Patents by Inventor Guan Qiang Lin

Guan Qiang Lin 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).

  • Crochet lampshade
    Patent number: D437968
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: February 20, 2001
    Inventors: Jun Sun, Guan Qiang Lin, Ning Hao
  • Lampshade
    Patent number: D440693
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: April 17, 2001
    Inventors: Jun Sun, Guan Qiang Lin, Ning Hao