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Alexander Van Geen

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  • New York, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Peltier freeze-shoe sampler to recover aquifer sediment and groundw...
    • Patent number 8,701,505
    • Issue date Apr 22, 2014
    • The Trustees of Columbia University In the City of New York
    • Alexander van Geen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Reagents for arsenic meter
    • Patent number 7,446,874
    • Issue date Nov 4, 2008
    • The Trustees of Columbia University in the City of New York
    • Alexander Van Geen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Arsenic meter
    • Patent number 7,336,362
    • Issue date Feb 26, 2008
    • The Trustees of Columbia University In the City of New York
    • Alexander Van Geen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Reagents for arsenic meter
    • Patent number 7,315,375
    • Issue date Jan 1, 2008
    • The Trustees of Columbia University In the City of New York
    • Alexander Van Geen
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents