TREA

Pieter Dirk van Wassenaar

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  • Vlaardingen, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Enzymatic detergent compositions
    • Patent number 5,877,139
    • Issue date Mar 2, 1999
    • Lever Brothers Company, division of Conopco, Inc.
    • Eric Casteleijn
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Enzymatic detergent compositions
    • Patent number 5,798,327
    • Issue date Aug 25, 1998
    • Lever Brothers Company
    • Eric Casteleijn
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...