ALEXANDRIA, Va., April 2 -- United States Patent no. 12,263,920, issued on April 1, was assigned to United States of America, as represented by the Secretary of the Navy (Washington).

"Retrofitting a buoy to provide dynamic control of a freeboard of the buoy" was invented by Bret R. Thomson (San Diego), Jason S. Bench (El Cajon, Calif.), Kevin A. Merhoff (San Diego), Brandon J. Wiedemeier (San Diego), Nathan Todd Miller (San Diego), Minh Vuong (San Diego) and Bryan B. Bui-Tuong (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retrofit kit retrofits a buoy to provide dynamic control of a freeboard of the retrofitted buoy. The retrofit kit includes buoyancy chambers, an air reservoir, and a valve ar...