Patents by Inventor Kathy Wai Yuen WONG

Kathy Wai Yuen WONG 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).

  • Photochromic coating process
    Patent number: 9453950
    Abstract: The present invention provides a method for manufacturing a photochromic article having a photochromic compound containing layer. The method includes the step of coating a casting face of at least one mold section with a photochromic host layer. The photochromic host layer is treated to minimize damage during subsequent steps, and a mold is then assembled so that it includes the mold section having the photochromic host layer. The mold is then filled with a photochromic article monomer composition and the monomer composition is subsequently cured to form a photochromic article substrate adhered to the photochromic host layer. The photochromic compound is introduced into the photochromic host layer.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 27, 2016
    Assignee: CARL ZEISS VISION AUSTRALIA HOLDINGS LTD.
    Inventors: Kathy Wai Yuen Wong, David Andrew Lewis, Fang Chen, Bohdan Grzegorz Cieslinski, Huan Kiak Toh
  • Photochromic Coating Process
    Publication number: 20120037859
    Abstract: The present invention provides a method for manufacturing a photochromic article having a photochromic compound containing layer. The method includes the step of coating a casting face of at least one mould section with a photochromic host layer. The photochromic host layer is treated to minimise damage during subsequent steps, and a mould is then assembled so that it includes the mould section having the photochromic host layer. The mould is then filled with a photochromic article monomer composition and the monomer composition is subsequently cured to form a photochromic article substrate adhered to the photochromic host layer. The photochromic compound is introduced into the photochromic host layer.
    Type: Application
    Filed: August 17, 2011
    Publication date: February 16, 2012
    Applicant: Carl Zeiss Vision Australia Holdings Ltd.
    Inventors: Kathy Wai Yuen WONG, David Andrew Lewis, Fang Chen, Bohdan Grzegorz Cieslinski, Huan Kiak Toh