Patents by Inventor Keith L. Reddick

Keith L. Reddick 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).

  • Light barrier fluorescent ribbon
    Patent number: 4472479
    Abstract: A barrier pigment is added to a fluorescent ribbon to prevent light from being absorbed into the media upon which the pigment is applied during printing. The barrier pigment is added to the fluorescent layer or is applied over the fluorescent layer as an additional layer.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: September 18, 1984
    Assignee: Recognition Equipment Incorporated
    Inventors: Larry J. Hayes, Keith L. Reddick
  • Process for producing fluorescent resin for ink jet printers
    Patent number: 4328332
    Abstract: A fluorescent resin useful in water based ink jet printing based upon both molecular weight and degree of crosslinking of the resin during the manufacture is made utilizing trimellitic anhydrides, propylene glycol, neopentyl glycol, or both, and zinc acetate.
    Type: Grant
    Filed: June 14, 1981
    Date of Patent: May 4, 1982
    Assignee: Recognition Equipment Inc.
    Inventors: Larry J. Hayes, Keith L. Reddick