ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,682, issued on July 28.
"Sofa structural frame and sofa thereof" was invented by Xuhui Chen (Huzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sofa structural frame comprises a plurality of sofa modules, seat frame components, splicing pieces and supporting pieces which are combined to form a sofa frame, wherein the sofa modules comprise a backrest frame and armrests made by a molding process, the armrests are arranged on the two sides of the backrest frame by the splicing pieces, and the seat frame components are arranged between the armrests on two sides by the supporting pieces; connecting parts are formed on the surfaces of the armr...