Patents by Inventor Chang-Hsiung Liu

Chang-Hsiung Liu 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: 5761852
    Abstract: A shielding device including an inflatable frame structure, and a covering covered over the inflatable frame structure, the inflatable frame structure including a plurality of inflatable purlins, and a plurality of inflatable rafters connected in parallel by the inflatable purlins, the inflatable purlins and the inflatable rafters having a respective air valve, each inflatable rafter having a plurality of coupling portions adapted for coupling to the inflatable purlins, each coupling portion defining a coupling hole through which one inflatable purlin is inserted.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: June 9, 1998
    Inventor: Chang Hsiung Liu
  • Patent number: 5364161
    Abstract: An inflatable rocking chair comprising a seat and a frame. The seat is inflatable having a holding portion and a sitting portion. The frame is formed from a plurality of tubes having two connecting tubes which forms the horizontal tubes of the chair. Two arch-shaped tubes contact the ground to provide a rocking function of the chair. Two U-shaped tubes are used to connect the connecting tubes with the arch-shaped tubes so as to provide the frame and the inflatable seat as one unit. The frame of the inflatable chair is detachable.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: November 15, 1994
    Inventor: Chang-Hsiung Liu
  • Patent number: D353641
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: December 20, 1994
    Inventor: Chang-Hsiung Liu
  • Patent number: D360667
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: July 25, 1995
    Inventor: Chang-Hsiung Liu
  • Patent number: D372503
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: August 6, 1996
    Inventor: Chang-Hsiung Liu
  • Patent number: D388494
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: December 30, 1997
    Inventor: Chang Hsiung Liu
  • Patent number: D389219
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: January 13, 1998
    Inventor: Chang Hsiung Liu
  • Patent number: D396087
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: July 14, 1998
    Inventor: Chang-Hsiung Liu