ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,170, issued on Jan. 27, was assigned to Feature-Tec (Shanghai) New Materials Co. Ltd. (Shanghai).

"Sealing pipe joint made of resin" was invented by Xuegua Liu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing pipe joint made of resin includes a joint body, an inner ring, and a nut. The inner ring includes a plug head, the joint body includes a slot portion, the plug head is inserted within the slot portion to form a sealing connection. The nut is connected to the join body to maintain the plug head and the slot portion in a plugged state, the nut presses against the inner ring. In a free state, a radius thickness of the plug head i...