Patents by Inventor Yun-Ying Chen

Yun-Ying Chen 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).

  • Patent number: 5988924
    Abstract: A car washing device includes an assembly of brushes such as sponge brushes or other equivalents composed of bristles or cloth attached to the front side of a brush body. A hose joint is provided near the hand grip of the brush body for introducing clean water into the device and to supply the water to the brush assembly via at least one water outlet hole in the brush body. A car washer can wash the car with one hand using the device. A valve may be provided to control the flow rate of the water.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: November 23, 1999
    Inventor: Yun-Ying Chen