ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,021, issued on Feb. 17.
"Modular sofa assembly" was invented by Yilong Li (Guangdong, China), Mingbin Yang (Guangdong, China) and Guangzhong Li (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application pertains to the furniture technology field, providing an assembled sofa comprising at least two seat frames and two first connectors. Each long side of the seat frame has two spaced first mounting grooves, while each short side contains two spaced second mounting grooves, with identical spacing between first and second groove pairs. The first connector includes a connection section, two engagement portions, and two hook portion...