ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,620, issued on July 15, was assigned to Rohr Inc. (Chula Vista, Calif.).

"Weight balanced rotor blade with thermoplastic composite weight" was invented by Daniel O. Ursenbach (El Cajon, Calif.) and Nathaniel M. Gray (Stratham, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor blade is provided that includes an airfoil extending spanwise from a base to a tip. The airfoil extends longitudinally (e.g., chordwise) from a leading edge to a trailing edge. The airfoil extends laterally between a first side and a second side. The airfoil includes a body and a weight. The body includes a plurality of body layers. Each of the body layers includes fi...