ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,172, issued on June 2, was assigned to KISWEL LTD. (Busan, South Korea).

"Retainer ring for welding wire" was invented by Ho Kyu Kang (Changwon-si, South Korea), Seong Hun Kim (Changwon-si, South Korea), Chang Uk Song (Changwon-si, South Korea), Kyo Hun Kim (Changwon-si, South Korea) and Hwi Chul Park (Changwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a retainer ring for welding wire, the retainer ring including a pressure plate which is disposed on a welding wire stack wound and stored in a receiving container so as to press the welding wire stack, and has an opening formed at the center thereof; and a plurality of ...