ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,466, issued on Dec. 9, was assigned to Arizona Board of Regents on behalf of Arizona State University (Scottsdale, Ariz.).

"Protective ceramic coatings for metal substrates" was invented by Rafiqul Islam (Gilbert, Ariz.) and Francois Perreault (Tempe, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coated substrate includes a metallic substrate and a ceramic coating on the metallic substrate. The ceramic coating includes one or more layers, and a total thickness of the ceramic coating is in a range of 2 nm to 200 nm. Coating a metallic substrate includes disposing a first ceramic coating layer on the metallic substrate and disposing one or mor...