ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,565, issued on Sept. 15, was assigned to Colorado School of Mines (Golden, Colo.).

"Ore pelletizing compositions, devices, systems, and methods using automotive paint sludge as a binder" was invented by Victoria Vaccarezza (Golden, Colo.) and Corby Anderson (Golden, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are methods and compositions useful in recycling automotive paint sludge in the formation of ore pellets. In many embodiments, the pellets are iron ore pellets comprising magnetite ore, and one or more of limestone and bentonite. The automotive paint sludge may be water based or other solvent based. In many embodiment...