ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,337, issued on Feb. 3, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY Co. Ltd. (Ningde, China).

"Liquid injection system for battery and transfer device thereof" was invented by Tongzhang Liao (Ningde, China), Jian Zhang (Ningde, China) and Hongyan Liao (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid injection system includes a rotatable turnplate, a fixture, and a transfer device. Mounting regions are arranged on the turnplate at intervals in a circumferential direction of the turnplate. One of the turnplate and the fixture is provided with a plug-in slot, and the other is provided with a plug-in piece. The plug-in piece is i...