ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,169, issued on Aug. 11, was assigned to RTX Corp. (Farmington, Conn.).

"Ceramic matrix composites and their preforms" was invented by Kathryn Sarah Read (Marlborough, Conn.), Brendan Michael Lenz (North Branford, Conn.), James T. Roach (Vernon, Conn.), Steven R. Clarke (Mansfield, Mass.) and Aaron Tomich (Sutton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preform comprising a first sub-laminate comprising a plurality of layers and a second sub-laminate comprising a plurality of layers. The first sub-laminate comprises a first unit cell comprising a first volume fraction of tows, where the first volume fraction of tows comprise first tows...