TREA

Johan W. C. De Vries

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  • Eindhoven, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piezoelectric element
    • Patent number 5,721,464
    • Issue date Feb 24, 1998
    • U.S. Philips Corporation
    • Uwe Dibbern
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Method of manufacturing mono-layer capacitors
    • Patent number 5,160,762
    • Issue date Nov 3, 1992
    • U.S. Philips Corporation
    • Hans-Wolfgang Brand
    • H01 - BASIC ELECTRIC ELEMENTS