ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,904, issued on April 21, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit) and SEKISUI Aerospace Inc. (Sumner, Wash.).

"Methods for compression molding multi-layered and multi-functional thermoplastic composite structures" was invented by David A. Okonski (Waterford, Mich.), Selina Xinyue Zhao (Rochester Hills, Mich.), Mary Gilliam (Farmington Hills, Mich.), Blair E. Carlson (Ann Arbor, Mich.), Scott James (Buckley, Wash.) and Daniel Miranda (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a multi-layered and multi-functional thermoplastic composite structure includes supplying a plurality of reinforcin...