Patents by Inventor Colin J. Griffiths

Colin J. Griffiths 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).

  • Planographic printing member and process for its manufacture
    Patent number: 6138568
    Abstract: A planographic printing member comprising a substrate, an oleophilic layer, an infra-red sensitive/ablatable layer, and a hydrophilic layer. The hydrophilic layer is derived from a silicate solution, optionally containing particulate materials such as alumina and/or titania. The printing member may be exposed to radiation from a laser which ablates the infra-red sensitive/ablatable layer to reveal areas of the oleophilic layer. An exposed printing member may be used in wet lithographic printing.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: October 31, 2000
    Assignee: Kodak Polcyhrome Graphics LLC
    Inventors: Christopher D. McCullough, Kevin B. Ray, Michael S. Yates, Colin J. Griffiths, Mark J. Spowage, Peter A. R. Bennett, Harjit S. Bhambra