ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,669, issued on March 25, was assigned to Hangzhou United Tools Co. Ltd. (China) and Hangzhou Great Star Industrial Co. Ltd (China).
"Adjustable wrench" was invented by Weiyi Wang (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable wrench includes a wrench body, a second jaw and an adjustment mechanism, the wrench body including a first jaw, a neck and a handle, wherein the first jaw is a front end of the wrench body, and the neck is located between the first jaw and the handle. The first jaw is disposed opposite the second jaw to form a holding space for holding an object. The neck is provided with a through hole, the adju...