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David Craig Hageman

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  • Chagrin Falls, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Release pin
    • Patent number 8,162,581
    • Issue date Apr 24, 2012
    • Jergens, Inc.
    • Robert C. Soltis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Release pin
    • Patent number 7,914,225
    • Issue date Mar 29, 2011
    • Jergens, Inc.
    • David Craig Hageman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Release pin
    • Patent number 7,891,903
    • Issue date Feb 22, 2011
    • Jergens, Inc.
    • James C. Klingenberg
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Release pin
    • Patent number 7,731,465
    • Issue date Jun 8, 2010
    • Jergens, Inc.
    • Sean A. Stapulionis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Finger cap for release pin
    • Patent number D533436
    • Issue date Dec 12, 2006
    • Jergens, Inc.
    • Sean A. Stapulionis
    • D08 - Tools and hardware
  • Information Patent Grant

    Spotweld removal tool
    • Patent number 5,056,967
    • Issue date Oct 15, 1991
    • Premier Industrial Corporation
    • David C. Hageman
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CONTROL VALVE ASSEMBLY
    • Publication number 20130320252
    • Publication date Dec 5, 2013
    • EGC ENTERPRISES, INC.
    • David C. Hageman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MANWAY COVER FASTENER
    • Publication number 20130049381
    • Publication date Feb 28, 2013
    • David C. Hageman
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    PRESSURE SEAL
    • Publication number 20120261890
    • Publication date Oct 18, 2012
    • David C. Hageman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    RELEASE PIN
    • Publication number 20110008128
    • Publication date Jan 13, 2011
    • JERGENS, INC.
    • Robert C. Soltis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Release pin
    • Publication number 20080247814
    • Publication date Oct 9, 2008
    • Jergens, Inc.
    • David Craig Hageman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Release pin
    • Publication number 20080056814
    • Publication date Mar 6, 2008
    • Jergens, Inc.
    • James C. Klingenberg
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Rotary release pin
    • Publication number 20080056843
    • Publication date Mar 6, 2008
    • Jergens, Inc.
    • James C. Klingenberg
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Release pin
    • Publication number 20070003391
    • Publication date Jan 4, 2007
    • Jergens, Inc.
    • Sean A. Stapulionis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Release pin
    • Publication number 20070001408
    • Publication date Jan 4, 2007
    • Jergens, Inc.
    • Robert C. Soltis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Anchor and hoist ring device
    • Publication number 20040032134
    • Publication date Feb 19, 2004
    • David C. Hageman
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Clamp load indicator device for fasteners
    • Publication number 20030194287
    • Publication date Oct 16, 2003
    • David C. Hageman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...