Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8662203 | Method and device for creating a deep borehole | Jürgen Binder, Martin Ruder, Michael Back | 2014-03-04 |
| 5184918 | Recoverable tunnelling machine | Martin Herrenknecht, Rainer Griesbaum | 1993-02-09 |