ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,007, issued on June 3.

"Foldable sofa" was invented by Jiqiang Sun (Ningbo, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present invention is a foldable sofa includes a first base block, where an upper side of the first base block serves as a first use face, a side face of one side of the first base block serves as a front face, a first backrest fence is arranged on the first use face, a first fence groove which faces the front face and matches a human body is provided in the first backrest fence, and the first fence groove and the first use face cooperate to enclose a sofa use portion. A second base block is arranged on a lo...