ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,579, issued on Sept. 30, was assigned to Peridot Print LLC (Palo Alto, Calif.).

"Three-dimensional printing" was invented by Graciela E Negri Jimenez (San Diego), Shannon Reuben Woodruff (San Diego), Emre Hiro Discekici (San Diego) and Jason C Butler (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example of a jettable antioxidant formulation is for three-dimensional (3D) printing. The jettable antioxidant formulation includes an antioxidant blend; a surfactant, a dispersant, or a combination thereof; a water soluble or water miscible organic co-solvent; and water. The antioxidant blend consists of a primary antioxidant and a secondary...