ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,499, issued on May 5, was assigned to THORIUM POWER INC. (McLean, Va.).

"Fuel assembly" was invented by Sergey Mikhailovich Bashkirtsev (Moscow), Valentin Fedorovich Kuznetsov (Moscow), Valery Vladimirovich Kevrolev (Moscow), Alexey Glebovich Morozov (Moscow) and Michael H. Montgomery (Hamilton, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel assembly includes a plurality of elongated fuel elements. Each of the plurality of fuel elements has a spirally twisted, multi-lobed profile that defines a plurality of spiral ribs. Each of the plurality of fuel elements has a fuel kernel that includes fuel material disposed in a matrix of metal non-fue...