TREA

Charles N. Johnson

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  • Racine, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic fluid dehydration system and method including pre-heating
    • Patent number 7,846,342
    • Issue date Dec 7, 2010
    • Putzmeister America, Inc.
    • Charles N. Johnson
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Turbulence-quelling fluid-flow controller and method
    • Patent number 5,158,235
    • Issue date Oct 27, 1992
    • Elwood Hydraulics Company, Inc.
    • Charles N. Johnson
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Cut-off valve
    • Patent number 5,129,420
    • Issue date Jul 14, 1992
    • Elwood Hydraulics Company, Inc.
    • Charles N. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...