Patents by Inventor Zhou Kui Zhang

Zhou Kui Zhang 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).

  • Led light bulb
    Patent number: 6227679
    Abstract: An LED light bulb for use as an indicator or warning lamp comprises a support structure; a generally circular and planar disc attached to the support structure, wherein the disc is a printed circuit board and is perpendicularly oriented with respect to the structure. A plurality of interconnected LEDs are concentrically mounted on the disc wherein a portion of the LEDs are outwardly splayed at an angle away from a central axis point of the disc so that the LEDs collectively transmit light having about the same light intensity at viewing angles from about 0° to about 360° about the disc. The LED light bulb has circuitry means for providing a current to the LEDs.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 8, 2001
    Inventors: Zhou Kui Zhang, Zhang Qi Xiang
  • Base for LED light bulb
    Patent number: D418928
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: January 11, 2000
    Assignees: Mule Lighting, Inc., Shanghai Baoshan Import & Export Trade Corp., Ltd.
    Inventors: Zhou Kui Zhang, Zhang Qi Xiang
  • Disc support for LED light bulb
    Patent number: D422100
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 28, 2000
    Assignees: Mule Lighting, Inc., Shanghai Baoshan Import & Export Trade Corporation, Ltd.
    Inventors: Zhou Kui Zhang, Zhang Qi Xiang