US Patent Issued to SHANGHAI SHIFT ELECTRICS on June 2 for "Toothbrush" (Chinese Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,348, issued on June 2, was assigned to SHANGHAI SHIFT ELECTRICS Co. LTD. (Shanghai).

"Toothbrush" was invented by Zhenwu Xu (Shanghai), Xiaoguo Dai (Shanghai), Changjin Zhang (Shanghai) and Hongtao Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toothbrush including a handle; a head; a connection structure including a first rotating disc and a second rotating disc that coaxially rotate, the first rotating disc being connected to the head/handle and the second rotating disc being connected to the handle/head, and a rotation axis of the first rotating disc and the second rotating disc being perpendicular to an extension direction of th...