Patents by Inventor Philip Watkiss

Philip Watkiss 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).

  • Method for making lithographic plates
    Patent number: 8361701
    Abstract: Method for producing an imaged lithographic printing plate comprising the step of developing an imagewise exposed negative working precursor with a developer comprising an alkylene oxide derivative of formula (A), wherein R1 is a linear or branched C1 to C6 alkyl group or H, (n+m) is an integer from 2 to 30, and R2 R3 R4 and R5 are each independently selected from H, methyl and ethyl, with the proviso that at least one of R2 and R3 is not H, and with the further proviso that at least one of R4 and R5 is not H.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 29, 2013
    Assignee: Eastman Kodak Company
    Inventors: Oliver Piestert, Harald Baumann, Ulrich Fiebag, Bernd Strehmel, Uwe Tondock, Philip Watkiss
  • METHOD FOR MAKING LITHOGRAPHIC PLATES
    Publication number: 20100304304
    Abstract: Method for producing an imaged lithographic printing plate comprising the step of developing an imagewise exposed negative working precursor with a developer comprising an alkylene oxide derivative of formula (A), wherein R1 is a linear or branched C1 to C6 alkyl group or H, (n+m) is an integer from 2 to 30, and R2 R3 R4 and R5 are each independently selected from H, methyl and ethyl, with the proviso that at least one of R2 and R3 is not H, and with the further proviso that at least one of R4 and R5 is not H.
    Type: Application
    Filed: September 24, 2008
    Publication date: December 2, 2010
    Inventors: Oliver Piestert, Harald Baumann, Ulrich Fiebag, Bernd Strehmel, Uwe Tondock, Philip Watkiss