Patents by Inventor David T. Clarke

David T. Clarke 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).

  • Patent number: 7648821
    Abstract: A multiple layer photosensitive element having at least three differently sensitised photosensitive layers on one side of a support, such as a, transparent flexible support, is imagewise exposed according to a desired circuit pattern and developed to form two layers of conductive track patterns from each photosensitive layer, which may then be connected together by forming vias by drilling or in situ generation. The resulting multiple layer conductive element has application in the field of printed circuit board manufacture or as the backplane electronic element of a flexible display device.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: January 19, 2010
    Assignee: Eastman Kodak Company
    Inventors: Sean D. Slater, John R. Fyson, Christopher B. Rider, David T. Clarke, Jurjen F. Winkel, Peter Hewitson
  • Publication number: 20080199665
    Abstract: A multiple layer photosensitive element having at least three differently sensitised photosensitive layers on one side of a support, such as a, transparent flexible support, is imagewise exposed according to a desired circuit pattern and developed to form two layers of conductive track patterns from each photosensitive layer, which may then be connected together by forming vias by drilling or in situ generation. The resulting multiple layer conductive element has application in the field of printed circuit board manufacture or as the backplane electronic element of a flexible display device.
    Type: Application
    Filed: March 24, 2006
    Publication date: August 21, 2008
    Inventors: Sean D. Slater, John R. Fyson, Christopher B. Rider, David T. Clarke, Jurjen F. Winkel, Peter Hewitson