Patents by Inventor Gapwoo Hwang

Gapwoo Hwang 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).

  • Electronic ballast for high intensity discharge lamp
    Patent number: 6351081
    Abstract: Disclosed is an electronic ballast for a high intensity discharge lamp which is capable of reducing the number of parts to thereby maintain a high power factor and prevent power loss generated in the circuit thereof.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: February 26, 2002
    Inventor: Gapwoo Hwang