ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,029, issued on April 21, was assigned to Rheem Manufacturing Co. (Atlanta).

"Heat pump pool water heater systems and methods thereto" was invented by Hiram Osuna Carrasco (Oxnard, Calif.) and Jorge Miguel Gamboa Revilla (Oxnard, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed technology includes systems and methods for operating a pool water heating system. The pool water heating system can include a heat pump, a supplemental heat source, a water temperature sensor, and a controller. The controller can be configured to receive water temperature data and, in response to determining that the temperature of the water is less than a...