Patents by Inventor Yu Freeman Tang

Yu Freeman Tang 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).

  • Folding magnifier
    Patent number: D774582
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 20, 2016
    Assignee: Great Wall (Optical) Plastic Works Limited
    Inventor: Yu Freeman Tang