ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,715, issued on May 27.

"Light bulb" was invented by Yuanlong Li (Hunan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a light bulb, including: an enclosure provided with a connection portion, the connection portion being provided with an opening in communication with an interior of the enclosure; a base connected to the connection portion of the enclosure, an inner side surface of the base being provided with a first conductive contact, and an inner end of the base away from the enclosure being provided with a second conductive contact; a light-emitting body including an alternating current filament, a first ...