Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8669469 | Cooling of high voltage devices | Dan Gustavsson, Fredrik Petrisi, Peter Sjöberg, Lars Svedjehed | 2014-03-11 |
| 8044297 | Ground electrode | Gunnar Asplund, Gunnar Flisberg, Lars Weimers, Jan Lundquist, Dan Karlsson | 2011-10-25 |
| 7939751 | Land electrode | Gunnar Asplund, Olof Heyman | 2011-05-10 |
| 7830679 | Transmission system | Ulf Radbrant | 2010-11-09 |
| 6205039 | Device for supervising a high voltage converter station | Hans Björklund, Krister Nyberg, Roland Siljeström, Gunnar Asplund | 2001-03-20 |
| 6198641 | Plant for transmitting electric power including bidirectionally controlled thyristors (BCT) | Bruno Halvarsson, Lars Hermansson | 2001-03-06 |
| 6185116 | HVDC power transmission system with cooling and switching device temperature detection | Krister Nyberg, Roland Siljeström, Gunnar Asplund, Hans Björklund | 2001-02-06 |
| 6140588 | Arrangement at a conductor on high voltage potential | Stefan Valdemarsson, Anders Björklund, Mats Leijon, Tommy Holmgren, Dan Windmar | 2000-10-31 |
| 5414612 | HVDC transmission with a converter connected between an AC voltage and a DC link common to the converters | Per-Erik Bjorklund, Bernt Bergdahl, John J. Vithayathil | 1995-05-09 |
| 5399803 | Valve stack for high voltages having fire screen means located between valve modules | Mats Johansson, Fredrik Ruter | 1995-03-21 |
| 5371651 | Power semiconductor valve device for outdoor location | Gunnar Asplund, Bjorn Sandin | 1994-12-06 |