ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,318, issued on Nov. 25, was assigned to AC3D INC. (San Francisco).

"Gantry-type 3D printer" was invented by Dmitrij Konshin (Balashiha, Russia) and Boris Kozlov (Moscow).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gantry-based 3D printer contains two vertical columns, connected with each other by a horizontal fixed beam, designed with the possibility of moving along rail guides. The rails are mounted on the printer base. A cross beam is installed on the vertical columns designed with the possibility of moving in the vertical direction; and the carriage with the print head attached to it and the possibility of longitudinal movement is mounted on ...