TREA

David H. Edwards

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  • Munith, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Float operated pneumatic pump to separate hydrocarbon from water
    • Patent number 6,039,546
    • Issue date Mar 21, 2000
    • QED Environmental Systems, Inc.
    • David H. Edwards
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Float operated pneumatic pump
    • Patent number 5,495,890
    • Issue date Mar 5, 1996
    • QED Environmental Systems, Inc.
    • David H. Edwards
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Float operated pneumatic pump
    • Patent number 5,358,038
    • Issue date Oct 25, 1994
    • QED Environmental Systems, Inc.
    • David H. Edwards
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Float operated pneumatic pump
    • Patent number 5,358,037
    • Issue date Oct 25, 1994
    • QED Environmental Systems, Inc.
    • David H. Edwards
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Recovery and control system for leachate collection
    • Patent number 4,727,936
    • Issue date Mar 1, 1988
    • QED Environmental Systems, Inc.
    • David Mioduszewski
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Piston pump
    • Publication number 20060018776
    • Publication date Jan 26, 2006
    • QED Environmental Systems, Inc.
    • David Mioduszewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...