Patents by Inventor Fong S. Yen

Fong S. Yen 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).

  • Ceiling fan
    Patent number: D314046
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: January 22, 1991
    Inventor: Fong S. Yen
  • Ceiling fan
    Patent number: D314618
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: February 12, 1991
    Inventor: Fong S. Yen