John C. Haraf

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Livonia, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Canister purge control method
- Patent number 5,351,193
- Issue date Sep 27, 1994
- General Motors Corporation
- David C. Poirier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Determining barometric pressure using a manifold pressure sensor
- Patent number 4,926,335
- Issue date May 15, 1990
- General Motors Corporation
- Barbara A. Flowers
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Control method for protecting a viscous converter clutch in a motor...
- Patent number 4,828,082
- Issue date May 9, 1989
- General Motors Corporation
- Gary J. Brand
- B60 - VEHICLES IN GENERAL