Patents by Inventor Chen-Hwa Huang

Chen-Hwa Huang 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).

  • Control board assembly for elevator
    Patent number: 5507366
    Abstract: A control board for an elevator includes a pair of edge members each having a longitudinal slot. A number of boards and plates are engaged between the edge members for engaging with buttons and displayer and include side edges engaged in the slots of the edge members. The boards and the plates may be arranged or changed for fitting different buttons and displayer. Two panels are further engaged between the upper and the lower portions of the edge members for positioning the board and the plate.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: April 16, 1996
    Inventor: Chen-Hwa Huang