ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,974, issued on June 17, was assigned to ARKEON ENERGY (Saint-Cyr-L'Ecole, France).
"Heat pump and phase-change energy storage device" was invented by Philippe Chauvin (Saint-Cyr-L'Ecole, France), Hadrien Othnin-Girard (Hamburg Allemagne, Germany) and Theo Granger (Paris).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a heat pump including a system for conveying a refrigerant fluid between two heat exchangers, the refrigerant fluid circulating through a closed circuit; at least two heat exchangers, at least one of the first and second heat exchangers including a plurality of energy storage devices collecting a portion of the energy o...