Frank-Michael Wittig

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Braunschweig, DE

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Patents Grantslast 30 patents

Information Patent Grant
Diagnostic method and device for checking the functionality of a co...
- Patent number 11,236,659
- Issue date Feb 1, 2022
- Volkswagen Aktiengesellschaft
- Christian Riechert
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method for detecting the state of a catalytic converter system
- Patent number 6,901,742
- Issue date Jun 7, 2005
- Volkswagen AG
- Axel Lang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust system of a multi-cylinder internal combustion engine and a...
- Patent number 6,880,328
- Issue date Apr 19, 2005
- Volkswagen AG
- Michael Daetz
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
Exhaust system of a multi-cylinder internal combustion engine and a...
- Publication number 20030014967
- Publication date Jan 23, 2003
- Michael Daetz
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...