Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7630362 | STM switching arrangement | Mark T. Jeffrey, Thomas S. Maddern | 2009-12-08 |
| 7487263 | Partially interconnected networks | Geoffrey Chopping | 2009-02-03 |
| 7483372 | Communication network | Thomas S. Maddern, Geoffrey Chopping, Henry Anthony Branfield, David I. Scott | 2009-01-27 |
| 7444431 | Partially interconnected networks | Geoffrey Chopping | 2008-10-28 |
| 7180897 | Telecommunications systems | — | 2007-02-20 |
| 7050442 | Communications system, bus and method for communication of ATM data traffic | — | 2006-05-23 |
| 6700885 | Telecommunications system | Thomas S Madden | 2004-03-02 |
| 6480608 | Method for exchanging cryptographic keys in an ATM network using multiple virtual paths or circuits | — | 2002-11-12 |
| 6426964 | Telecommunications access systems and equipment | — | 2002-07-30 |
| 6271951 | Telecommunications network | — | 2001-08-07 |
| 6185225 | Telecommunications equipment operable at two data rates | — | 2001-02-06 |
| 6097736 | Telecommunications network | Thomas S. Maddern, Michael Denis Batts | 2000-08-01 |
| 5872645 | Telecommunications network | — | 1999-02-16 |
| 5847749 | Video reporting system for enabling real-time, unidirectional data transmission from mobile sources | Michael Denis Batts | 1998-12-08 |
| 5793509 | Telecommunications network | Thomas S. Maddern | 1998-08-11 |
| 5790552 | Statistical gain using ATM signalling | Michael Denis Batts, Mark T. Jeffrey | 1998-08-04 |
| 5703879 | ATM switching arrangement | Mark T. Jeffrey, Thomas S. Maddern | 1997-12-30 |
| 5544168 | ATM switching arrangement | Mark T. Jeffrey, Thomas S. Maddern | 1996-08-06 |
| 5528406 | Telecommunications switching device | Mark T. Jeffrey, Peter Duthie | 1996-06-18 |
| 5459724 | ATM switching arrangement | Mark T. Jeffrey, Thomas S. Maddern | 1995-10-17 |
| 5303232 | High performance asynchronous transfer mode switch | Thomas S. Maddern, Mark T. Jeffrey, Alexander S. Philip | 1994-04-12 |
| 5271004 | Asynchronous transfer mode switching arrangement providing broadcast transmission | Thomas S. Maddern | 1993-12-14 |
| 5123021 | Message routing check system | Geoffrey Chopping, Thomas S. Maddern | 1992-06-16 |
| 5109378 | Asynchronous time division switch with increased traffic handling capability | Thomas S. Maddern, Alexander S. Philip | 1992-04-28 |
| 5042038 | Data path checking system | Thomas S. Maddern | 1991-08-20 |