ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,773, issued on Dec. 2, was assigned to LET ENGINEERING Co. LTD. (Hwaseong-si, South Korea).
"Liquid oxygen vent silencer used in oxygen production process" was invented by Ju Sik Lee (Ansan-si, South Korea), Hyung Dong Lee (Gyeonggi-do, South Korea), Sun Byeul Jo (Gyeongsan-si, South Korea), Won Myeong Seo (Incheon, South Korea), Tae Kyu Kim (Asan-si, South Korea) and Dong Guen Lee (Ansan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a liquid oxygen vent silencer used in an oxygen production process implemented so as to eliminate potentially explosive elements, and the vent silencer is manufactured u...