ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,147, issued on July 21, was assigned to ICON Technology Inc. (Austin, Texas).

"3D printable cementitious ink including electromagnetic pulse resistant binders" was invented by Alexander Le Roux (Austin, Texas), Theodore Richard Cera (Austin, Texas), J. Cole Sargent (Austin, Texas), Aida Margarita Ley Hernandez (Austin, Texas), Daniel Galvez Moreno (Austin, Texas) and Kunal Kupwade-Patil (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic interference (EMI) resistant cementitious ink comprising a hydraulic cement, calcium carbonate, silica sand, taconite material, and a conductive material. A ratio of the silica sand to t...