Patents by Inventor Jsiang-Fu Chen

Jsiang-Fu Chen 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).

  • Various color light refraction bulb
    Patent number: 6238059
    Abstract: A various color light refraction bulb is disclosed. The bulb includes a lamp tube, tungsten silks and a core pillar. A concave ring is formed at a middle section of the lamp tube, so as to divide the core tube into an upper tube and a lower tube. The concave ring serves to refract light from the upper and lower tubes so as to present various colors. A cone shape surface is used to seal the lower side of the lower tube and is used as a reflecting region so as to project light toward the lamp tube; and therefore, a various light refraction bulb is formed.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: May 29, 2001
    Inventor: Jsiang-Fu Chen