ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,250, issued on June 23, was assigned to RTX Corp. (Farmington, Conn.).

"Aircraft with symmetric propulsion system rotating patterns" was invented by Andrew E. Breault (Bolton, Conn.), Jeffrey T. Morton (Manchester, Conn.) and Jon E. Sobanski (Glastonbury, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first core turbine rotor of a first propulsion system is disposed in a first core turbine section and is configured to rotate in a first rotational direction. A first power turbine rotor is disposed in a first power turbine section and is configured to rotate in the first rotational direction. The first power turbine rotor is operatively couple...