Patents by Inventor Xin-Quan Wang

Xin-Quan Wang 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: 6311372
    Abstract: A buckle device for skates includes a base on a boot and two lugs extend from the base so as to pivotally connected to a lever member between the two lugs. A tubular member extends from a top of the base and a recess is defined in a top of the tubular member. A protrusion extends from a bottom of the lever member and a strap head is pivotably connected between two legs of the lever member. A toothed strap extends from the strap head and is disengagably connected to an engaging means on the boot. The protrusion is disengagably engaged with the recess in the tubular member.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: November 6, 2001
    Inventor: Xin-Quan Wang