ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,652, issued on Dec. 30, was assigned to MESSER SE & Co. KGAA (Bad Soden, Germany).
"Method and apparatus for additive manufacturing under protective gas" was invented by Bernd Hildebrandt (Tonisvorst, Germany) and Dirk Kampffmeyer (Linnich, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for additive manufacture of a workpiece under protective gas, wherein a workpiece is assembled from a sequence of workpiece contours, each of which is manufactured by selective sintering or melting of a powdery or wire-like material by applying an energy beam thereto, wherein a workpiece contour is manufactured under the effe...