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Hubert A. Lechavelier

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  • Piscataway, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Recovery of metals
    • Patent number 4,293,334
    • Issue date Oct 6, 1981
    • Engelhard Minerals & Chemicals Corporation
    • Walter Drobot
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for recovering precious metals
    • Patent number 4,289,531
    • Issue date Sep 15, 1981
    • Engelhard Minerals & Chemicals Corporation
    • Hubert A. Lechavelier
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...