Patents by Inventor George W. Chao

George W. Chao 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).

  • One piece front face for magnifying or correcting glasses
    Patent number: 6733121
    Abstract: The present invention is directed to a method of forming a unitary front face for eyeglasses provided with lenses that have magnifying power.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 11, 2004
    Assignee: Contour Optik, Inc.
    Inventor: George W. Chao