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John C. Lahrman

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  • Richmond, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston ring with localized nitrided coating
    • Patent number 8,986,465
    • Issue date Mar 24, 2015
    • MAHLE Industries Inc.
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-rail piston ring
    • Patent number 8,403,334
    • Issue date Mar 26, 2013
    • Mahle Engine Components USA, Inc.
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cooling gallery insert for a piston
    • Patent number 8,047,123
    • Issue date Nov 1, 2011
    • Mahle Engine Components USA, Inc.
    • John C. Lahrman
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring
    • Patent number 7,997,185
    • Issue date Aug 16, 2011
    • Mahle Engine Components USA, Inc.
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston assembly and method of manufacture
    • Patent number 7,017,914
    • Issue date Mar 28, 2006
    • Dana Corporation
    • Steven John Sytsma
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas nitrided taper faced keystone piston ring incorporating a seali...
    • Patent number 5,901,963
    • Issue date May 11, 1999
    • Dana Corporation
    • Russell E. Hite
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring assembly
    • Patent number 5,794,941
    • Issue date Aug 18, 1998
    • Dana Corporation
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PISTON RING WITH LOCALIZED NITRIDED COATING
    • Publication number 20140197602
    • Publication date Jul 17, 2014
    • MAHLE International GmbH
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-RAIL PISTON RING
    • Publication number 20100171273
    • Publication date Jul 8, 2010
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COOLING GALLERY INSERT FOR A PISTON
    • Publication number 20090145295
    • Publication date Jun 11, 2009
    • John C. Lahrman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PISTON RING
    • Publication number 20080229922
    • Publication date Sep 25, 2008
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...