ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,120, issued on July 21, was assigned to Rondo Energy Inc. (Alameda, Calif.).

"Thermal energy storage systems with an energy emitting surface" was invented by John Setel O'Donnell (Oakland, Calif.) and Yusef Desjardins Ferhani (Menlo Park, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 900deg C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat may be delivered by radiation from one or more emitting surfaces of the solid medium. The delivered heat may be used for process...