Patents Represented by Attorney, Agent or Law Firm James Daly
  • Tobacco extract composition and method
    Patent number: 6602555
    Abstract: A method of extracting corrosion inhibiting constituents from tobacco comprises the steps of soaking tobacco in an extraction solution under certain extraction conditions, followed by filtration to remove tobacco residue from the resultant aqueous tobacco solution. This tobacco solution is used as a corrosion inhibitor to minimize the amount of corrosion occurring at galvanic corrosion cells that are established at areas of union of metals having different electrochemical potentials.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: August 5, 2003
    Assignee: University of Louisville
    Inventor: Joseph A. von Fraunhofer