Patents by Inventor Duckchan Lee

Duckchan Lee 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: 6964615
    Abstract: An adjustable contour and slope practice putting green assembly having a base (22) and a practice putting green platform (21) mounted to the base for support of the platform (21) and a player standing on a support area (28) of the platform (21) over the base (22). The base (22) is formed for selective tilting of the platform (21). The weight of a player standing on the putting green platform (21) is used to hold or fix the platform (21) to the base (22) in an adjusted position. The platform (21) is cantilevered away from the base (22) and preferably the base assembly (22) includes a spherical surface structure (34,51) and a ring (23) cooperatively formed to enable universal adjustment of the slope of the platform (21) about the center of a spherical surface (34,51) when the player is not standing on the platform.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: November 15, 2005
    Inventor: Duckchan Lee
  • Publication number: 20040224783
    Abstract: An adjustable contour and slope practice putting green assembly having a base (22) and a practice putting green platform (21) mounted to the base for support of the platform (21) and a player standing on a support area (28) of the platform (21) over the base (22). The base (22) is formed for selective tilting of the platform (21). The weight of a player standing on the putting green platform (21) is used to hold or fix the platform (21) to the base (22) in an adjusted position. The platform (21) is cantilevered away from the base (22) and preferably the base assembly (22) includes a spherical surface structure (34,51) and a ring (23) cooperatively formed to enable universal adjustment of the slope of the platform (21) about the center of a spherical surface (34,51) when the player is not standing on the platform.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Inventor: Duckchan Lee