ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,947, issued on Dec. 2, was assigned to Airbus Operations SAS (Toulouse, France).

"Tank, in particular for a liquid hydrogen reservoir, provided with internal rails for putting an equipment module in place" was invented by Damien Guilloteau (Toulouse, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tank, in particular for a liquid hydrogen reservoir, provided with internal rails for putting an equipment module in place, includes a central portion provided with a wall, and at least one rail and preferably a plurality of rails, each of the rails being integrated in the wall of the central portion of the tank so as to be accessible from inside th...