Christian Wietfeld

Follow

Person

Falkensee, DE

People

Patents Applicationslast 30 patents

Information Patent Application
Method for monitoring data transmissions
- Publication number 20050091370
- Publication date Apr 28, 2005
- SIEMENS AKTIENGESELLSCHAFT
- Christian Wietfeld
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for creating or changing subscriber-related entries in a dat...
- Publication number 20040133681
- Publication date Jul 8, 2004
- Siemens AG
- Christian Wietfeld
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAP-group-call
- Publication number 20020009990
- Publication date Jan 24, 2002
- Mannesmann AG Siemens AG
- Stephan Kleier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE