ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,638, issued on Aug. 19, was assigned to Signifier Medical Technologies Ltd. (London).

"Oral muscle training" was invented by Anshul Sama (Nottingham, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device (100) for training oral muscle tone, the device (100) includes a mouthpiece (103) having a first and second arm (131) diverging away from one another and each carrying at least one electrode means (132a, 132b, 133a, 133b), at least one of the at least one electrode means protruding proud of adjacent portions of the arms (131), electrical circuitry operatively connected to the electrode means (132a, 132b, 133a, 133b), at least one of ...