ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,211, issued on April 7, was assigned to HarbisonWalker International Inc. (Moon Township, Pa.).

"Refractory lining design and separation via destructive hydration" was invented by David Hartwich (Bethel Park, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of separating a mixture of used refractory components of different chemistry types obtained from a demolished refractory includes hydrating the mixture of refractory components to destructively hydrate at least some components of the mixture of refractory components, and separating, based on size, the at least some components from other components of the mixture of refractory component...