David Townsend

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Chapel Hill, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Turn around cellular telephone
- Patent number 6,751,487
- Issue date Jun 15, 2004
- Ericsson, Inc.
- Nils Rydbeck
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed radio telephone for use in a vehicle
- Patent number 6,542,758
- Issue date Apr 1, 2003
- Ericsson Inc.
- Sandeeep Chennakeshu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Distributed radio telephone for use in a vehicle
- Patent number 6,532,374
- Issue date Mar 11, 2003
- Ericsson Inc.
- Sandeep Chennakeshu
- B60 - VEHICLES IN GENERAL