Patents by Inventor Siu W. Wong

Siu W. Wong 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).

  • Ratchet screwdriver
    Patent number: D260599
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: September 8, 1981
    Assignee: Ching Wah Metal Ware Factory Limited
    Inventor: Siu W. Wong
  • Combined display and storage container for tools or the like
    Patent number: D263561
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: March 30, 1982
    Assignee: Ching Wah Metal Ware Factory Limited
    Inventor: Siu W. Wong