Patents by Inventor Elliott J. Levi

Elliott J. Levi 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: 4317744
    Abstract: Corrosion inhibitor comprised of corrosion inhibiting amounts of a water soluble phosphonic acid or salt thereof; polymer of acrylic, methacrylic, maleic acid or its anhydride; and tolyltriazole. The corrosion inhibitor is particularly employed for inhibiting corrosion of ferrous containing metal; e.g., mild steel employed in cooling water systems.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: March 2, 1982
    Assignee: Drew Chemical Corporation
    Inventor: Elliott J. Levi