TREA

Richard D. Hartz

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  • Lincoln, NE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Composite wastewater sampler
    • Patent number 6,178,831
    • Issue date Jan 30, 2001
    • Isco, Inc.
    • Brian D. Dawson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Composite wastewater sampler
    • Patent number 5,652,397
    • Issue date Jul 29, 1997
    • Isco, Inc.
    • Brian D. Dawson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Composite wastewater sampler
    • Patent number 5,341,690
    • Issue date Aug 30, 1994
    • Isco, Inc.
    • Brian D. Dawson
    • G01 - MEASURING TESTING