ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,399, issued on April 21, was assigned to Praxair Technology Inc. (Danbury, Conn.).
"Liquid nitrogen energy storage system" was invented by Neil M. Prosser (Lockport, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid nitrogen energy storage (LNES) system that includes a liquid charging mode and a power generating mode is provided. The disclosed liquid nitrogen energy storage system comprises a nitrogen liquefier designed to cool or liquefy a first portion of the gaseous nitrogen and a cold recovery heat exchanger designed to cool or liquefy a second portion of the gaseous nitrogen during a liquid charging mode and to warm a liquid nitroge...