Patents by Inventor Shau Kei Wan

Shau Kei Wan 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).

  • Method of optical treatment
    Patent number: 7506983
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 24, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Ho To, Siu Yin Lam, Shau Kei Wan