Patents by Inventor Tseng Fong Ho

Tseng Fong Ho 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).

  • Publication number: 20090273922
    Abstract: A street light that uses both a low-pressure sodium vapor bulb and a metal halide bulb is disclosed. The combination of these two light bulbs creates an efficient light source that is highly effective in bad weather conditions as well as able to provide good color differentiation. Further, the street light can be battery powered, where the batteries are recharged by solar cells, wind turbines, or both. A self-sufficient cost-effective street light is produced that uses renewable energy to provide light that has high penetration and wide color spectrum characteristics.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 5, 2009
    Inventors: Tseng Fong Ho, Kuen Shan Chan, Kuen Lam