Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639703 | Receiver transponder for protected networks | — | 2003-10-28 |
| 6590681 | Optical WDM network having an efficient use of wavelengths and a node therefor | Bengt Johansson, Robert Batchellor, Nigel Wood, Magnus Oberg | 2003-07-08 |
| 6574192 | Communications network and an add and drop node | — | 2003-06-03 |
| 6525852 | Add and drop node for an optical WDM network having traffic only between adjacent nodes | — | 2003-02-25 |