Patents by Inventor Robert J. Garrecht

Robert J. Garrecht 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).

  • Alkyl or alkenyl succinic acids as corrosion inhibitors for oxygenated fuels
    Patent number: 5080686
    Abstract: This invention relates to a corrosion inhibited system comprising(1) an oxygenated fuel, and(2) an alkenyl or alkyl succinic acid or a polymer thereof.
    Type: Grant
    Filed: October 20, 1982
    Date of Patent: January 14, 1992
    Assignee: Petrolite Corporation
    Inventors: Robert J. Garrecht, J. Irvine Knepper, George W. Dear
  • Antifoulant compositions and methods
    Patent number: 4900427
    Abstract: Fouling of heat exchangers in chemical processing or oil refining systems is inhibited by incorporating into a petroleum derived stock an effective antifouling amount of a mixture of(a) a condensation product of an alkylphenol, an aldehyde, and an amine; and(b) a diaminomethane.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: February 13, 1990
    Assignee: Petrolite Corporation
    Inventors: Jerry J. Weers, Thomas J. Falkler, George G. Duggan, Robert J. Garrecht
  • Corrosion inhibition in engine fuel systems
    Patent number: 4595523
    Abstract: There is provided a corrosion inhibitor for use in the storage, distribution and use of alcohol as a fuel for internal combustion engines. The inhibitor comprises a triazole and an amine salt of an acid. There is further provided a corrosion-inhibited alcohol fuel and a method of inhibiting corrosion in metals.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: June 17, 1986
    Assignee: Petrolite Corporation
    Inventors: J. Irvine Knepper, Robert J. Garrecht, George W. Dear