Patents by Inventor Dawn Stasney

Dawn Stasney 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).

  • Method and composition for inhibiting corrosion in aqueous systems
    Patent number: 6585933
    Abstract: A method and composition for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a combination of a tetrazolium salt of the general formula: where R1, R2 and R3 may be various organic or inorganic substitutents, where n may be 1 or 2, and at least one other aqueous system treatment material.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: July 1, 2003
    Assignee: BetzDearborn, Inc.
    Inventors: William C. Ehrhardt, Longchun Cheng, Dawn Stasney, Kim A. Whitaker