RS

Roland Siljeström

AA Abb Technology Ag: 9 patents #82 of 1,391Top 6%
AS Asea Brown Boveri, S.A.: 2 patents #162 of 1,048Top 20%
AA Abb Schweiz Ag: 1 patents #1,465 of 3,274Top 45%
Overall (All Time): #418,256 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
9667133 Black start of a multilevel voltage source converter Fabienne Chataignere, Lars Döfnäs, Rolf Ottersten, Patrik Sandquist 2017-05-30
9065326 Switching module for use in a device to limit and/or break the current of a power transmission or distribution line Jürgen Häfner, Peter Lundberg, Ulrich Schlapbach, Bo Biljenga 2015-06-23
8896364 Reliability in semiconductor device control Jürgen Häfner, Mikael Davidsson 2014-11-25
8779730 Capacitor discharge in a cell based voltage source converter Ying Jiang-Häfner, Lars Döfnäs 2014-07-15
8400796 Power converter with distributed cell control Lars Döfnäs, Lennart Harnefors, Anders Pettersson, Gunnar Asplund 2013-03-19
7239535 Voltage source converter Lars Döfnäs, Ying Jiang-Häfner 2007-07-03
7206211 Converter and a method for controlling a converter Ingemar Blidberg, Kjell Svensson 2007-04-17
6205039 Device for supervising a high voltage converter station Urban Astrom, Hans Björklund, Krister Nyberg, Gunnar Asplund 2001-03-20
6185116 HVDC power transmission system with cooling and switching device temperature detection Urban Astrom, Krister Nyberg, Gunnar Asplund, Hans Björklund 2001-02-06
6084787 Device for supervising in a high voltage converter station Krister Nyberg, Hans Björklund, Urban strom, Gunnar Asplund 2000-07-04
5969956 Method and a device for communication in a high voltage converter station Krister Nyberg, Hans Björklund, Gunnar Asplund, Urban strom 1999-10-19
5684465 Method and means for supervision of valve units Fras Robert Andersson 1997-11-04