DC

Donald E. A. Clarke

BL British Telecommunications Public Limited: 9 patents #71 of 1,458Top 5%
Overall (All Time): #590,530 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5854701 Passive optical network Michael A. Hale, Jeremy B. Chuter 1998-12-29
5572349 Communications system Michael A. Hale 1996-11-05
5548432 Passive optical network switchable between an operational mode and a diagnostic mode Michael A. Hale, Jeremy B. Chuter 1996-08-20
5479286 Optical fibre communications system Kevin D. Stalley, Paul Adrian Rosher 1995-12-26
5453988 Passive optical network 1995-09-26
5453865 Monitoring system David W. Faulkner, John W. Ballance, Michael A. Hale 1995-09-26
5367394 Test apparatus Jeremy B. Chuter, Michael A. Hale 1994-11-22
5353143 Optical receiver 1994-10-04
5341365 Passive optical network 1994-08-23