Dirk Karel Kettenes

Person

  • Putten, NL

Patents Grantslast 30 patents

  • Information Patent Grant

    Sulfur-containing flavoring agents

    • Patent number 4,477,678
    • Issue date Oct 16, 1984
    • P.F.W. Beheer B.V.
    • Steven van den Bosch
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Novel sulfur-containing flavoring agents

    • Patent number 4,380,655
    • Issue date Apr 19, 1983
    • P.F.W. Beheer B.V.
    • Steven van den Bosch
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Perfume compositions containing dialkyl delta-lactones

    • Patent number 4,288,350
    • Issue date Sep 8, 1981
    • Polak's Frutal Works B.V.
    • Kees N. Nieuwland
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Carane nitriles

    • Patent number 4,219,449
    • Issue date Aug 26, 1980
    • Polak's Frutal Works B.V.
    • Willem Lenselink
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    1-Crotonyl-2,2,6-trimethylcyclohexane

    • Patent number 4,136,066
    • Issue date Jan 23, 1979
    • P.F.W. Beheer B.V.
    • Douwe R. De Haan
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Sulfur-containing flavoring agents

    • Patent number 4,119,737
    • Issue date Oct 10, 1978
    • P.F.W. Beheer B.V.
    • Steven van den Bosch
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Flavoring with trans, E-1-crotonoyl-2,2,6-trimethylcyclohexane

    • Patent number 4,109,022
    • Issue date Aug 22, 1978
    • P.F.W. Beheer B.V.
    • Douwe Rienk de Haan
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    1-Crotonyl-2,2,6-trimethylcyclohexanes

    • Patent number 3,956,392
    • Issue date May 11, 1976
    • P.F.W. Beheer B.V.
    • Douwe Rienk DE Haan
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES