Patents by Inventor Tsai-Fu Yun

Tsai-Fu Yun 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).

  • Chair armrest
    Patent number: D502827
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: March 15, 2005
    Assignee: Chang Yee Steel Co., Ltd.
    Inventor: Tsai-Fu Yun
  • Chair armrest
    Patent number: D538561
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: March 20, 2007
    Assignee: Wonderful Year Co., Ltd.
    Inventor: Tsai-Fu Yun