ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,092, issued on Feb. 24, was assigned to RTX Corp. (Farmington, Conn.).

"Coating for aluminum alloy aerostructures" was invented by Lei Chen (South Windsor, Conn.), James O. Hansen (Hobe Sound, Fla.), Promila P. Bhaatia (Farmington, Conn.), Mark E. Simonds (Kennebunk, Maine), Nicholas E. England (Alexandria, Va.) and William F. Bogue (Hebron, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An airfoil element including an airfoil having a pressure side and a suction side, an aluminum alloy substrate and a coating system atop the substrate, said coating comprising in at least one location an anodize layer (24) having a thickness (TA) of 1.0 to 5.0...