Patents by Inventor Chin-Keng Hsieh

Chin-Keng Hsieh 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).

  • Triangle road sign with solar power-driven flashing light means
    Patent number: 6389720
    Abstract: A triangle road sign having a bottom rack, a left frame bar and a right frame bar respectively pivoted to two distal ends of the bottom rack and detachably coupled to each other to form a triangle rack with the bottom rack, a device for securing the triangle rack to the inside of a car, indicator lights respectively installed in the bottom rack, the left frame bar and the right frame bar and controlled to flash by a control switch at the bottom rack, a solar collector installed in the bottom rack to collect solar energy and to convert collected solar energy into electricity for the signal lights at the bottom rack, the left frame bar and the right frame bar, a battery box installed in the bottom rack and controlled by the control switch to provide the necessary working voltage to the signal lights, an alternating current adapter controlled by the control switch to convert alternating current power supply to direct current power supply for the signal lights.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: May 21, 2002
    Inventor: Chin-Keng Hsieh
  • Triangle road sign with solar power-driven flashing light means
    Patent number: RE39594
    Abstract: A triangle road sign having a bottom rack, a left frame bar and a right frame bar respectively pivoted to two distal ends of the bottom rack and detachably coupled to each other to form a triangle rack with the bottom rack, a device for securing the triangle rack to the inside of a car, indicator lights respectively installed in the bottom rack, the left frame bar and the right frame bar and controlled to flash by a control switch at the bottom rack, a solar collector installed in the bottom rack to collect solar energy and to convert collected solar energy into electricity for the signal lights at the bottom rack, the left frame bar and the right frame bar, a battery box installed in the bottom rack and controlled by the control switch to provide the necessary working voltage to the signal lights, an alternating current adapter controlled by the control switch to convert alternating current power supply to direct current power supply for the signal lights.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: May 1, 2007
    Inventor: Chin-Keng Hsieh