ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,907, issued on Oct. 20, was assigned to SHENZHEN TIAN HAO EQUIPMENT PTY LTD (Shenzhen, China).

"Lithium battery winding needle" was invented by Shengke Si (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a lithium battery winding needle. A first arc-shaped column, a second arc-shaped column, a third arc-shaped column, and a fourth arc-shaped column are enclosed in sequence to form a cylindrical hollow chamber structure. The first arc-shaped column and the second arc-shaped column are hinged to each other by means of a first hinge point. The second arc-shaped column and the third arc-shaped column are h...