Patents by Inventor Ng H. Kwong

Ng H. Kwong 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).

  • Headset
    Patent number: D299454
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: January 17, 1989
    Inventor: Ng H. Kwong
  • Headset
    Patent number: D300627
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: April 11, 1989
    Inventor: Ng H. Kwong