ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,731, issued on Feb. 17, was assigned to XIAMEN SET ELECTRONICS Co. LTD. (Xiamen, China).

"Box core module, plug module, and surge protective device (SPD)" was invented by Jian Ye (Xiamen, China) and Xianggui Zhang (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A box core module, a plug module, and a surge protective device (SPD) are provided. The plug module includes a housing, bottom plates, a plurality of box core modules with an independent tripping mechanism, a first pin electrode, and a second pin electrode. The plurality of box core modules are vertically arranged on a side of the bottom plates in a side-by-side or opposite mann...