ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,046, issued on Jan. 27, was assigned to INNOVATOR ENERGY LLC (Houston).

"Fluid displacement energy storage systems and processes to enable pressure equilibrized subsea tank" was invented by Ethan Novek (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application pertains to processes and systems for storing or generating power. A representative method stores energy by pumping a first fluid having a first density from a first reservoir at a first elevation to a second reservoir at a second elevation using a first fluid pump and pumping a second fluid having a second density from the second reservoir to the first reservoir using a s...