Patents by Inventor Paul E. Manning

Paul E. Manning 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).

  • High chromium nickel base alloys
    Patent number: 4410489
    Abstract: Disclosed is a nickel-base alloy which provides excellent corrosion resistance to a variety of severe environments, especially hot phosphoric acid. The alloy preferably contains, in weight percent: about 30 chromium, about 4 molybdenum, about 2 tungsten, about 1 Cb/Ta, about 1.5 copper, about 14 iron and the balance nickel plus the impurities and modifying elements usually found in alloy of this class. The alloy is eminently suited for use as articles in chemical processing apparatus in the manufacture and/or containment of phosphoric acid and sulfuric acid.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: October 18, 1983
    Assignee: Cabot Corporation
    Inventors: Aziz I. Asphahani, William L. Silence, Paul E. Manning