Patents by Inventor Yun-Sheung Chow

Yun-Sheung Chow 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).

  • Patent number: D318766
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: August 6, 1991
    Assignee: Sun Hing Audio Equipment Mfy. Ltd.
    Inventor: Yun-Sheung Chow
  • Patent number: D326357
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: May 26, 1992
    Assignee: Sun Hing Audio Equipment Mfy. Ltd.
    Inventor: Yun-Sheung Chow