Patents by Inventor Yam C. Wong

Yam C. 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).

  • Toy elephant
    Patent number: D285709
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: September 16, 1986
    Assignee: Toymaster Industrial Limited
    Inventor: Yam C. Wong
  • Toy elephant
    Patent number: D285710
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: September 16, 1986
    Assignee: Toymaster Industrial Limited
    Inventor: Yam C. Wong