Patents by Inventor Sian Ghee Alan Lee

Sian Ghee Alan 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).

  • Decorative paving article
    Patent number: D442704
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: May 22, 2001
    Inventor: Sian Ghee Alan Lee
  • Drainage panel
    Patent number: D422061
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 28, 2000
    Assignee: Nortec Geo-Ssytems Pte Ltd.
    Inventor: Sian Ghee Alan Lee