Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057158 | Oscillation damping of a wind turbine | Marc Seidel, Dirk Steudel | 2011-11-15 |
| 7939955 | Method for operating a wind energy installation and a wind energy installation | Stefan Steiner | 2011-05-10 |