ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,115, issued on May 20, was assigned to Textron Innovations Inc. (Providence, R.I.).

"Tooling method for molding composite ducts" was invented by Christopher Lee Connell (Wichita, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mandrel mold tool for forming a mandrel includes a plurality of mandrel mold tool members that are configured for fastening together to form a mandrel mold tool having an internal compartment. The plurality of mandrel mold tool members each include an outer wall, an inner wall adjacent the outer wall, and an interior portion between the outer wall and the inner wall. The interior portion has a sparsely-infilled structure...