ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,699, issued on Oct. 21, was assigned to Remacro Technology Co. Ltd. (Suzhou, China).

"Sofa seat frame, sofa base assembly, sofa and sofa production and assembly process" was invented by Weiming Chen (Jiangsu, China) and Xiaohong Li (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a sofa seat frame, a sofa base assembly, a sofa and a sofa production and assembly process, the sofa seat frame comprises two cross beams arranged at intervals and two longitudinal beams connecting the two cross beams, wherein a plurality of supporting elastic pieces are arranged between the two cross beams; and each longitudinal beam c...