Patents by Inventor Pamela M. Barfield

Pamela M. Barfield 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).

  • Reduced VOC coatings using chemically modified hyperbranched polymers
    Patent number: 7851539
    Abstract: Reduced VOC coatings are provided that include small amounts of modified hyperbranched polymers added and reduced solvents to reduce VOC levels by as much as 30% and more. The reduced VOC coatings have substantially improved flow and performance characteristics over comparable commercially available reduced VOC coatings.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: December 14, 2010
    Assignee: The United States of America as represented by the Administrator of the United States Environmental Protection Agency
    Inventors: Carlos M. Nunez, Geddes H. Ramsey, Pamela M. Barfield, Larry G. Jones, Anthony L. Andrady
  • REDUCED VOC COATINGS USING CHEMICALLY MODIFIED HYPERBRANCHED POLYMERS
    Publication number: 20080090944
    Abstract: Reduced VOC coatings are provided that include small amounts of modified hyperbranched polymers added and reduced solvents to reduce VOC levels by as much as 30% and more. The reduced VOC coatings have substantially improved flow and performance characteristics over comparable commercially available reduced VOC coatings.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 17, 2008
    Inventors: Carlos M. Nunez, Geddes H. Ramsey, Pamela M. Barfield, Larry G. Jones, Anthony L. Andrady