Patents by Inventor Joseph Crowell

Joseph Crowell 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).

  • Composite relief image printing plates
    Patent number: 6399281
    Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a substantially planar carrier sheet in approximate register and then transferring a computer-generated negative onto a surface of the elements.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: June 4, 2002
    Assignee: MacDermid Graphic Arts, Inc.
    Inventors: George Cusdin, Joseph Crowell, Edward Murphy, David Recchia
  • Composite relief image printing plates
    Patent number: 6312871
    Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a substantially planar carrier sheet in approximate register and then transferring a computer-generated negative onto a surface of the elements.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: November 6, 2001
    Assignee: Polyfibron Technologies, Inc.
    Inventors: George Cusdin, Joseph Crowell, Edward Murphy, David Recchia
  • Composite relief image printing plates and methods for preparing same
    Patent number: 5846691
    Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a substantially planar carrier sheet in approximate register and then transferring a computer-generated negative onto a surface of the elements.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: December 8, 1998
    Assignee: Polyfibron Technologies, Inc.
    Inventors: George Cusdin, Joseph Crowell