ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,735, issued on Aug. 4, was assigned to RTX Corp. (Farmington, Conn.).

"Introducing steam into core air upstream of turbine engine diffuser plenum" was invented by Stephen K. Kramer (Cromwell, Conn.), Lance L Smith (West Hartford, Conn.) and Zhongtao Dai (West Hartford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aircraft propulsion system is provided that include a propulsor rotor, a turbine engine core and a steam system. The turbine engine core is configured to power the propulsor rotor. The turbine engine core includes a core flowpath, a compressor section, a combustor section and a turbine section. The core flowpath extends through th...