ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,420, issued on Sept. 23, was assigned to GUANGDONG SWEETNIGHT INNOVATION TECHNOLOGY Co. LTD. (Foshan, China).
"Sofa" was invented by Shuimu Huang (Maoming, China), Yiqun Chen (Guangzhou, China), Yimeng Li (Zhaoqing, China) and Zijian Zhang (Zhanjiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sofa belonging to a technical field of household sofas and being simple in assembly and disassembly and suitable for small dwelling-size apartment is provided. The sofa includes a bottom box, two groups of wing-type armrests, a backrest, two groups of seat cushions, and two groups of backrest cushions. The two groups of the wing-type armrests expa...