Patents by Inventor Renji Jin

Renji Jin 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).

  • Multi-color pen
    Patent number: D685420
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 2, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin
  • Multi-color pen
    Patent number: D685844
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: July 9, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin
  • Pen
    Patent number: D689932
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: September 17, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin
  • Pen
    Patent number: D704772
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: May 13, 2014
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin
  • Pen
    Patent number: D690358
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: September 24, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin
  • Pen
    Patent number: D690360
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: September 24, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Renji Jin