Randy L. Dufresne

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Orchard Lake, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Thermally efficient exhaust treatment system for an internal combus...
- Patent number 8,353,154
- Issue date Jan 15, 2013
- GM Global Technology Operations LLC
- Robert Lionel Jacques
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for diagnosing catalytic converter performance
- Patent number 7,035,730
- Issue date Apr 25, 2006
- General Motors Corporation
- Vincent A. White
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
ENGINE EXHAUST GAS TREATMENT DEVICE INCLUDING ELECTRICALLY ACTUATED...
- Publication number 20110296820
- Publication date Dec 8, 2011
- GM Global Technology Operations, Inc.
- HALIM G. SANTOSO
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Thermally Efficient Exhaust Treatment System for an Internal Combus...
- Publication number 20110067387
- Publication date Mar 24, 2011
- GM Global Technology Operations, Inc.
- Robert Lionel Jacques
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD FOR DIAGNOSING CATALYTIC CONVERTER PERFORMANCE
- Publication number 20060047407
- Publication date Mar 2, 2006
- Vincent A. White
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES