Patents by Inventor Jen-Kuan Liao

Jen-Kuan Liao 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 filter for a ceiling fan
    Patent number: 6248147
    Abstract: The air filter for a ceiling fan in accordance with the present invention is suspended from the switch box of a ceiling fan, and comprises a cover in which a rotating blade and a filter are received. With the air filter for a ceiling fan in accordance with the present invention, the air is drawn through the filtering means by the suction force from the fan blade and then flows out the cover. Since the housing is positioned just under the ceiling fan, the filtered air is then broadly spread to the whole room by the ceiling fan.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: June 19, 2001
    Inventor: Jen-Kuan Liao