TREA

Roger D. Hanson

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  • Jackson, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Straight through muffler with conically-ended output passage
    • Patent number 6,158,546
    • Issue date Dec 12, 2000
    • Tenneco Automotive Inc.
    • Roger D. Hanson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Muffler with drain holes
    • Patent number 4,865,154
    • Issue date Sep 12, 1989
    • Tennessee Gas Pipeline Company
    • Roger D. Hanson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust gas silencing device
    • Patent number 4,744,440
    • Issue date May 17, 1988
    • Tenneco, Inc., Tenneco Automotive Bldg.
    • Roger D. Hanson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES