TREA

Robert W. Lehmann

Follow

Person

  • Fort Wayne, IN, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Hybrid valve stem seal retainer assembly
    • Patent number 9,371,749
    • Issue date Jun 21, 2016
    • Dana Automotive Systems Group, LLC
    • Timothy A. Hegemier
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Eccentricity tolerant valve stem seal assembly
    • Patent number 9,052,018
    • Issue date Jun 9, 2015
    • Dana Automotive Systems Group, Inc.
    • Timothy A. Hegemier
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil metering valve seal
    • Patent number 7,438,036
    • Issue date Oct 21, 2008
    • Dana Automotive Systems Group, LLC
    • Eric W. Hesher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Valve stem seal assembly with locator system
    • Patent number 6,647,943
    • Issue date Nov 18, 2003
    • Dana Corporation
    • Mark A. Leimer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Valve stem seal with pads and tangs
    • Patent number 6,230,679
    • Issue date May 15, 2001
    • Dana Corporation
    • Timothy A. Hegernier
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust pipe flange gasket
    • Patent number 5,558,344
    • Issue date Sep 24, 1996
    • Dana Corporation
    • Michael J. Kestly
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    HYBRID VALVE STEM SEAL RETAINER ASSEMBLY
    • Publication number 20130200574
    • Publication date Aug 8, 2013
    • Timothy A. Hegemier
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ECCENTRICITY TOLERANT VALVE STEM SEAL ASSEMBLY
    • Publication number 20130015625
    • Publication date Jan 17, 2013
    • Timothy A. Hegemier
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Oil metering valve seal
    • Publication number 20060169942
    • Publication date Aug 3, 2006
    • Eric W. Hesher
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Valve stem seal assembly with locator system
    • Publication number 20030024497
    • Publication date Feb 6, 2003
    • Dana Corporation
    • Mark A. Leimer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES