Patents by Inventor Keven Stone

Keven Stone 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).

  • Plastics dispersible pigments and processes for preparing the same
    Publication number: 20030029359
    Abstract: Improved particulate inorganic pigments and processes for preparing such inorganic pigments which have enhanced dispersibility in plastic materials are provided. The processes basically comprise coating the particulate inorganic pigment with a dispersibility improving agent comprised of a complex mixture of partially and totally polysaturated and unsaturated fatty acid esters and derivatives thereof.
    Type: Application
    Filed: June 1, 2001
    Publication date: February 13, 2003
    Inventors: David Marshall, Sarah Staton, Dana King, Keven Stone