ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,990, issued on March 11, was assigned to Terion AG (Buchs, Switzerland).

"Filler made from sorted waste materials for the production of cement-bound shaped bodies" was invented by Jurgen Steinmuller (Ventnor, Great Britain), Peter Merkel (Kitzingen, Germany) and Martin Dreismann (Rottendorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filler for production of cement-bound shaped bodies, comprising a material group mixture of comminuted and sorted waste materials, conditioned with chemical reagents/compounds in the presence of water, wherein the material group mixture is composed of comminuted and sorted waste materials, selected from t...