ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,070, issued on Feb. 17, was assigned to Coherent Aerospace & Defense Inc. (Murrieta, Calif.).

"Spectral beam combining optical assembly and method of fabrication" was invented by John Louis Hostetler (Hightstown, N.J.), Martin Seifert (New Hartford, Conn.) and Jared Howard Gaertner (Narberth, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus is used for spectral beam combining laser wavelengths into a combined beam. The apparatus has an integrated, sealed optical assembly that can be installed and replaced in the field. The optical assembly has a housing composed of a material, such as fused silica, transparent to the laser wavelengths...