William T. Ross

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Dunrobin, 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
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
Digital FSK demodulator with automatic offset cancellation
- Patent number 5,436,590
- Issue date Jul 25, 1995
- Northern Telecom Limited
- J. M. A. Frederic Simard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE