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Helmut Knoell

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  • Lautertal, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Addives for paraffinic lubricants
    • Patent number 5,043,087
    • Issue date Aug 27, 1991
    • Rohn GmbH
    • Horst Pennewiss
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Lubricating oil additives
    • Patent number 4,968,444
    • Issue date Nov 6, 1990
    • Rohm GmbH
    • Helmut Knoell
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Pour point improving additives for mineral oils
    • Patent number 4,867,894
    • Issue date Sep 19, 1989
    • Rohm GmbH
    • Horst Pennewiss
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Shear stable multirange oils having an improved viscosity index
    • Patent number 4,822,508
    • Issue date Apr 18, 1989
    • Rohm GmbH
    • Horst Pennewiss
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Concentrated emulsions of olefin copolymers
    • Patent number 4,665,121
    • Issue date May 12, 1987
    • Rohm GmbH
    • Horst Pennewiss
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Concentrated emulsions of olefin copolymers
    • Patent number 4,622,358
    • Issue date Nov 11, 1986
    • Rohm GmbH
    • Horst Pennewiss
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...