ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,630, issued on July 8.

"Ultra fine bubble production device" was invented by Satoshi Anzai (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an ultra fine bubble production device capable of causing a liquid current to flow in a helical manner without reducing a flow rate of the liquid current while reducing the number of components. The ultra fine bubble production device includes the pipe, the compression device, and the gas bubble production medium. The gas bubble production medium is formed of a carbon-based porous material, the pipe has the side surface having a cylindrical shape and the end surfaces having a circular s...