TREA

Ryan M. Duffek

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  • Dunlap, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    System for treating exhaust gas
    • Patent number 8,097,055
    • Issue date Jan 17, 2012
    • Caterpillar Inc.
    • Thomas V. Staley
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    System for treating exhaust gas
    • Patent number 8,092,563
    • Issue date Jan 10, 2012
    • Caterpillar Inc.
    • Richard A. Crandell
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Engine exhaust treatment device housing
    • Patent number D590419
    • Issue date Apr 14, 2009
    • Caterpillar Inc.
    • Ryan M. Duffek
    • D15 - Machines not elsewhere specified

Patents Applicationslast 30 patents

  • Information Patent Application

    System for treating exhaust gas
    • Publication number 20090107115
    • Publication date Apr 30, 2009
    • Caterpillar Inc.
    • Thomas V. Staley
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    System for treating exhaust gas
    • Publication number 20090107127
    • Publication date Apr 30, 2009
    • Caterpillar Inc.
    • Richard A. Crandell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES