TREA

Douglas O. Mullins

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Systems and methods for servicing ball valves
    • Patent number 6,640,826
    • Issue date Nov 4, 2003
    • GATX Rail Corporation
    • Douglas O. Mullins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Systems and methods for servicing ball valves
    • Publication number 20030070709
    • Publication date Apr 17, 2003
    • Douglas O. Mullins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...