Gilstrap is presiding over the litigation.