Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261031 | Conveyor pan | Christoph Pietrala, Eugen Baier | 2022-03-01 |
| 9988904 | Plow bit assembly | Gerhard Siepenkort, Klaus Duhnke, Susanne Wutzke, Diedrich Bettermann | 2018-06-05 |
| 9163501 | Guide piece for an extraction or coal plough | Gerhard Siepenkort, Norbert Hesse, Klaus Duhnke | 2015-10-20 |
| 9132963 | Multipart chain fixing device, trough element and parts for the same | Eugen Baier, Siegfried Schmidt, Frank Fischer, Jorg Wirtz, Bernhard Wleklinski | 2015-09-15 |
| 9096378 | Connecting device for a trough pan of extraction devices, trough pan and attachment therefor | Frank Schlüsener, Ingo Pruss, Bernhard Wleklinski | 2015-08-04 |
| 8794429 | Pan section | Frank Fischer, Siegfried Schmidt, Eugen Baier, Jorg Wirtz | 2014-08-05 |
| 8662287 | Scraper for scraper chain conveyors | Frank Fischer, Willi Klingbeil, Matthias Kohler, Jorg Wirtz, Elmar Wiejack-Symann | 2014-03-04 |
| 7503629 | Pick locking device including a clamp element and a retaining pin | Adam Klabisch, Gerhard Siepenkort, Klaus Duhnke, Norbert Hesse | 2009-03-17 |
| 7393061 | Coal plow cutter | Norbert Hesse, Adam Klabisch, Klaus Duhnke, Gerhard Siepenkort | 2008-07-01 |
| 7314253 | Plough for underground mining | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Adam Klabisch | 2008-01-01 |
| 7310897 | Bit holder for a ploughing bit and ploughing bit | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Adam Klabisch | 2007-12-25 |
| 7188441 | Plow guide for a chain-pulled plow | Gerhard Merten, Adam Klabisch, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort +1 more | 2007-03-13 |
| 7104392 | Toggle retainer for toggle connections and toggle pocket for toggle retainer | Adam Klabisch, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2006-09-12 |
| 7097256 | Mining machine with releasable guide piece and the guide piece for it | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Adam Klabisch | 2006-08-29 |
| 7073870 | Bit holder for a ploughing bit of a coal or extraction plough and ploughing bit | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Adam Klabisch | 2006-07-11 |
| 7070040 | Toggle and toggle connection assembly | Adam Klabisch, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2006-07-04 |
| 7055913 | Chain guide arrangement on a mining machine | Reiner Eickelmann, Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Adam Klabisch | 2006-06-06 |