Patents by Inventor Yeong F. Yang

Yeong F. Yang 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).

  • Sledge toy
    Patent number: D283147
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: March 25, 1986
    Inventor: Yeong F. Yang