Patents by Inventor Raymond H. Gaupp

Raymond H. Gaupp 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).

  • Corrosion inhibitor
    Patent number: 3992318
    Abstract: A corrosion inhibitor which is comprised of a polyphosphate; a phosphonic acid or salt thereof; and a polymer of acrylic or methacrylic acid. The corrosion inhibitor is employed in aqueous systems and is capable of operating at a wide variety of conditions, including high temperature, high pH and in the presence of contaminants such as hydrogen sulfide and hydrocarbons. A typical composition is comprised of sodium hexametaphosphate, sodium salt of amino tri(methylene-phosphonic acid) and polyacrylic acid.
    Type: Grant
    Filed: October 9, 1973
    Date of Patent: November 16, 1976
    Assignee: Drew Chemical Corporation
    Inventors: Raymond H. Gaupp, John A. Nygren, Jr.