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Martinus Johannes Maria De Graaf

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  • Eindhoven, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Inductive element
    • Patent number 6,549,111
    • Issue date Apr 15, 2003
    • Koninklijke Philips Electronics N.V.
    • Martinus J. M. De Graaf
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of manufacturing a substantially closed core, core, and magn...
    • Patent number 6,492,893
    • Issue date Dec 10, 2002
    • Koninklijke Philips Electronics N.V.
    • Martinus Johannes Maria De Graaf
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Inductive element
    • Patent number 6,259,345
    • Issue date Jul 10, 2001
    • U.S. Philips Corporation
    • Martinus J.M. De Graaf
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents