Patents by Inventor William Innes Green

William Innes Green 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).

  • Metal pigments
    Patent number: 5849817
    Abstract: The present invention relates to a metal pigment, comprising a particle, preferably a flake, of iron or an alloy thereof, having on its surface a colored coating, formed by exposing the said particle to an elevated temperature in an oxygen-containing atmosphere. The product finds use in surface coatings and in the mass coloration of plastics, especially where a colored "glitter" effect is required.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: December 15, 1998
    Assignee: Silberline Limited
    Inventors: William Innes Green, Jonathan Joseph Whistler Knox