ALEXANDRIA, Va., April 21 -- United States Patent no. 12,604,982, issued on April 21, was assigned to Emomo Technology (Zhejiang) Co. Ltd. (Huzhou, China).

"Electric seat mechanical extension device and electric seat" was invented by Yushu Zhao (Huzhou, China), Wencai Li (Huzhou, China) and Kai Jin (Huzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric seat mechanical extension device and an electric seat are provided. The electric seat mechanical extension device comprises two mechanical extending units which are bilaterally symmetrical with each other, each mechanical extending unit is composed of a seat frame support assembly, a leg assembly and a backrest bar, the two mechanical extend...