ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,483, issued on May 27, was assigned to Doosan Enerbility Co. Ltd. (Changwon-si, South Korea).
"Method of repairing rotating machine part" was invented by Sun Woo Ryu (Busan, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of repairing a rotating machine part. The method includes removing a damaged portion of a front end of an airfoil part of the rotating machine part, manufacturing a repair coupon having the same shape as the removed damaged portion by using a base material in an additive manufacturing method, and coupling the repair coupon manufactured through the manufacturing of the repair coupon to the front end of the airfoi...