TREA

Howard L. Ledeen

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  • Flintridge, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    System and method for locating release of fluid from a pipeline
    • Patent number 5,708,193
    • Issue date Jan 13, 1998
    • Caldon Company
    • Howard L. Ledeen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Low power valve actuator
    • Patent number 5,085,401
    • Issue date Feb 4, 1992
    • H. L. Ledeen Associates
    • Robert J. Botting
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    System for precise valve control
    • Patent number 4,542,814
    • Issue date Sep 24, 1985
    • Ledeem Flow Control Systems, Inc.
    • Howard L. Ledeen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...