ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,972, issued on June 30, was assigned to GM Global Technology Operations LLC (Detroit).

"Control of mobile telecommunication devices" was invented by Scott T. Droste (West Bloomfield, Mich.), Khaled Rabbah (Canton, Mich.) and Mohammad Ishfaq (Northville, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a mobile telecommunications device connected to a first mobile telecommunications network having a country code identifying a first country includes determining whether the mobile telecommunications device crosses from the first country into a second country. The method also includes, if the mobile telecommunications device c...