ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,176, issued on March 17, was assigned to OERLIKON SURFACE SOLUTIONS AG, PFAFFIKON (Pfaffikon, Switzerland).

"Overlay coating resistant to molten calcium-magnesium-alumino-silicate" was invented by Bernhard Kohlhauser (Vienna), Helmut Schoech (Feldkirch, Austria), Beno Widrig (Bad Ragaz, Switzerland) and Juergen Ramm (Maienfeld, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A CMAS resistant overlay coating including at least one CMAS resistant layer, wherein the overlay coating is i. disposed over a surface of a substrate including a material susceptible to CMAS corrosion, ii. includes a metal oxide matrix and iii. has at least partiall...