ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,004, issued on Sept. 30, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).

"Using unique identifiers to limit duplicate alert messages communicated over a telecommunications network" was invented by Terri Leigh Brooks (Prosper, Texas) and Timothy N. Dunn (Issaquah, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An alert broadcast system can receive a first alert message indicating an emergency from an alert management system. The first alert message generated by an emergency alert originator can include a unique identifier associated with the emergency. The alert broadcast system can forward the first alert message to a first group of wire...