Patents by Inventor Robert F. Cracia

Robert F. Cracia 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: 4645730
    Abstract: The lithographic printing plate of the invention comprises a substrate having a hydrophilic surface, a coating on said surface of a light sensitive material (e.g., a water soluble diazo) and a top coating of discrete, oleophilic resin particles (e.g., an emulsion polymer), the resin particle coating being:(a) transparent to actinic light;(b) sufficiently permeable to allow a developer for the light sensitive material to penetrate through to the underlying light sensitive coating;(c) insoluble in said developer;(d) capable of being coalesced in situ after the plate is imaged and developed.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: February 24, 1987
    Assignee: Howard A. Fromson
    Inventors: Howard A. Fromson, Robert F. Cracia