ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,996, issued on May 26, was assigned to MESA ASSOCIATES INC. (Madison, Ala.).

"Hydropower turbine" was invented by Boualem Hadjerioua (Knoxville, Tenn.), Kevin Polak (Southington, Conn.) and Thomas V. Eldredge (Southport, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydropower generation system includes a hydropower turbine with both adjustable wicket gates and adjustable runner blades. The hydropower turbine can receive water flow with a head of up to 110 feet. The runner hub of the hydropower turbine can have 8 runner blades that can rotate at a speed of at least 700 revolutions per minute to produce about 500 kW of power from the correspon...