Patents by Inventor Norman A. Protnoy

Norman A. Protnoy 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).

  • Reinforced cellulosic film
    Patent number: 5603884
    Abstract: Disclosed is a method of preparing an extruded cellulosic film which contains a uniform dispersion of hemp fibers by first adding the fibers to an amine oxide cellulose solvent to form a slurry, mixing the slurry with a molten aqueous solution of cellulose and amine oxide cellulose solvent extruding the mixture end then regenerating the dissolved cellulose.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: February 18, 1997
    Assignee: Viskase Corporation
    Inventors: Paul E. DuCharme, Jr., Norman A. Protnoy, John Markulin, Myron D. Nicholson