Patents by Inventor William J. Lorenz

William J. Lorenz 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).

  • Storage-stable photosensitive composition and article with adduct of diazo resin and amorphous sulfopolyester
    Patent number: 4543315
    Abstract: A presensitized article having a radiation-sensitive layer comprising an adduct of an amorphous sulfopolyester and a diazonium resin is described which does not exhibit blocking on being stored in stacks for prolonged periods of time. The article can be exposed to radiation and developed via aqueous solvents to provide a lithographic plate that provides clean, scum-free copies, and that can be stored in a high humidity atmosphere without failure.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: September 24, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William J. Lorenz, Wayne K. Larson