Patents by Inventor Mason Yeung

Mason Yeung 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: D359523
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: June 20, 1995
    Assignee: Hung Hing Plastic Factory Limited
    Inventor: Mason Yeung