Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8764349 | Gob shield for shield support and method for the production thereof | — | 2014-07-01 |
| 8430604 | Shield support assembly for underground mining and supporting surface element therefor | — | 2013-04-30 |
| 8215876 | Shield cap for a shield-type mining support | Stefan Hengstler, Detlef Hahn, Sebastian Mundry, Detlev Lettau | 2012-07-10 |
| 7350875 | Underground mining machine | — | 2008-04-01 |