Patents by Inventor Yin-Chu Chou

Yin-Chu Chou 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).

  • Water drainable threshold construction to be laid under a door
    Patent number: 5956909
    Abstract: A water drainable threshold construction includes a first extrusion which has a longitudinal outside portion adapted to be placed outwardly of a bottom edge of a door, and a longitudinal inside portion lower than the outside portion. The inside portion has a space adapted for receiving water that flows from the outside portion. A tube extends from the inside portion to an outside portion for draining water from the space to the outside of the outside portion. A second extrusion is longitudinally mounted on the inside portion to cover the space, and has holes for passage of water into the space.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: September 28, 1999
    Inventor: Yin-Chu Chou