Patents by Inventor Hsueh-E Hsu Chang

Hsueh-E Hsu Chang 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).

  • Adjustable clamping tool
    Patent number: 7946200
    Abstract: An adjustable clamping tool of the present invention includes a rotatable disc, two clamp portions, two slidable shanks, two rails and a housing member. When the rotatable disc is turned, the clamp portions are therefore driven to move toward or away from each other along the rails.
    Type: Grant
    Filed: June 6, 2009
    Date of Patent: May 24, 2011
    Inventor: Hsueh-E Hsu Chang
  • ADJUSTABLE CLAMPING TOOL
    Publication number: 20100000379
    Abstract: An adjustable clamping tool of the present invention includes a rotatable disc, two clamp portions, two slidable shanks, two rails and a housing member. When the rotatable disc is turned, the clamp portions are therefore driven to move toward or away from each other along the rails.
    Type: Application
    Filed: June 6, 2009
    Publication date: January 7, 2010
    Inventor: Hsueh-E HSU CHANG