Patents Represented by Attorney Benjamin I. Kaufman

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  • Grease compositions
    Patent number: 3935122
    Abstract: Grease compositions are provided comprising a major proportion of an oil of lubricating viscosity and a thickening amount of a metal salt of a C-alkyl or alkenyl succinic acid, having from about 10 to about 30 carbon atoms in the alkyl or alkenyl group, and a metal salt of a C-alkyl or alkenyl succoinoamidoarylsulfonic acid, having from about 14 to about 30 carbon atoms in the alkyl or alkenyl group.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: January 27, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Joseph J. Dickert, Jr.
  • Lubricant compositions comprising substituted indans
    Patent number: 3931334
    Abstract: Lubricant compositions are provided comprising a substituted indan having the structure: ##SPC1##In which R is at least one member of the group consisting of hydrogen, alkyl, phenyl, carboxy alkyl, carboxy phenyl, phenoxy and their thiosubstituted derivatives. The method for the preparation of these substituted indans is also provided.
    Type: Grant
    Filed: July 5, 1973
    Date of Patent: January 6, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Robert M. Gemmill, Jr., John W. Schick