ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,540, issued on Nov. 25.

"Hydrotherapy machine" was invented by Jun Ge (Jiangsu, China), Zhenlong Zhu (Jiangsu, China) and Mingyi Ge (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrotherapy machine, comprising a shell, the shell is provided with a battery, a drive motor, and water absorbing fan blades, the water absorbing fan blades are connected to an output shaft of the drive motor; a front end of the shell is provided with external water inlets, the external water inlets are opposite to the water absorbing fan blades; the shell is further provided with a bowl-shaped spray head; the shell is further provided with a water passag...