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Douglas Rene Johnson

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  • Waterloo, IA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Hydro-Mechanical Transmission And Valve Assembly
    • Publication number 20100287925
    • Publication date Nov 18, 2010
    • Douglas R. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Split Path Power Shift Transmission
    • Publication number 20100113209
    • Publication date May 6, 2010
    • Douglas Rene Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Dual Path Hydromechanical Powertrain
    • Publication number 20090280943
    • Publication date Nov 12, 2009
    • Werner Stettler, JR.
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Hydro-mechanical transmission and valve assembly
    • Publication number 20080020894
    • Publication date Jan 24, 2008
    • Douglas R. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydraulic lubrication filter assembly
    • Publication number 20070209983
    • Publication date Sep 13, 2007
    • Deere & Company, a Delaware corporation
    • Douglas Rene Johnson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Back-up steering system for track laying vehicles
    • Publication number 20050092532
    • Publication date May 5, 2005
    • Douglas Rene Johnson
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Transmission with a two-step actuator valve
    • Publication number 20030205440
    • Publication date Nov 6, 2003
    • Deere & Company, a Delaware corporation
    • Douglas Rene Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...