Jeffrey R. Coil

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Milford, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic key system including ignition and transmission control
- Patent number 6,653,747
- Issue date Nov 25, 2003
- Siemens VDO Automotive Corporation
- David T. Proefke
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Smart card with card in vehicle warning
- Patent number 6,386,447
- Issue date May 14, 2002
- Siemens Automotive Corporation
- David T. Proefke
- B60 - VEHICLES IN GENERAL