ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,840, issued on July 1, was assigned to Rheem Manufacturing Co. (Atlanta).

"Battery-integrated heat pump systems and methods thereto" was invented by Christopher Day (Colleyville, Texas), Sivakumar Gopalnarayanan (Plano, Texas) and Yang Zou (Frisco, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed technology includes devices, systems, and methods for a battery-integrated heat pump system. The disclosed technology can include a heat pump system having a battery, a compressor, and a variable speed drive in electrical communication with the battery and the compressor. The variable speed drive can be configured to control a speed of the ...