Patents by Inventor Thomas J. Dooley

Thomas J. Dooley 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).

  • Printing plate protectant
    Patent number: 5021324
    Abstract: A composition useful for the protection of actinic light-exposed presensitized lithographic printing plates. The composition contains an effective amount of the di-potassium salt of hydroxyethylidene diphosphonic acid dissolved in water. The composition is applied to the surface of the revealed substrate of the plates after they have been developed but before treatment to heat, to prevent surface contamination from the heat treatment.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: June 4, 1991
    Assignee: Polychrome Corporation
    Inventors: Paul A. Jargiello, Thomas J. Dooley