Patents by Inventor Larry A. Brey

Larry A. Brey 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).

  • Lithographic substrate and its process of manufacture
    Patent number: 4457971
    Abstract: Lithographic printing substrates ordinarily require a mechanical or chemical graining of aluminum surfaces. Such substrates are difficult and expensive to make. It has been found that lithographically suitable substrates can be prepared by the firing of monobasic phosphate solutions with dispersed particles therein. The presence of reactive metallic oxides enhances the properties of the surface.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: July 3, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donald E. Cadwell, Larry A. Brey