Patents by Inventor Wan-Fu Chen

Wan-Fu Chen 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).

  • Foldable chair
    Patent number: 6568752
    Abstract: A foldable chair includes a pair of front legs, a pair of rear legs each connected to a corresponding one of the pair of front legs, a pair of rear legs pivotally connected to a connection plate sandwiched between the pair of rear legs, a seat with multiple protrusions received in corresponding cutouts in each of cross pieces which are respectively and pivotally connected between the front leg and the rear-leg, a first and a second armrest on opposite sides of the seat. A table has two grooves oppositely defined in side faces of the table to correspond to the two guiding pins of the second armrest such that the table is slidable relative to the second armrest and a back is pivotally connected between two rear legs by means of two third connectors.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: May 27, 2003
    Inventors: Chien-Chu Lu, Wan-Fu Chen
  • Foldable chair
    Patent number: D471965
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: March 18, 2003
    Inventors: Chien-Chu Lu, Wan-Fu Chen