Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9132963 | Multipart chain fixing device, trough element and parts for the same | Eugen Baier, Siegfried Schmidt, Uwe Tillessen, Jorg Wirtz, Bernhard Wleklinski | 2015-09-15 |
| 8794429 | Pan section | Siegfried Schmidt, Eugen Baier, Jorg Wirtz, Uwe Tillessen | 2014-08-05 |
| 8662287 | Scraper for scraper chain conveyors | Willi Klingbeil, Matthias Kohler, Uwe Tillessen, Jorg Wirtz, Elmar Wiejack-Symann | 2014-03-04 |
| 7350874 | Method and device for extracting extraction products in underground mining | Reinhold Brüggemann, Detlef Hahn, Jochen Hammel, Jorg Wirtz, Norbert Katthöfer +8 more | 2008-04-01 |
| 7325670 | Conveyor pan | Dirk Vorsteher, Gerhard Merten, Jorg Wirtz, Siegfried Schmidt, Martin Broszat +4 more | 2008-02-05 |
| 7032743 | Conveyor pan | Dirk Vorsteher, Gerhard Merten, Jorg Wirtz, Siefgried Schmidt, Martin Broszat +4 more | 2006-04-25 |
| 6966429 | Conveyor pan | Dirk Vorsteher, Gerhard Merten, Jorg Wirtz, Siefgried Schmidt, Martin Broszat +4 more | 2005-11-22 |
| 6896121 | Conveyor pan | Dirk Vorsteher, Gerhard Merten, Jorg Wirtz, Siefgried Schmidt, Martin Broszat +4 more | 2005-05-24 |
| 6872025 | Toggle retainer for toggle connections | Detlef Hahn, Gerhard Merten, Ingo Pruss, Siegfried Schmidt, Jorg Wirtz | 2005-03-29 |
| 5941154 | Guide shoe for a cutting machine | Gerhard Merten | 1999-08-24 |
| 5938000 | Conveyor chute for chain scraper conveyors, in particular for use in mining | Siegfried Schmidt, Theo Wieger | 1999-08-17 |
| 5931540 | Drive system having a pin drive chain for a cutting machine for underground mining | Gerhard Merten, Jorg Wirtz | 1999-08-03 |
| 5704267 | Guide shoe for a cutting machine especially for a drum or disk shearer | Gerhard Merten | 1998-01-06 |
| 5700061 | Guide and drive arrangement for the winning machines of mineral winning installations | Gerhard Merten | 1997-12-23 |
| 5601341 | Drive gear and guide arrangement for a mining machine, in particular a disk shearer | Gerhard Merten, Bernd Steinkuhl | 1997-02-11 |
| 5048792 | Mixing faucet rotary brake | — | 1991-09-17 |