Patents by Inventor Evan J. Jenkins

Evan J. Jenkins 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).

  • Opaque tinting process for contact lens
    Patent number: 4634449
    Abstract: A method is provided for tinting a hydrogel contact lens whereby the tinting effect is not appreciably affected by the underlying color of the iris of the wearer's eyes.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: January 6, 1987
    Assignee: International Hydron Corporation
    Inventor: Evan J. Jenkins