ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,527,684, issued on Jan. 20, was assigned to SmartGuard Rx Inc. (Layton, Utah).

"Mandibular advancement device" was invented by David L. Spainhower (Huntsville, Utah) and Brian Larsen (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mandibular advancement device is described, and may include an upper portion for fitting to maxillary teeth and a lower portion for fitting to mandibular teeth. The system may include one or more connecting bars, which may be provided in varying lengths, that allow the upper portion and lower portion to be pivotably connected such that horizontal and vertical articulation are possible. A kit is also described, which ...