Patents by Inventor Lai Fu Joung

Lai Fu Joung 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).

  • Structure of automobile tire friction-increasing auxiliary device
    Patent number: 4747438
    Abstract: The present invention relates to an improved structure of an automobile tire auxiliary device, especially relates to such a device capable of holding the tire to step up the friction force of the tire through a recess and an adjustable lug on the claw plates so that the automobile can pass through the land of snow, sand, mud and swamp or upward slope by virtue of poking the sand and earth.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: May 31, 1988
    Inventor: Lai Fu Joung