ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,609, issued on July 22, was assigned to Element Energy Inc. (Menlo Park, Calif.).

"Methods and systems for detecting variations in minor total-impedance contributors in electrochemical cells" was invented by Arnaud Devie (San Carlos, Calif.), Georgy Zerkalov (San Jose, Calif.), Rainer Johannes Fasching (Mill Valley, Calif.) and Nathan Brinkerhoff (Providence, R.I.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are methods and systems for detecting variation in minor total-impedance contributors in sets of electrochemical cells. For example, a method comprises maintaining a substantially constant current through the set of electroche...