TREA

Gresen Manufacturing Company

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Organization

  • Minneapolis, MN, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically controlled proportional valve
    • Patent number 4,310,143
    • Issue date Jan 12, 1982
    • Gresen Manufacturing Company
    • Roger G. Determan
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Hydraulic valve having pressure compensated demand flow
    • Patent number 4,253,482
    • Issue date Mar 3, 1981
    • Gresen Manufacturing Company
    • William T. Stephens
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic control valve including electromagnetic detent
    • Patent number 4,195,551
    • Issue date Apr 1, 1980
    • Gresen Manufacturing Company
    • Herbert H. Schmiel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic control system
    • Patent number 4,154,262
    • Issue date May 15, 1979
    • Gresen Manufacturing Company
    • Nicholas C. Blume
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic control system
    • Patent number 4,129,987
    • Issue date Dec 19, 1978
    • Gresen Manufacturing Company
    • Nicholas C. Blume
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic pump or motor
    • Patent number 4,075,933
    • Issue date Feb 28, 1978
    • Gresen Manufacturing Company
    • William T. Stephens
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Orbital device
    • Patent number 4,025,243
    • Issue date May 24, 1977
    • Gresen Manufacturing Company
    • William T. Stephens
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hydraulic torque motor
    • Patent number RE28933
    • Issue date Aug 17, 1976
    • Gresen Manufacturing Company
    • Mortimer J. Huber
    • 418 - Rotary expansible chamber devices

Trademarklast 30 trademarks

  • Information Trademark

    72425892 - GRESEN
    • Serial number 72425892
    • Registration number 972722
    • Filing date May 30, 1972
    • GRESEN MANUFACTURING COMPANY
    • 7 - Machines and machine tools
  • Information Trademark

    72227029 - GRESEN MINNEAPOLIS
    • Serial number 72227029
    • Registration number 826824
    • Filing date Sep 2, 1965
    • GRESEN MANUFACTURING COMPANY
    • 7 - Machines and machine tools