TREA

Robert L. Jannen

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  • Huntsville, AL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pump for soil fumigant
    • Patent number 4,141,676
    • Issue date Feb 27, 1979
    • John Blue Company Division of Subscription Television, Inc.
    • Robert L. Jannen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotating nozzle sparging system for suspension fertilizer tanks
    • Patent number 4,100,610
    • Issue date Jul 11, 1978
    • John Blue Company Division of Subscription Television, Inc.
    • Douglas Johnston
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL