Andre J. Robert

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Woodlawn, CA

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Patents Grantslast 30 patents

Information Patent Grant
Screen-based telephone set for interactive enhanced telephony service
- Patent number 6,064,732
- Issue date May 16, 2000
- Northern Telecom Limited
- William V. Pezzullo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mechanism for multiplexing ATM AAL5 virtual circuits over ethernet
- Patent number 5,946,313
- Issue date Aug 31, 1999
- Northern Telecom Limited
- David Ian Allan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Screen-based telephone set for interactive enhanced telephony service
- Patent number 5,615,257
- Issue date Mar 25, 1997
- Northern Telecom Limited
- William V. Pezzullo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone subscriber line voltage change detection
- Patent number 5,287,404
- Issue date Feb 15, 1994
- Northern Telecom Limited
- David A. Pepper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE