Patents by Inventor Mao-Wang Chen

Mao-Wang 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).

  • Patent number: 5608930
    Abstract: A foldable bed includes a pair of legs arranged between a head member and a foot member. Four pairs of pivot axels are arranged between and coupled to the members and the legs by four pairs of links. Two pairs of frames are pivotally coupled between the legs and the members and each pair include a middle portion pivotally coupled together by a hinge member so as to allow the frames to be folded upward about the hinge member and so as to support the frames in horizontal position by the hinge member. The bed may be folded to a rather compact configuration.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: March 11, 1997
    Inventor: Mao-Wang Chen