ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,905, issued on April 29, was assigned to RTX Corp. (Farmington, Conn.).

"Rotor assembly for gas turbine engines" was invented by Jason Husband (South Glastonbury, Conn.), James Glaspey (Farmington, Conn.) and Aaron John Pepin (West Hartford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor assembly for a gas turbine engine includes a rotatable hub that has a main body and an array of annular flanges that extend about an outer periphery of the main body to define an array of annular channels. An array of airfoils are circumferentially distributed about the outer periphery. Each one of the airfoils includes an airfoil section extending from...