ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,504, issued on June 3, was assigned to Hourglass Medical LLC (Monticello, Ill.).

"Head-mounted illumination devices" was invented by Jeremy B. Ross (Monticello, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Illumination devices as include a frame intended to be worn by a user and one or more light sources (e.g., LEDs) positioned by the frame so as to be near a user's zygomatic bones and oriented to project light in a direction of the user's view when the illumination device is worn on the wearer's head. The frame may be shaped to be worn over the user's ears and behind the user's head, and may be made of one or more of plastic, metal and/or a m...