Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11664610 | Telescopic electric conductor and high voltage arrangement | Jonas Sandin, Olov Andersson, Neven Bucan | 2023-05-30 |
| 10064260 | Ground system for high voltage semiconductor valve | Christer Sjöberg, Erik Doré, Johannes Gran Hirvioja | 2018-08-28 |
| 9774106 | Grounding system | Erik Doré, Olle Ekwall | 2017-09-26 |
| 6232865 | Core for a controllable inductor and a method for producing therof | Gunnar Zinders, Tommy Holmgren, Stefan Valdemarsson, Dan Elofsson, Olle Ekwall | 2001-05-15 |
| 5936503 | Controllable inductor | Tommy Holmgren, Stefan Valdemarsson, Dan Elofsson | 1999-08-10 |
| 5929737 | Controllable inductor | Gunnar Zinders, Tommy Holmgren, Stefan Valdemarsson, Dan Elofsson | 1999-07-27 |
| 5371651 | Power semiconductor valve device for outdoor location | Gunnar Asplund, Urban Astrom | 1994-12-06 |