Patents by Inventor Peter A. R. Bennett

Peter A. R. Bennett 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).

  • Direct positive lithographic plate
    Patent number: 6420087
    Abstract: A positive working lithographic plate precursor comprising a support having a hydrophilic surface and a coating thereon comprising a positive working, photosensitive composition and an aryl alkyl polysiloxane. A method of preparing a positive working lithographic plate precursor comprising coating on a support having a hydrophilic surface a coating comprising, in admixture, a positive working photosensitive composition and an aryl alkyl polysiloxane.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: July 16, 2002
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Peter A. R. Bennett, John A. Hearson, Carole-Anne Smith
  • Lithographic plates
    Patent number: 6303271
    Abstract: A method for preparing a printing form and a method of printing are disclosed. A coating of a radiation sensitive ink on a lithographic support having a hydrophilic surface is imaged. The unexposed areas of the coating are removed to produce a printing form, which is used for printing. Preferably, the same radiation sensitive ink is used for printing as is used in the coating, and, preferably, the desired printing run length is predetermined and the thickness of the coating determined according to the desired run length.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: October 16, 2001
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Peter A. R. Bennett, Carole-Anne Smith, Stuart Bayes, David S. Riley
  • 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