Patents by Inventor Yuan Chang Wen

Yuan Chang Wen 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 chair
    Patent number: D677921
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 19, 2013
    Inventor: Yuan Chang Wen