TREA

Jacob W. de Ruiter

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  • Eindhoven, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing a low-pressure mercury vapor discharge lamp...
    • Patent number 4,571,522
    • Issue date Feb 18, 1986
    • U.S. Philips Corporation
    • Jan de Vries
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Heating device
    • Patent number 4,136,733
    • Issue date Jan 30, 1979
    • U.S. Philips Corporation
    • George A. A. Asselman
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Induction melting furnace
    • Patent number 4,060,692
    • Issue date Nov 29, 1977
    • U.S. Philips Corporation
    • Pieter Aart Naastepad
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Heating device
    • Patent number 3,965,334
    • Issue date Jun 22, 1976
    • George Albert Apolonia Asselman
    • F28 - HEAT EXCHANGE IN GENERAL