Andrew D Chattell

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Ipswich, GB

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Patents Grantslast 30 patents

Information Patent Grant
Access circuit test for transfer engineering
- Patent number 8,320,259
- Issue date Nov 27, 2012
- British Telecommunications public limited company
- Ping Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Joint fault detection
- Patent number 7,512,216
- Issue date Mar 31, 2009
- British Telecommunications plc
- Ping Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telecommunications line parameter estimation
- Patent number 7,418,083
- Issue date Aug 26, 2008
- British Telecommunications plc
- Andrew D Chattell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fault location on a telecommunications network
- Patent number 7,359,330
- Issue date Apr 15, 2008
- British Telecommunications public limited company
- Nicholas Lunt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fault location in a telecommunications network
- Patent number 6,950,497
- Issue date Sep 27, 2005
- British Telecommunications public limited company
- Ian R Drury
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ACCESS CIRCUIT TEST FOR TRANSFER ENGINEERING
- Publication number 20100034099
- Publication date Feb 11, 2010
- Ping Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Joint Fault Detection
- Publication number 20070210809
- Publication date Sep 13, 2007
- Peng Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fault detection method and apparatus for telephone lines
- Publication number 20050141673
- Publication date Jun 30, 2005
- British Telecommunications public limited company
- Nicholas Lunt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fault location on a telecommunications network
- Publication number 20030067881
- Publication date Apr 10, 2003
- Nicholas Lunt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Telecommunications line parameter estimation
- Publication number 20030063712
- Publication date Apr 3, 2003
- Andrew D Chattell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE