TREA

EFKA - CHEMICALS B.V., A CORP. OF THE NETHERLANDS

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  • HILLEGOM, NL
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Dispersing agent
    • Patent number 5,882,393
    • Issue date Mar 16, 1999
    • EFKA-Chemicals B.V.
    • Peter Hermann Quednau
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Dispersant
    • Patent number 5,688,858
    • Issue date Nov 18, 1997
    • EFKA-Chemicals B.V.
    • Peter Hermann Quednau
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dispersing agents, their use and solids coated therewith
    • Patent number 5,425,900
    • Issue date Jun 20, 1995
    • EFKA-Chemicals B.V.
    • Peter H. Quednau
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dispersing agents, their use and solids coated therewith
    • Patent number 5,399,294
    • Issue date Mar 21, 1995
    • EFKA-Chemicals B.V.
    • P. H. Quednau
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Trademarklast 30 trademarks

  • Information Trademark

    74319597 - EFKA
    • Serial number 74319597
    • Registration number 2057646
    • Filing date Sep 30, 1992
    • Efka Chemicals B.V.
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry