ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,117, issued on Sept. 23.
"Light-emitting device" was invented by Ming-Ken Chen (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a light-emitting device including a body, light-emitting portion, socket, and battery holder. The body includes two casings fitted together to form therebetween a hollow-core receiving space. The body engages with a handle portion. The light-emitting portion is disposed above the body. The socket has a projection lamp module. The battery holder is disposed below the body, adapted to hold at least one battery, and electrically connected to the projection lamp module and a waterproof plastic switch....