ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,219, issued on July 1, was assigned to Hitemco LLC (Old Bethpage, N.Y.).

"Coating system for refractory metals" was invented by Charles Clifford Berger (New City, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coating system includes a diffusion coating on a refractory metal or refractory metal alloy. The coating can be applied to a component such as a rocket engine component that includes a substrate including the refractory metal and is useful to protect the substrate from high temperature oxidation. The diffusion coating process employs an activator that includes a compound of the metal to be diffused into the surface of the substrate and i...