ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,654, issued on March 25, was assigned to HS R & A Co. LTD. (Gyeongsangnam-do, South Korea).

"Jig device for laser welding and jig system including the same" was invented by Seung Hoon Sung (Busan, South Korea), Young Jun Kim (Gyeongsangnam-do, South Korea) and Jung Hyun Shin (Busan, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A jig device for laser welding of the disclosure includes a jig body having a semi-oval shaped seating groove in which a lower side of a refrigerant pipe to which a charging port is coupled is seated; a first pressing block provided in an upper portion of one side of the jig body and having a first groove part c...