Allan Isfan

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Kanata, CA

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Patents Grantslast 30 patents

Information Patent Grant
System and method for overlaying DSL access multiplexer onto existi...
- Patent number 6,873,623
- Issue date Mar 29, 2005
- Ciena Corp.
- Andreas Weirich
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
System and method for overlaying DSL access multiplexer onto existi...
- Publication number 20020101823
- Publication date Aug 1, 2002
- Andreas Weirich
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fail to pots architecture
- Publication number 20020009180
- Publication date Jan 24, 2002
- Andreas Weirich
- H04 - ELECTRIC COMMUNICATION TECHNIQUE