ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,149, issued on June 2, was assigned to VulcanForms Inc. (Devens, Mass.).

"Melt pool control in additive manufacturing systems" was invented by Alexander Dunbar (Watertown, Mass.) and Raghav Aggarwal (Dracut, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for additive manufacturing are described. In some embodiments, a method of controlling a weld height in an additive manufacturing process includes determining a desired melt pool width based, at least in part, on a desired weld height; selectively activating one or more laser energy sources based, at least in part, on the desired melt pool width; and melting a portion of a l...