Patents by Inventor Gia Cuong Tu

Gia Cuong Tu 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).

  • Address book
    Patent number: D452269
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: December 18, 2001
    Assignee: Pollyflame International B.V.
    Inventor: Gia Cuong Tu
  • Oval key chain
    Patent number: D457719
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: May 28, 2002
    Assignee: Pollyflame International B.V.
    Inventor: Gia Cuong Tu
  • Coaster
    Patent number: D460899
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: July 30, 2002
    Assignee: Pollyflame International B.V.
    Inventor: Gia Cuong Tu
  • Circular key chain
    Patent number: D534455
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: January 2, 2007
    Assignee: Pollyflame International B.V.
    Inventor: Gia Cuong Tu