James G. Osborn

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Allen, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of operating a distributed call progress tone detection system
- Patent number 7,471,787
- Issue date Dec 30, 2008
- EADS Telecom North America Inc.
- L. David Chambers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed call progress tone detection system and method of opera...
- Patent number 7,043,006
- Issue date May 9, 2006
- Aastra Intecom Inc.
- L. David Chambers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method of operating a distributed call progress tone detection system
- Publication number 20060159252
- Publication date Jul 20, 2006
- Aastra Intecom Inc., a corporation of the State of Delawar
- L. David Chambers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE