John Griffiths Johnston

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Suffolk, GB

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Patents Grantslast 30 patents

Information Patent Grant
Communications system with direct access mailbox
- Patent number 7,756,258
- Issue date Jul 13, 2010
- British Telecommunications plc
- David J Clift
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Service node for a telephony network
- Patent number 6,038,310
- Issue date Mar 14, 2000
- British Telecommunications public limited company
- Steven Hollywood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Service node for a telephony network
- Patent number 5,793,845
- Issue date Aug 11, 1998
- British Telecommunications public limited company
- Steven Hollywood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching in a telecommunications service node
- Patent number 5,610,912
- Issue date Mar 11, 1997
- British Telecommunications public limited company
- John G. Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Communications system with direct access mailbox
- Publication number 20070168428
- Publication date Jul 19, 2007
- David J. Clift
- H04 - ELECTRIC COMMUNICATION TECHNIQUE