ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,258, issued on Feb. 10, was assigned to RTX Corp. (Farmington, Conn.).

"Acoustic treatment made by additive manufacturing" was invented by Benjamin G. Gardell (Bristol, Conn.) and Michael Raymond LaFavor (Otisfield, Maine).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic treatment for use in an acoustic treatment for a gas turbine engine includes a sheath having a plurality of perforations. A plurality of cell structures extends from the sheath such that the sheath and the cell structures are a monolithic component. The plurality of perforations of the sheath are formed by filaments of a first material that define a first dimension of the p...