Patents by Inventor Barbara Crawford Jackson

Barbara Crawford Jackson 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).

  • Fiber coating composition having an invisible marker and process for making same
    Patent number: 6217794
    Abstract: Fibers having at least one near-infrared fluorescing compound associated therewith are prepared by contacting the fibers with the fluorescing compound(s) dissolved in an organic solvent. Suitable organic solvents include ketones and alcohols. The fibers may subsequently be air-dried to remove any remaining volatiles. Fibers coated with the marker solution desirably have less than 1 weight percent of the marker coated thereon.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 17, 2001
    Assignee: Isotag Technology, Inc.
    Inventors: Richard Dixon Neal, Barbara Crawford Jackson, James John Krutak, Sr.
  • Near infrared fluorescent security thermal transfer printing and marking ribbons
    Patent number: 6174400
    Abstract: The present invention relates to thermal transfer ribbons comprising a ribbon backing element and at least one printing media layer comprising at least one near infrared fluorescent compound in a concentration which provides detectable fluorescence without imparting color to a mark made from said printing media layer. Methods for printing marks containing said at least one near infrared fluorescent compounds via thermal transfer and methods for reading said marks are also disclosed.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: January 16, 2001
    Assignee: Isotag Technology, Inc.
    Inventors: James John Krutak, Sr., Michael John Cyr, Nelson Zamora Escano, Horst Clauberg, Barbara Crawford Jackson, Tony Wayne Helton