ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,601, issued on Nov. 4, was assigned to Rolls-Royce North American Technologies Inc. (Indianapolis).

"Plug nozzle and thrust reverser for high mach gas turbine engines" was invented by Kenneth M. Pesyna (Indianapolis) and Andrew M. Simonich (Indianapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propulsion unit includes a gas turbine engine and an exhaust nozzle coupled to an aft end of the gas turbine engine. The exhaust nozzle is configured to interact with exhaust gases exiting the gas turbine engine in an aft direction. The exhaust nozzle includes an outer nozzle case and an inner plug that cooperate to define an exhaust flow path therebetw...