ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,785, issued on Nov. 3, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Powder deposition apparatuses and methods" was invented by Lianyi Chen (Middleton, Wis.) and Luis Izet Escano (Madison, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the disclosure are directed to powder deposition apparatuses and methods. Certain aspects involve a powder bed including sidewalls and a stepped substrate having respective steps at different thicknesses relative to the other steps, the sidewalls and stepped substrate forming an enclosure to hold powder. A powder spreader, including a blade and an actuator, may actuate the blade...