ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,990, issued on Nov. 25, was assigned to XIAMEN RAINSHOWER Co. LTD. (Xiamen, China).

"Showerhead with water passage switching device" was invented by Hewei Liu (Xiamen, China), Weifeng Zeng (Xiamen, China) and Zhengqi Zhu (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A showerhead with a water passage switching structure is provided according to the present application. The showerhead includes a seat body, a water outlet body assembly, a water distribution valve and a knob. The water distribution valve is provided with at least one water distribution hole, and a water inlet end face of the water outlet body assembly is provided with se...