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Patents Grantslast 30 patents

Information Patent Grant
Transmit channel request messaging for half-duplex voice communicat...
- Patent number 7,933,620
- Issue date Apr 26, 2011
- Research in Motion Limited
- Padakandla Krishna Rao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, system, and device for provisioned talkgroup identifier dis...
- Patent number 7,840,192
- Issue date Nov 23, 2010
- Research in Motion Limited
- Padakandla Krishna Rao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method, system, and device for provisioned talkgroup identifier dis...
- Publication number 20050197146
- Publication date Sep 8, 2005
- Padakandla Krishna Rao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmit channel request messaging for half-duplex voice communicat...
- Publication number 20050190723
- Publication date Sep 1, 2005
- Padakandla Krishna Rao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE