Patents Represented by Attorney Hauggn Law Firm PLLP

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  • Corrosion inhibiting powders and processes employing powders
    Patent number: 7892601
    Abstract: A corrosion inhibiting agent is provided as a finely ground powder that is dispensed into a sheath or other casing enclosing a metal bar, cable, or other tension member. The agents are produced by preparing salts of amines with benzoic acid or nitric acid, drying the salts, and grinding and screening the salts to provide a desired maximum particle size. Also disclosed is a dry fogging process through which the powder is applied to metal tension members enclosed in polymeric sheaths or other fluid tight casings.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: February 22, 2011
    Assignee: Cortec Corporation
    Inventors: Jessica Jackson Meyer, Margarita Kharshan, Boris A. Miksic