Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10404948 | Longwall face support in an underground mine | Sabine Bittner | 2019-09-03 |
| 8960807 | Hydraulic circuit for longwall mining | Wilfried Weigel, Gerhard Wülfing | 2015-02-24 |
| 8876218 | Hydraulic circuit for longwall support | Wilfried Weigel, Gerhard Wülfing | 2014-11-04 |
| 8567869 | Shield control device for carrying out the longwall function of a longwall unit in the longwall face working in a mine | Willi Kussel | 2013-10-29 |
| 8100707 | Plug contact pairing | Willi Kussel | 2012-01-24 |
| 7455368 | Control mechanism for the extension units in the longwall face of a mine | Willi Kussel | 2008-11-25 |