ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,325, issued on March 31, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Liquid metal cooled nuclear reactor comprising a passive decay heat removal system having thermal insulation attached to a wall of a cold source reservoir that holds a phase change material, where the insulation is arranged to automatically fall by gravity from the wall in response to the wall reaching a predetermined temperature" was invented by Jerome Pouvreau (Grenoble, France), Laurent Brissonneau (Saint Paul Lez Durance, France) and Alessandro Pantano (Saint Paul Lez Durance, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ...