ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,720, issued on Jan. 20.

"Systems, apparatus, and methods for algae control system using a carbon nanotube sonic generator" was invented by John Wright (Provo, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "An underwater sound generation device may be used for effective control of algae and other microorganisms in ponds and lakes. The sound projector may comprise a thermoacoustic sound transducer and an electronic unit for controlling the operation of the projector. The thermoacoustic projector may include a freestanding carbon nanotube (CNT) film encapsulated between two vibrating plates. The inert gas filled thin acoustical cavity provides a p...