Patents by Inventor Bi Hua Jin

Bi Hua 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).

  • Pen shell
    Patent number: D603900
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 10, 2009
    Assignee: Ningbo Wenkui Holding Group Co., Ltd.
    Inventor: Bi Hua Jin
  • Textured portion for writing device
    Patent number: D611099
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: March 2, 2010
    Inventor: Bi Hua Jin