Patents by Inventor Daofen WEI

Daofen WEI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220167585
    Abstract: The invention discloses a vortex water flowing device, which comprises a basin body, wherein the top of the basin body is provided with an inner concave area with a smooth downward concave arc surface, a water leakage hole is arranged at the lowest point of the inner concave area, a spiral diversion groove from bottom to top and from inside to outside is arranged on the inner wall of the inner concave area, and a water outlet is arranged at the top of the basin body corresponding to the highest point of the diversion groove.
    Type: Application
    Filed: January 15, 2021
    Publication date: June 2, 2022
    Inventor: Daofen WEI