Patents by Inventor Gertrude Williams

Gertrude Williams 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).

  • Amber polyester compositions and container articles produced therefrom
    Patent number: 6787589
    Abstract: This application discloses amber colored polyesters suitable for packaging food and beverages. The amber polyester compositions provide excellent blockage of UV and visible light over the wavelength ranges of from about 320-550 nm, rendering them suitable for packaging materials sensitive to ultraviolet and visible light over this wavelength range, particularly beer.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: September 7, 2004
    Assignee: Eastman Chemical Company
    Inventors: Max Allen Weaver, Marc Alan Strand, Crystal Leigh Kendrick, Gerry Foust Rhodes, Gertrude Williams, Jason Clay Pearson, Timothy Alan Upshaw
  • AMBER POLYESTER COMPOSITIONS AND CONTAINER ARTICLES PRODUCED THEREFROM
    Publication number: 20040087688
    Abstract: This application discloses amber colored polyesters suitable for packaging food and beverages. The amber polyester compositions provide excellent blockage of UV and visible light over the wavelength ranges of from about 320-550 nm, rendering them particularly suitable for packaging materials sensitive to ultraviolet and visible light over this wavelength range, particularly beer.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Max Allen Weaver, Marc Alan Strand, Crystal Leigh Kendrick, Gerry Foust Rhodes, Gertrude Williams, Jason Clay Pearson, Timothy Alan Upshaw