Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8422260 | Arrangement for voltage conversion | — | 2013-04-16 |
| 8410883 | High voltage dry-type reactor for a voltage source converter | Björn Jacobson | 2013-04-02 |
| 8400796 | Power converter with distributed cell control | Lars Döfnäs, Lennart Harnefors, Anders Pettersson, Roland Siljeström | 2013-03-19 |
| 8385097 | Method for controlling a voltage source converter and a voltage converting apparatus | — | 2013-02-26 |
| 8345457 | Voltage source converter for high voltage direct current power transmission | Lars-Erik Juhlin | 2013-01-01 |
| 8339823 | Voltage source converter | Björn Jacobson | 2012-12-25 |
| 8289736 | Conversion of AC lines to HVDC lines | — | 2012-10-16 |
| 8044297 | Ground electrode | Gunnar Flisberg, Lars Weimers, Jan Lundquist, Urban Astrom, Dan Karlsson | 2011-10-25 |
| 8044537 | Modular HVDC converter | Mats Hyttinen | 2011-10-25 |
| 7939751 | Land electrode | Olof Heyman, Urban Astrom | 2011-05-10 |
| 7321500 | Electric power converter | Ying-Jiang HAFNER, Johan Lindberg, Peter Lundberg, Jan R. Svensson, Rolf Pålsson | 2008-01-22 |
| 6898095 | Bidirectional VSC converter with a resonant circuit | Bo Bijlenga, Peter Lundberg, Tomas Jonsson, Niklas Johansson, Staffan Norrga | 2005-05-24 |
| 6519169 | Multiphase inverter with series of connected phase legs | Bo Bijlenga | 2003-02-11 |
| 6278314 | Electric circuit | Bo Danielsson, Willy Hermansson, Peter Lundberg, Christer Ovren, Anders Åberg | 2001-08-21 |
| 6205039 | Device for supervising a high voltage converter station | Urban Astrom, Hans Björklund, Krister Nyberg, Roland Siljeström | 2001-03-20 |
| 6185116 | HVDC power transmission system with cooling and switching device temperature detection | Urban Astrom, Krister Nyberg, Roland Siljeström, Hans Björklund | 2001-02-06 |
| 6151201 | Gas-insulated high-voltage semiconductor valve means | Olle Ekwall, Olaf Saksvik | 2000-11-21 |
| 6144567 | Plant for transmitting electric power, including VSC-converter and DC/DC-converter | Kjell Eriksson | 2000-11-07 |
| 6084787 | Device for supervising in a high voltage converter station | Krister Nyberg, Roland Siljeström, Hans Björklund, Urban strom | 2000-07-04 |
| 5999388 | Method and apparatus for limiting current in a direct voltage network of a power transmission system | — | 1999-12-07 |
| 5980095 | Plant for transmitting electric power | Kjell Eriksson | 1999-11-09 |
| 5969956 | Method and a device for communication in a high voltage converter station | Krister Nyberg, Hans Björklund, Roland Siljeström, Urban strom | 1999-10-19 |
| 5872707 | SVC converter with an extra phase leg to replace a failed phase leg | — | 1999-02-16 |
| 5644482 | HVDC transmission system with multiple converter stations | — | 1997-07-01 |
| 5644485 | Converter connection with a balancing circuit | — | 1997-07-01 |