Patents by Inventor Ho Fa Yang

Ho Fa Yang 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).

  • Faucet control mechanism
    Patent number: 5690312
    Abstract: A faucet includes an upper portion having an extension extended in a bore and includes a rear portion having four chambers of different sizes. The upper portion includes an inlet and an outlet for allowing water to flow into the bore. A barrel is engaged in one of the chambers and includes a notch communicating with the inlet and includes a valve seat. A valve stem is slidably engaged in the barrel and includes a plug for engaging with the valve seat of the barrel. A knob is secured to the valve stem for disengaging the plug from the valve seat.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: November 25, 1997
    Inventor: Ho Fa Yang
  • Sprayer
    Patent number: D385949
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: November 4, 1997
    Inventor: Ho Fa Yang
  • Sprayer
    Patent number: D385950
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: November 4, 1997
    Inventor: Ho Fa Yang