Patents by Inventor Ling Chih-Hung

Ling Chih-Hung 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).

  • Air-conditioned seat cushion
    Patent number: 5692952
    Abstract: An air-conditioned seat cushion having a top cushion with many protruded beads and supporting cylinders. The inlet on its rear end to be sewn and sealed with one containing bag having one filter net on its front surface and one blower inside it. The cool air drown in by the blower will run in the air passages among the supporting cylinders inside the cushion and flow among the protruded beads on the cushion and then overflow from the air outlets spread on the cushion to provide prompt cool ventilation.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: December 2, 1997
    Inventor: Ling Chih-Hung