Patents by Inventor Chia Shan Lee

Chia Shan Lee 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).

  • Self-inking stamp
    Patent number: D584340
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: January 6, 2009
    Inventor: Chia Shan Lee
  • Pre-inked stamp
    Patent number: D425546
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: May 23, 2000
    Inventor: Chia Shan Lee