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Robert H. Wollenberg

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  • San Rafael, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Modified succinimides (III)
    • Patent number 5,071,998
    • Issue date Dec 10, 1991
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil compositions containing a combination of a modified...
    • Patent number 4,927,551
    • Issue date May 22, 1990
    • Chevron Research Company
    • Timothy R. Erdman
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Modified succinimides
    • Patent number 4,904,278
    • Issue date Feb 27, 1990
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Modified succinimides and lubricating oil compositions containing t...
    • Patent number 4,840,744
    • Issue date Jun 20, 1989
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Modified Succinimides
    • Patent number 4,802,893
    • Issue date Feb 7, 1989
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Carbonate treated dispersants
    • Patent number 4,803,002
    • Issue date Feb 7, 1989
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (x)
    • Patent number 4,798,612
    • Issue date Jan 17, 1989
    • Chevron Research Company
    • Frank Plavac
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Modified succinimides (IV)
    • Patent number 4,783,275
    • Issue date Nov 8, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Carbonate treated dispersants
    • Patent number 4,755,312
    • Issue date Jul 5, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides in fuel composition
    • Patent number 4,747,850
    • Issue date May 31, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Modified succinimides
    • Patent number 4,747,965
    • Issue date May 31, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Lubricating oil compositions containing modified succinimides (VII)
    • Patent number 4,747,963
    • Issue date May 31, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides
    • Patent number 4,746,446
    • Issue date May 24, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Carbonate treated hydrocarbyl-substituted polyamines
    • Patent number 4,746,447
    • Issue date May 24, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Carbonate treated dispersants
    • Patent number 4,729,842
    • Issue date Mar 8, 1988
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil compositions containing modified succinimides (V)
    • Patent number 4,713,187
    • Issue date Dec 15, 1987
    • Chevron Research Company
    • Thomas F. Buckley
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Carbonate treated hydrocarbyl-substituted amides
    • Patent number 4,713,188
    • Issue date Dec 15, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dispersant additives for lubricating oils and fuels
    • Patent number 4,702,851
    • Issue date Oct 27, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (VIII)
    • Patent number 4,670,170
    • Issue date Jun 2, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (IV)
    • Patent number 4,668,246
    • Issue date May 26, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (III)
    • Patent number 4,666,460
    • Issue date May 19, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (VII)
    • Patent number 4,666,459
    • Issue date May 19, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil compositions containing modified succinimides (VII)
    • Patent number 4,663,062
    • Issue date May 5, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (V)
    • Patent number 4,648,886
    • Issue date Mar 10, 1987
    • Chevron Research Company
    • Thomas F. Buckley
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil compositions containing modified succinimides (V)
    • Patent number 4,647,390
    • Issue date Mar 3, 1987
    • Chevron Research Company
    • Thomas F. Buckley
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (II)
    • Patent number 4,645,515
    • Issue date Feb 24, 1987
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Dispersant additives for lubricating oils and fuels
    • Patent number 4,624,681
    • Issue date Nov 25, 1986
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (II)
    • Patent number 4,617,138
    • Issue date Oct 14, 1986
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides (III)
    • Patent number 4,614,603
    • Issue date Sep 30, 1986
    • Chevron Research Company
    • Robert H. Wollenberg
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Modified succinimides
    • Patent number 4,612,132
    • Issue date Sep 16, 1986
    • Chevron Research Company
    • Robert H. Wollenberg
    • C07 - ORGANIC CHEMISTRY