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Mark J. Ollweiler

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  • Lakewood, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dual pressure-retaining manway system
    • Patent number 9,835,294
    • Issue date Dec 5, 2017
    • Trinity Tank Car, Inc.
    • Mark J. Ollweiler
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Dual Pressure-Retaining Manway System
    • Publication number 20150276133
    • Publication date Oct 1, 2015
    • Mark J. Ollweiler
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS