ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,691, issued on April 7, was assigned to GODELMANN GMBH & Co. KG (Fensterbach, Germany).
"Method of and device for producing concrete blocks" was invented by Bernhard Godelmann (Kummersbruck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of producing concrete blocks for creating a surface covering, wherein each concrete block comprises a multiple-layer concrete block body with at least one level concrete block underside and, opposite the at least one level concrete black underside, an essentially flat concrete block upper side, wherein the multi-layer concrete block body comprises a first concrete block layer designed as a facing co...