Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |