Patents by Inventor John Ferris

John Ferris 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).

  • Release compositions for asphalt roofing materials and methods of use
    Patent number: 4447500
    Abstract: A release coating for asphalt roofing sheet material comprises a mixture of fatty acid monoalkanol amides such as a mixture of cocamide MEA and stearamide MEA. The amides may be applied as dilute aqueous solutions or dispersions, and may be used with both asphalt shingles and roll roofing.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: May 8, 1984
    Inventor: John A. Ferris