Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8449244 | Method for operating a wind energy converter, control device for a wind energy converter, and wind energy converter | Martin Fischer, Robert Tratnig | 2013-05-28 |
| 8154143 | Wind energy converter comprising a superposition gear | Robert Tratnig | 2012-04-10 |
| 7993240 | Variable ratio gear | Robert Tratnig | 2011-08-09 |