Patents by Inventor Duwayne Lester Loop

Duwayne Lester Loop 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).

  • Shim-less door hanging system
    Patent number: 6178717
    Abstract: A door hanging system that utilizes a plurality of metallic elongated U-shaped clips that span the area between the edge of the door opening and the door jamb. These metallic clips also serve to support the weight of the pre-hung door or door jamb during the adjustment phase of the installation and to permanently anchor it once the proper orientation of the door has been achieved. Additionally, the clips are designed in a fashion that they can be concealed behind the door finishing trim commonly used in construction today.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: January 30, 2001
    Inventor: Duwayne Lester Loop