ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,127, issued on June 3, was assigned to HANON SYSTEMS (Daejeon, South Korea).

"Heat pump arrangement with indirect battery heating for battery-operated motor vehicles and method of operating a heat pump arrangement" was invented by Navid Durrani (Kerpen, Germany), Tobias Haas (Cologne, Germany) and Charles Wainwright (Chelmsford, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat pump arrangement and a method of operating a heat pump arrangement. The heat pump arrangement has a refrigerant circuit and a coolant circuit, wherein the coolant circuit is configured for indirect battery heating. The refrigerant circuit includes a compresso...