TREA

Ryan L. Bolkema

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  • Hull, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluid power helical rotary actuator
    • Patent number 8,904,917
    • Issue date Dec 9, 2014
    • Rosenboom Machines & Tool, Inc.
    • Darin Michael Rosenboom
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic actuator
    • Patent number 7,213,504
    • Issue date May 8, 2007
    • Rosenboom Machine & Tool, Inc.
    • Darin Michael Rosenboom
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTI-STAGE, TELESCOPING HYDRAULIC CYLINDER, CYLINDER BEARING PROTE...
    • Publication number 20230366414
    • Publication date Nov 16, 2023
    • Rosenboom Machine & Tool, Inc.
    • Darin M. Rosenboom
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    FLUID POWER HELICAL ROTARY ACTUATOR
    • Publication number 20120263616
    • Publication date Oct 18, 2012
    • Rosenboom Machine & Tool, Inc.
    • DARIN MICHAEL ROSENBOOM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Hydraulic actuator
    • Publication number 20060243130
    • Publication date Nov 2, 2006
    • Rosenboom Machine & Tool, Inc.
    • Darin M. Rosenboom
    • B66 - HOISTING LIFTING HAULING