ALEXANDRIA, Va., June 25 -- United States Patent no. 12,341,408, issued on June 24, was assigned to OCEANA ENERGY COMPANY (Washington).

"Hydroelectric energy systems and methods of manufacturing the same" was invented by Daniel E. Power III (Pace, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydroelectric energy system in accordance with the present disclosure includes a stationary ring structure including a stationary ring foundation and a stationary ring backing. The system also includes a rotating ring structure including a rotating ring foundation and a blade support ring disposed radially outward of the rotating ring foundation. The rotating ring foundation is disposed radially outward of the s...