ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,977, issued on May 27, was assigned to General Electric Co. (Evendale, Ohio).
"Turbine engine with a primary stage of airfoils and a subsidiary stage of airfoils" was invented by Arthur William Sibbach (Boxford, Mass.), Nicholas Joseph Kray (Mason, Ohio) and Benjamin Thomas Van Oflen (Cincinnati).
According to the abstract* released by the U.S. Patent & Trademark Office: "A turbine engine with an engine core defining an engine centerline and comprising a rotor assembly and a stator assembly. The turbine engine including a primary stage of airfoils circumferentially arranged about the engine centerline and defining at least a portion of the rotor assembly. A subsidiary stage of ai...