ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,692, issued on Feb. 17, was assigned to Innoven Energy LLC (Colorado Springs, Colo.).

"Reflectivity variation of ICF target surfaces" was invented by Robert O. Hunter Jr. (Aspen, Colo.) and Adlai H. Smith (Escondido, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a system and method for controlling energy deposition on a surface of an Inertial Confinement Fusion (ICF) target when imploding. Providing one or more volume absorber/radiators to absorb the incident beam and reradiate x-ray radiation within the hohlraum containing the ICF target. Varying the reflectivity of the inner wall of the hohlraum wall or outer surface of the ICF target. ...