ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,996, issued on May 6, was assigned to Rolls-Royce Corp. (Indianapolis).

"Energy storage system heater control methods" was invented by Stephen Andrew Long (Indianapolis), Michael Dougherty (Indianapolis), Tomasz Marek Lubecki (Singapore), Firman Sasongko (Singapore), Chandana Jayampathi Gajanayake (Singapore) and Michael Adam Zagrodnik (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of controlling an in-line heater for an energy storage device are provided. A determination is made that a pump is running. When running, the pump circulates a thermal management fluid through a thermal management conditioning loop, which includes the i...