Patents by Inventor James Thomas Walnock

James Thomas Walnock 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).

  • Laser marking of fluoropolymer composition
    Patent number: 5789466
    Abstract: Laser marking of pigmented fluoropolymer substrates is enhanced by using titanium dioxide pigment coated with organo silane.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: August 4, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John Nicholas Birmingham, Jr., Dwight Alan Holtzen, James Francis Hunt, Robert Sterrett Jenkins, Peter Dwight Spohn, James Thomas Walnock