Patents by Inventor Gary Paul Westwood

Gary Paul Westwood 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).

  • Ink jet printing paper
    Patent number: 6936317
    Abstract: Ink jet printing paper carries a pigment coating comprising (a) a major proportion of a finely divided precipitated calcium carbonate (PCC) having a surface area of at least 60 m2g?1, preferably 80 to 90 m2g?1 (b) a minor proportion of a gel-type silica and (c) binder. The silica is preferably present in an amount of 15 to 30% by weight of the total dry weight of silica and PCC. The pigment coating is preferably made up as an aqueous composition having a solids content of 25 to 35% and a Brookfield viscosity of 150 to 2000 mPa s and applied by a blade coating technique.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: August 30, 2005
    Assignee: Arjo Wiggins Fine Papers Limited
    Inventors: Mark Victor Watson, Gary Paul Westwood
  • Ink jet printing paper
    Publication number: 20030124272
    Abstract: Ink jet printing paper carries a pigment coating comprising (a) a major proportion of a finely divided precipitated calcium carbonate (PCC) having a surface area of at least 60 m2g−1, preferably 80 to 9O m2g−1 (b) a minor proportion of a gel-type silica and (c) binder. The silica is preferably present in an amount of 15 to 30% by weight of the total dry weight of silica and PCC. The pigment coating is preferably made up as an aqueous composition having a solids content of 25 to 35% and a Brookfield viscosity of 150 to 2000 mPa s and applied by a blade coating technique.
    Type: Application
    Filed: November 1, 2002
    Publication date: July 3, 2003
    Inventors: Mark Victor Watson, Gary Paul Westwood