ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,813, issued on Aug. 25, was assigned to HOLCIM TECHNOLOGY LTD (Zug, Switzerland).

"Dry cementitious material mixture for 3D-printing" was invented by Benito Carrion Gomez (Holderbank, Switzerland), Helene Lombois-Burger (Holderbank, Switzerland), Qing Zhang (Holderbank, Switzerland), Sylvain Duchand (Holderbank, Switzerland) and Abdelaziz Labyad (Holderbank, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dry cementitious material mixture for 3D-printing, includes a hydraulic cement, at least one viscosity enhancing admixture, at least one accelerator and aggregates, wherein the at least one viscosity enhancing admixture is present in a...