Patents by Inventor Tom Haung

Tom Haung 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).

  • Pipe cutter
    Patent number: 6481105
    Abstract: A pipe cutter includes a handle, a power-forcing handle, a position recovery member, a drive device, a revolving member, and a cutter device combined together. The handle and the power-forcing handle are pivotally combined together, and pressing the power-forcing handle toward the handle to force the drive device to revolve the revolving member and the cutter device to cut off a pipe placed in the revolving member. The pipe cutter is easy to handle by only pressing the power-forcing handle in cutting a pipe.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: November 19, 2002
    Inventor: Tom Haung
  • Small screwdriver with a lamp
    Patent number: D449506
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: October 23, 2001
    Inventor: Tom Haung