Patents by Inventor Huk Y. Chen

Huk Y. Chen 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 interlaminar grafting of coatings
    Patent number: 5037677
    Abstract: Interlaminar grafting of coatings, particularly grafting of a lubricious outer coating upon an anchor coating supported upon glass or plastic, for example, to provide anti-fogging or lubricating characteristics. The method is characterized by its ability to anchor permanently the highly lubricious coating to the glass or plastic.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: August 6, 1991
    Inventors: Gregory Halpern, Charles Campbell, Ellington M. Beavers, Huk Y. Chen
  • Method of hydrophilic coating of plastics
    Patent number: 4959074
    Abstract: Plastics, particularly a method of hydrophilic coating of plastics, for example, a contact lens, with a lubricating and visually acute mucopolysaccharide film which is immobilized upon the surface of the plastic for the lifetime of the plastic. A preferred method includes first coating the plastic with an aqueous solution of a mucopolysaccharide, drying by applying a water-miscible solvent, then crosslinking and permanently immobilizing the first coating upon the plastic by applying a solution of catalyzed organic solution aliphatic polyisocyanates.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: September 25, 1990
    Inventors: Gergory Halpern, Charles Campbell, Ellington M. Beavers, Huk Y. Chen