ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,402,604, issued on Sept. 2.

"Three-point quick-threading buckle and traction leash with quick-threading buckle" was invented by Kuo-Ming Li (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a three-point quick-threading buckle and a traction leash with the quick-threading buckle, including a leash body, and a quick-threading buckle and a limiting buckle. A first mounting hole, a second mounting hole and a third limiting hole are formed in the quick-threading buckle, the first mounting hole and the second mounting hole are respectively formed on left and right sides of the quick-threading buckle, the third limiting hole is disp...