ALEXANDRIA, Va., May 12 -- United States Patent no. 12,626,946, issued on May 12, was assigned to UOP LLC (Des Plaines, Ill.).

"Protective layer for an electrolyte in a flow battery" was invented by Jinfeng Wu (Kildeer, Ill.) and Stuart R. Miller (Arlington Heights, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A protective layer for an electrolyte in a flow battery and an electrolyte tank having a protective layer. The protective layer includes a light oil that includes hydrophobic hydrocarbons. The light oil having a density lower than a density of the electrolyte, the hydrophobic hydrocarbons being non-reactive to the electrolyte. The protective layer may be a liquid layer or may include a substrate...