ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,292, issued on Nov. 3, was assigned to Massimiliano Perizzolo (Zenson di Piave, Italy).

"Plant for the treatment and recovery of white slag resulting from steelmaking processes" was invented by Massimiliano Perizzolo (Zenson di Piave, Italy) and Dario Buizza (Ospitaletto, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plant for the treatment and recovery of white slag resulting from steelmaking processes. The plant including at least one basic frame; at least one work chamber, movable in rotation around a relevant axis and configured to receive and treat the white slag, the latter being moved forward along at least one direction of treatment....