Patents by Inventor Hui-Fen Chen

Hui-Fen Chen 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: D535449
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: January 16, 2007
    Assignee: Hua Wu Hardware Co., Ltd.
    Inventor: Hui-Fen Chen
  • Patent number: D535450
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: January 16, 2007
    Assignee: Hua Wu Hardware Co., Ltd.
    Inventor: Hui-Fen Chen
  • Patent number: D547020
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: July 17, 2007
    Assignee: Hua Wu Hardware Co., Ltd
    Inventor: Hui-Fen Chen
  • Patent number: D488605
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: April 13, 2004
    Assignee: Hua Wu Hardware Co., Ltd.
    Inventor: Hui-Fen Chen