ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,092, issued on April 8, was assigned to Arcam AB (Molnlycke, Sweden).

"Apparatus and method for forming a three-dimensional article" was invented by Safdar Ali (Gothenburg, Sweden) and Kristofer Karlsson (Kungsbacka, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together with an electron beam from an electron beam source so as to form the article according to a computer model thereof. The apparatus includes a chamber a chamber having a first section and a second section openly connected to each other. The f...