ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,672, issued on Oct. 21, was assigned to Peridot Print LLC (Palo Alto, Calif.).

"Three-dimensional printing" was invented by Emre Hiro Discekici (San Diego), Shannon Reuben Woodruff (San Diego), Krzysztof Nauka (Palo Alto, Calif.) and Vladek P. Kasperchik (Corvallis, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example of an ultraviolet (UV) light fusing agent for three-dimensional (3D) printing includes a vehicle and a multi-functional antioxidant and UV light absorber dispersed in the vehicle. The vehicle includes water and a water miscible or water soluble organic solvent. The multi-functional antioxidant and UV light absorber includes a...