ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,257, issued on June 17, was assigned to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co. LTD. (Shaoxing, China).

"Expansion valve coil assembly" was invented by Lifeng Zheng (Shaoxing, China), Bin Wei (Shaoxing, China), Qingjun Zeng (Shaoxing, China) and Jiyou Zhang (Shaoxing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an expansion valve coil assembly, comprising a coil unit and a housing, wherein the coil unit is provided with a mounting platform, the mounting platform is provided, in a partially protruding manner, with a connecting part, and the housing is sheathed over the connecting part and is fixedly connected to the mounting p...