Steffen Kessler

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Burbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and monitoring system for monitoring at least one subscriber...
- Patent number 6,954,710
- Issue date Oct 11, 2005
- Deutsche Telekom
- Steffen Kessler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and monitoring system for monitoring at least one subscriber...
- Publication number 20030040890
- Publication date Feb 27, 2003
- Steffen Kessler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and device for detecting interruptions of speech/data channe...
- Publication number 20030031313
- Publication date Feb 13, 2003
- Steffen Kessler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE