Patents by Inventor Tang-Cheng Wang

Tang-Cheng Wang 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).

  • Hand washing apparatus of a car
    Patent number: 5730360
    Abstract: A hand washing apparatus disposed in a trunk of a car is provided and comprises a water tank, a pump, an electromagnetic valve, and a control apparatus. The water tank holds water, and on sensing the hands of a user, the sensor sends a message to the control apparatus. Responsive to the message, the control apparatus activates the electromagnetic valve to open and activates the pump to dispense the water from the water tank, so that the user can wash her or his hands with the water pumped from apparatus.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: March 24, 1998
    Inventor: Tang-Cheng Wang