ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,850, issued on June 23, was assigned to SprintRay Inc. (Los Angeles).
"Replaceable screen cartridge system for three-dimensional printers" was invented by Huijian Tian (Los Angeles), Abdol Hossein Bassir (Los Angeles) and Shukun Ye (Los Angeles).
According to the abstract* released by the U.S. Patent & Trademark Office: "A replaceable illumination cartridge system for three-dimensional (3D) printers. The illumination cartridge system includes a cradle assembly that is mounted to an underneath side of a resin tank in a 3D printing system. An illumination cartridge assembly is removably attached to and supported by the cradle for use in providing resin-curing light into the resin t...