Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10221626 | Top drive for a drill string | Achim Feldermann, Sebastian Leier, Thomas Dolls | 2019-03-05 |
| 9949680 | Drawworks | — | 2018-04-24 |
| 9540219 | Hoist | — | 2017-01-10 |
| 8920146 | Pump system | — | 2014-12-30 |
| 8186977 | Pumping system | — | 2012-05-29 |
| 7232113 | Draw works | Peter Heinrichs | 2007-06-19 |
| 6793203 | Hoisting gear | Peter Heinrichs | 2004-09-21 |