US Patent Issued to Supercritical Storage on June 17 for "Waste heat integration into pumped thermal energy storage" (Ohio Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,664, issued on June 17, was assigned to Supercritical Storage Co. Inc. (Akron, Ohio).

"Waste heat integration into pumped thermal energy storage" was invented by Jason A. Mallinak (Akron, Ohio), Timothy J. Held (Akron, Ohio) and Jason D. Miller (Hudson, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technique increases the round-trip efficiency ("RTE") of a pumped thermal energy storage system by changing the coefficient of performance ("COP") and efficiency of the cycles by changing the temperature ratios of each, which is accomplished by using two separate low temperature reservoirs ("LTRs") that are at different temperatures. More particul...