Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9730267 | Methods and devices for radio bearer release | Peter Östrup | 2017-08-08 |
| 7623789 | Low loss WDM add drop node | Ulf Persson | 2009-11-24 |
| 7343093 | Protected bidirectional WDM network | Ulf Persson | 2008-03-11 |
| 7308201 | Optical communication system | Ulf Persson | 2007-12-11 |
| 7218805 | WDM ring network for flexible connections | — | 2007-05-15 |
| 7136583 | Protection in mixed optical WDM systems | Anders Lundberg | 2006-11-14 |
| 7110673 | Optical communication system | Ulf Persson | 2006-09-19 |
| 6980742 | Wavelength control in optical WDM systems | Fredrik Lidén | 2005-12-27 |
| 6915075 | Protection of WDM-channels | Nigel Wood, Jonas Hemgren | 2005-07-05 |
| 6654513 | Path monitoring in optical communication systems | Fredrik Lidén, Johan Sandell, Sven Wingstrand | 2003-11-25 |
| 6590681 | Optical WDM network having an efficient use of wavelengths and a node therefor | Lars Egnell, Bengt Johansson, Robert Batchellor, Nigel Wood | 2003-07-08 |
| 6215583 | System with feedback controlled optical amplifiers | Bo Lagerstrom, Gunnar Forsberg, Dag Bonnedal, Bengt Johansson | 2001-04-10 |
| 6160648 | Method and arrangement for detecting faults in a network | Bo Lagerstrom, Mangus Sundelin, Bengt Johansson | 2000-12-12 |
| 6049405 | Optical node in an optical bus network | — | 2000-04-11 |
| 6034798 | Optical network and arrangement and method in such network | — | 2000-03-07 |
| 5963348 | Method for assignment of wavelength channels in an optical bus network | — | 1999-10-05 |
| 5940551 | Optical NxN wavelength crossconnect | — | 1999-08-17 |
| 5663790 | Method and apparatus for determination of refractive index | Bjorn Ekstrom | 1997-09-02 |