TREA

Norman Schaefer

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  • Pleasant Valley, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Combustible gas detection systems and method thereof
    • Patent number 7,159,444
    • Issue date Jan 9, 2007
    • Proton Energy Systems, Inc.
    • Edward Demarest
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Exhaust brake variable bypass circuit
    • Patent number 6,179,096
    • Issue date Jan 30, 2001
    • Diesel Engine Retarders, Inc.
    • Kevin Kinerson
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Exhaust restriction device
    • Patent number 6,109,027
    • Issue date Aug 29, 2000
    • Diesel Engine Retarders, Inc.
    • Norman Schaefer
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    System and method of exhaust brake control
    • Patent number 5,947,235
    • Issue date Sep 7, 1999
    • Diesel Engine Retarders, Inc.
    • Norman Schaefer
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Low restriction exhaust brake
    • Patent number 5,845,748
    • Issue date Dec 8, 1998
    • Diesel Engine Retarders, Inc.
    • Norman Schaefer
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents