Patents by Inventor Quan You Zhao

Quan You Zhao 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: 20040108767
    Abstract: A clip fastener includes a first side wall, a second side wall, and a U-shaped recess between the first side wall and second side wall. The first side wall is higher than the second side wall. The recess is at least partially defined by a surface including a first portion having relatively greater radius of curvature in the vicinity of the second side wall, a second portion having a relatively lesser radius of curvature in the vicinity of the first side wall, and an inwardly projecting ridge, said second portion and ridge at least partially defining a pocket region.
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Inventor: Quan You Zhao