ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,912, issued on Oct. 28, was assigned to RTX Corp. (Farmington, Conn.).

"Supplemental thrust system for a gas turbine engine" was invented by Timothy S. Snyder (Glastonbury, Conn.) and Randolph T. Lyda (Tequesta, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An assembly is provided for a turbine engine. This turbine engine assembly includes a flowpath duct, a fuel injector assembly and a secondary duct. The flowpath duct includes a flowpath. The fuel injector assembly includes an inner flow passage. The fuel injector assembly is configured to mix fuel with first gas within the inner flow passage to provide a fuel-gas mixture. The fuel injector ...