Patents by Inventor Alen Ke

Alen Ke 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 source with reflecting side wall
    Patent number: 7080924
    Abstract: A light emitting diode chip or chips array mounted on a substrate is surrounded by one or more side walls. The wall has an uneven reflecting surface to diverge the light emitted from the LED chip or chip array. The wall may have a triangular cross-section so that the emitted light diverges in all directions. When three double-sided reflecting walls surround three LED panels, the reflected light becomes omnidirectional hemispherically and can be used in a light bulb.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 25, 2006
    Assignee: Harvatek Corporation
    Inventors: Tzyy Jang Tseng, Bily Wang, Alen Ke
  • LED light source with reflecting side wall
    Publication number: 20040105262
    Abstract: A light emitting diode chip or chips array mounted on a substrate is surrounded by one or more side walls. The wall has an uneven reflecting surface to diverge the light emitted from the LED chip or chip array. The wall may have a triangular cross-section so that the emitted light diverges in all directions. When three double-sided reflecting walls surround three LED panels, the reflected light becomes omnidirectional hemispherically and can be used in a light bulb.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Inventors: Tzyy Jang Tseng, Bily Wang, Alen Ke