Patents by Inventor Frank J. Smiggen

Frank J. Smiggen 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 removing photopolymers from metal substrates
    Patent number: 4116715
    Abstract: A developed photopolymer layer is completely removed from a support substrate of a printing plate. Such photopolymer is developed by photoinitiated polymerization from at least one water-soluble ethylenic monomer and includes a partially saponified polyvinyl acetate. For removal, the photopolymer layer is immersed in boiling water for sufficient time to swell the layer and then the swollen polymer is scraped from the printing plate.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: September 26, 1978
    Inventors: Frank J. Smiggen, Devitt S. Burry, Joseph Kallaby, Wayne H. Goltz