ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,319, issued on Jan. 20, was assigned to RTX Corp. (Farmington, Conn.).

"High pressure turbine blade double scarf cut" was invented by Alfonso Capetillo (Hamilton, Ohio) and William Reinhardt Jr. (Wethersfield, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A turbine blade includes a root section extending from a bottom side of a platform. The root section includes a first end and a second end aft of the first end. A first plurality of serrations is formed on a pressure side of the root section. A second plurality of serrations is formed on a suction side of the root section. Each serration of the second plurality of serrations extends on the s...