Patents by Inventor Cornell Chappel

Cornell Chappel 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).

  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Patent number: 6759178
    Abstract: A printing plate includes a substantially free gelatin free polymeric film which includes a coating layer of a polymer having at least one -POXY pendant group, pendant carboxyl groups and further comprises a sulphonated monomer, salt or derivative.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: July 6, 2004
    Assignee: DuPont Teijin Films US Limited Partnership
    Inventors: Noel Stephen Brabbs, Andrew Charles Street, Karen Goodchild, Cornell Chappel, Jr., Junaid Ahmed Siddiqui, Stephen Derek Rogers
  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Publication number: 20030013042
    Abstract: A polymeric film which is substantially gelatin free has a polymeric film substrate and a coating layer containing a polymer having at least one or more repeating units having at least one or more pendant (—POXY) groups, wherein X and Y, which may be the same or different, are OH or OM wherein M is a cation. The polymeric film is suitable for use as a component of a printing plate.
    Type: Application
    Filed: July 31, 2002
    Publication date: January 16, 2003
    Inventors: Noel Stephen Brabbs, Cornell Chappel, Karen Goodchild, Andrew Charles Street, Junaid Ahmed Siddiqui, Stephen Derek Rogers
  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Patent number: 6495309
    Abstract: A substantially gelatin free polymeric film includes a coating layer of a polymer having at least one —POXY pendant group, pendant carboxyl group or capable of forming carboxyl groups and further comprises a sulphonated monomer, salt or derivative.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: December 17, 2002
    Assignees: E.I. Du Pont de Nemours and Company, Du Pont Teijin Films U.S. Limited Partnership
    Inventors: Noel Stephen Brabbs, Andrew Charles Street, Karen Goodchild, Cornell Chappel, Jr., Junaid Ahmed Siddiqui, Stephen Derek Rogers