ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,022, issued on Feb. 17, was assigned to Shanghai Wudi Home Furnishings Co Ltd (Shanghai).
"Folding sofa" was invented by Peng Wu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A folding sofa is provided. The folding sofa includes multiple folding parts, where the folding parts include seat cushion frames, backrest frames, rotating locking elements, and support elements; the seat cushion frame and the backrest frame are rotationally connected, and are locked by the rotating locking element; the support element is provided inside the seat cushion frame and the backrest frame; multiple first seat cushion support legs are detachably provided b...