Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6848748 | Mining system with drilling, loading, conveyor, and support | Harry Martin | 2005-02-01 |
| 6715601 | Method for control of the chain drive mechanisms of underground working machines, especially chain scraper conveyors, and a chain scraper conveyor | Dirk Abel, Arno Breimhorst, Erwin Haese, Gerhard Merten, Peter Herkenrath +2 more | 2004-04-06 |
| 6672674 | Longwall mining with blasting | Harry Martin | 2004-01-06 |
| 5343130 | Control system for automatically halting the movement of a machine in the mine working | Gerhard Merten | 1994-08-30 |