ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,952, issued on July 22.

"Process and apparatus for the granulation of slag deriving from iron and steel production" was invented by Marta Guzzon (Pero, Italy), Enrico Malfa (Zanica, Italy), Lucio Bozzetti (Arona, Italy), Mattia Bissoli (Bovolone, Italy) and Fabio Praolini (Cantello, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for the granulation of slag deriving from iron and steel production, in particular a process for the granulation of slag in air, and an apparatus configured to perform this process, provide for the production of granulates with different characteristics depending on the intended use, thus making this process ...