Patents by Inventor Jam-Min Wang

Jam-Min Wang 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).

  • Portable torch with an extensible light bulb assembly
    Patent number: 5337226
    Abstract: The portable torch includes a light bulb assembly which can be drawn out from the main body to a desired place. The light bulb assembly has a clamping device for clamping the light bulb assembly adjacent to the desired place in order to provide better visibility.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: August 9, 1994
    Inventors: Jam-Min Wang, Cheng-Lan Shu