ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,839, issued on June 3, was assigned to GOODRICH Corp. (Charlotte, N.C.).

"Am cylinder manufacturing method using sacrificial build tube" was invented by Jason Bradley Allen (Waco, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An additive manufacturing system and process for manufacturing aircraft parts is disclosed. The process applying an additive manufacturing process to a build tube formed around a longitudinal axial direction of the build tube by rotating the build tube around a longitudinal axis. Then, translating, by the additive manufacturing process, a print-head in a parallel configuration to the longitudinal axis to enable the print-...