ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,240, issued on March 18, was assigned to Lockheed Martin Corp. (Bethesda, Md.).
"Commonly manufactured rotor blade" was invented by Joshua A. Breon (Lafayette, Ind.), Eric S. Parsons (Middlebury, Conn.), Timothy James Conti (Shelton, Conn.) and Frank M. Caputo (Cheshire, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor blade configured to be installed on a rotary wing aircraft includes a spar including an inboard portion extending from a root of the rotor blade to a first spanwise position of the rotor blade and an outboard portion meeting the inboard portion at the first spanwise position. The rotor blade further includes an upper skin...