ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,287, issued on May 12, was assigned to ARC IMPACT ACQUISITION Corp. (Burlington, Mass.).

"Systems and methods for powder bed density measurement and control for additive manufacturing" was invented by George Hudelson (Billerica, Mass.), Paul Hoisington (Burlington, Mass.), Richard Remo Fontana (Cape Elizabeth, Mass.), Emanuel Sachs (Newton, Mass.), Christopher Anthony Craven (Burlington, Mass.) and Matthew McCambridge (Burlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are disclosed for forming a three-dimensional object using additive manufacturing. One method includes depositing a first amount of powder material on...