ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,789, issued on Dec. 9.
"Charging emergency light bulb" was invented by Zhiguo Feng (Zhongshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A charging emergency light bulb is provided, which includes a lamp head, a lamp housing, a lampshade, and an electrical component. The lamp head is fixedly provided at one end of the lamp housing, and the lampshade is fixedly provided at the other end of the lamp housing; the electrical components include a PCB board and a battery. The PCB board is fixedly provided in the lamp housing and electrically connected to the lamp head. The PCB board is fixed on one side of the lampshade and electrically connecte...