TREA

Frank Richard Szpek JR.

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  • Franklin, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power shovel hoist machinery with auxiliary weight box
    • Patent number 9,702,250
    • Issue date Jul 11, 2017
    • Frank R. Szpek
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Multi-deck mining vehicle
    • Patent number 9,388,689
    • Issue date Jul 12, 2016
    • Caterpillar Global Mining LLC
    • David T. Bienfang
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Power shovel hoist machinery with auxiliary weight box
    • Patent number 9,127,435
    • Issue date Sep 8, 2015
    • Caterpillar Global Mining LLC
    • David T. Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Machine having dipper actuator system
    • Patent number 8,966,792
    • Issue date Mar 3, 2015
    • Caterpillar Inc.
    • David Thomas Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Machine having dipper actuator system
    • Patent number 8,959,805
    • Issue date Feb 24, 2015
    • Caterpillar Inc.
    • David Thomas Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Interlock system
    • Patent number 8,936,232
    • Issue date Jan 20, 2015
    • Caterpillar Global Mining LLC
    • Thomas Kowalski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Power shovel having isolated hydraulic dipper actuator
    • Patent number 8,935,865
    • Issue date Jan 20, 2015
    • Caterpillar Inc.
    • David Thomas Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Tubular drill mast
    • Patent number 5,956,915
    • Issue date Sep 28, 1999
    • Bucyrus International, Inc.
    • James P. Piper
    • E04 - BUILDING

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER SHOVEL HOIST MACHINERY WITH AUXILIARY WEIGHT BOX
    • Publication number 20150308266
    • Publication date Oct 29, 2015
    • Caterpillar Global Mining LLC
    • Frank R. Szpek
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    POWER SHOVEL HOIST MACHINERY AND BALLAST CONFIGURATION
    • Publication number 20140219763
    • Publication date Aug 7, 2014
    • Caterpillar Global Mining LLC
    • David T. Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    MULTI-DECK MINING VEHICLE
    • Publication number 20140219762
    • Publication date Aug 7, 2014
    • Caterpillar Global Mining LLC
    • David T. Bienfang
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    MACHINE HAVING DIPPER ACTUATOR SYSTEM
    • Publication number 20140205415
    • Publication date Jul 24, 2014
    • Caterpillar Inc.
    • David Thomas Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    MACHINE HAVING DIPPER ACTUATOR SYSTEM
    • Publication number 20140202048
    • Publication date Jul 24, 2014
    • Caterpillar Inc.
    • David Thomas Bienfang
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    POWER SHOVEL HAVING ISOLATED HYDRAULIC DIPPER ACTUATOR
    • Publication number 20140205414
    • Publication date Jul 24, 2014
    • Caterpillar Inc.
    • David Thomas BIENFANG
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    INTERLOCK SYSTEM
    • Publication number 20130043339
    • Publication date Feb 21, 2013
    • Caterpillar Global Mining LLC
    • Thomas Kowalski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING