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Nathaniel Keith Harshman

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  • Sullivan, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circle drive system for a grading machine
    • Patent number 12,209,385
    • Issue date Jan 28, 2025
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Retention assembly for grader machine blade
    • Patent number 12,018,453
    • Issue date Jun 25, 2024
    • Caterpillar Inc.
    • Nathaniel Keith Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Seal assembly for a grading machine
    • Patent number 11,976,716
    • Issue date May 7, 2024
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Pin for coupler assemblies
    • Patent number 11,603,642
    • Issue date Mar 14, 2023
    • Caterpillar Inc.
    • Nathan Tissier
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Circle drive system with clutch protection in motor graders
    • Patent number 11,578,471
    • Issue date Feb 14, 2023
    • Caterpillar Inc.
    • Eric Matthew Gray
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Circle drive control system for a grading machine
    • Patent number 11,572,669
    • Issue date Feb 7, 2023
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Motor grader circle drawbar debris remover
    • Patent number 11,505,912
    • Issue date Nov 22, 2022
    • Caterpillar Inc.
    • Benjamin J. Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Circle drive system for a grading machine
    • Patent number 11,492,779
    • Issue date Nov 8, 2022
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Sealing assembly
    • Patent number 11,453,996
    • Issue date Sep 27, 2022
    • Caterpillar Inc.
    • Benjamin Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Support assembly for a grading machine
    • Patent number 11,447,927
    • Issue date Sep 20, 2022
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Coupler assembly to rotatably couple brackets to beams
    • Patent number 11,352,762
    • Issue date Jun 7, 2022
    • Caterpillar Inc.
    • Nathan Tissier
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Extendable scarifier system
    • Patent number 11,268,258
    • Issue date Mar 8, 2022
    • Caterpillar Inc.
    • Benjamin J. Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Multipiece v-rail wear strip
    • Patent number 11,236,486
    • Issue date Feb 1, 2022
    • Caterpillar Inc.
    • Bruce Raymond Vahling
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Circle drive system for a grading machine
    • Patent number 11,230,820
    • Issue date Jan 25, 2022
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Retention assembly for grader machine blade
    • Patent number 11,041,286
    • Issue date Jun 22, 2021
    • Caterpillar Inc.
    • Nathaniel Keith Harshman
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Work attachment for motor grader
    • Patent number 10,458,081
    • Issue date Oct 29, 2019
    • Caterpillar Inc.
    • Sean Michael Hayes
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    MOLDBOARD MODULAR RAIL DESIGN
    • Publication number 20250034835
    • Publication date Jan 30, 2025
    • Caterpillar Inc.
    • Bruce Raymond VAHLING
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    SNOW WING ASSEMBLY HAVING INDEPENDENT ROTATIONAL CONTROLS
    • Publication number 20230349118
    • Publication date Nov 2, 2023
    • Caterpillar Inc.
    • Benjamin J. KOVALICK
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    DUAL STAGE LIFT SYSTEM FOR A SNOW WING
    • Publication number 20230257950
    • Publication date Aug 17, 2023
    • Caterpillar Inc.
    • Bruce Raymond VAHLING
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    HYDRAULIC SYSTEMS FOR GRADING MACHINES
    • Publication number 20230130171
    • Publication date Apr 27, 2023
    • Caterpillar Inc.
    • Ernest E. Stoops
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CIRCLE DRIVE SYSTEM FOR A GRADING MACHINE
    • Publication number 20220145582
    • Publication date May 12, 2022
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CIRCLE DRIVE SYSTEM WITH CLUTCH PROTECTION IN MOTOR GRADERS
    • Publication number 20220049456
    • Publication date Feb 17, 2022
    • Caterpillar Inc.
    • Eric Matthew Gray
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    RETENTION ASSEMBLY FOR GRADER MACHINE BLADE
    • Publication number 20210246629
    • Publication date Aug 12, 2021
    • Caterpillar Inc.
    • Nathaniel Keith Harshman
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    EXTENDABLE SCARIFIER SYSTEM
    • Publication number 20210230830
    • Publication date Jul 29, 2021
    • Caterpillar Inc.
    • Benjamin J. Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    MOTOR GRADER CIRCLE DRAWBAR DEBRIS REMOVER
    • Publication number 20210102355
    • Publication date Apr 8, 2021
    • Caterpillar Inc.
    • Benjamin J. Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    SEAL ASSEMBLY FOR A GRADING MACHINE
    • Publication number 20210062908
    • Publication date Mar 4, 2021
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SUPPORT ASSEMBLY FOR A GRADING MACHINE
    • Publication number 20210062461
    • Publication date Mar 4, 2021
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    SEALING ASSEMBLY
    • Publication number 20210054594
    • Publication date Feb 25, 2021
    • Caterpillar Inc.
    • Benjamin Kovalick
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    MULTIPIECE V-RAIL WEAR STRIP
    • Publication number 20210002854
    • Publication date Jan 7, 2021
    • Caterpillar Inc.
    • Bruce Raymond Vahling
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CIRCLE DRIVE CONTROL SYSTEM FOR A GRADING MACHINE
    • Publication number 20210002856
    • Publication date Jan 7, 2021
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CIRCLE DRIVE SYSTEM FOR A GRADING MACHINE
    • Publication number 20200370276
    • Publication date Nov 26, 2020
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    PIN FOR COUPLER ASSEMBLIES
    • Publication number 20200354924
    • Publication date Nov 12, 2020
    • Caterpillar Inc.
    • Nathan Tissier
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    COUPLER ASSEMBLY TO ROTATABLY COUPLE BRACKETS TO BEAMS
    • Publication number 20200354922
    • Publication date Nov 12, 2020
    • Caterpillar Inc.
    • Nathan Tissier
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CIRCLE DRIVE SYSTEM FOR A GRADING MACHINE
    • Publication number 20200263387
    • Publication date Aug 20, 2020
    • Caterpillar Inc.
    • Nathaniel K. HARSHMAN
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    RETENTION ASSEMBLY FOR GRADER MACHINE BLADE
    • Publication number 20190177949
    • Publication date Jun 13, 2019
    • Caterpillar Inc.
    • Nathaniel Keith Harshman
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK ATTACHMENT FOR MOTOR GRADER
    • Publication number 20190063021
    • Publication date Feb 28, 2019
    • Caterpillar Inc.
    • Sean Michael Hayes
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    TURNBUCKLE
    • Publication number 20190063569
    • Publication date Feb 28, 2019
    • Caterpillar Inc.
    • Nathaniel K. Harshman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MOLDBOARD WEAR STRIP
    • Publication number 20180106013
    • Publication date Apr 19, 2018
    • Caterpillar Inc.
    • David Cox
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    DRAWBAR ASSEMBLY FOR MOTOR GRADER
    • Publication number 20180080194
    • Publication date Mar 22, 2018
    • Caterpillar Inc.
    • Sean M. Hayes
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    HOUSING OF A BALL JOINT ASSEMBLY
    • Publication number 20160215814
    • Publication date Jul 28, 2016
    • Caterpillar Inc.
    • David L. Cox
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...