ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,469,905, issued on Nov. 11, was assigned to Zhuhai CosMX Battery Co. Ltd. (Zhuhai, China).
"Button cell and electronic equipment" was invented by Ning Peng (Zhuhai, China) and Bin Xie (Zhuhai, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A button cell includes a housing and a cover plate assembly, the housing including a bottom wall and an annular side wall integrally formed with the bottom wall, the cover plate assembly including a head cover, a conductive member and a conductive covering member. The middle area of the head cover has a through hole, and the conductive member covers the through hole and is connected with the head cover in an ins...