ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,506, issued on May 19, was assigned to Ventiva Inc. (Fremont, Calif.).

"Heat transfer using ionic pumps" was invented by Rudy Vadillo (Gilroy, Calif.), Carl Paul Schlachte (Ben Lomond, Calif.) and Himanshu Pokharna (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Heat transfer devices are based on using one or more ionic pumps to circulate a dielectric working fluid around a closed circulation path, which may be contained in a conduit. The working fluid may be a liquid or a gas. The ionic pumps are disposed along the closed circulation path. The pumps include an emitter and collector. When a voltage is applied to the emitter, the work...