ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,058, issued on March 17, was assigned to H2CREO Corp. (Dover, Del.).

"Liquid hydrogen fuel tank and liquid hydrogen storage device including same" was invented by Jong H Baik (Titusville, Fla.), Jeong Hyun Im (Yeongwol-gun, South Korea), Hyung Jin Kim (Yongin-si, South Korea) and Sung Yong Kim (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid hydrogen fuel tank including a container is disclosed. The container includes an outer tank and an inner tank; a gaseous hydrogen discharge pipe configured to allow gaseous hydrogen to flow therein; a liquid hydrogen supply pipe, of which a portion is located inside the gaseous hy...