Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8752906 | Mining plough for plough systems and plough system for inclined formation | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Diedrich Bettermann | 2014-06-17 |
| 8733536 | Transfer station | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Diedrich Bettermann | 2014-05-27 |
| 8714659 | Bit arrangement for a mining plough, and mining plough for plough systems | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Diedrich Bettermann | 2014-05-06 |
| 8632134 | Carriage for a recovery plough | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Diedrich Bettermann | 2014-01-21 |
| 8616656 | Ploughing device for mining and plough body for said device | Norbert Hesse, Gerhard Siepenkort | 2013-12-31 |
| 8544960 | Chain guide for a driving chain of a mining machine | Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke, Diedrich Bettermann | 2013-10-01 |
| 8459749 | Roof cutter holder adjustment device and securing element therefor | Gerhard Siepenkort, Klaus Duhnke, Norbert Hesse | 2013-06-11 |
| 8360912 | Chain drive or return arrangement and chain assembly and sprocket employed therein | Gerhard Merten | 2013-01-29 |
| 8276990 | Drive station for an underground plough system and method for repairing recovery ploughs | Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort, Diedrich Bettermann | 2012-10-02 |
| 8128176 | Device for determining the cutting horizon of a mining extraction system, and pan element therefor | Norbert Hesse, Klaus Duhnke, Diedrich Bettermann, Gerhard Siepenkort | 2012-03-06 |
| 8066112 | Connector device for trough pans on mining equipment trough pan and assembly component for the same | Gerhard Siepenkort, Klaus Duhnke, Norbert Hesse, Henrik Padberg | 2011-11-29 |
| 8038558 | Chain drive or return arrangement and chain assembly and sprocket employed therein | Gerhard Merten | 2011-10-18 |
| 7641286 | Plough guide for a chain-pulled plough | Gerhard Siepenkort, Norbert Hesse, Klaus Duhnke, Andre Göller | 2010-01-05 |
| 7600822 | Method for the mining of coal and coal planer installation | Gerhard Merten | 2009-10-13 |
| 7575284 | Mining plow | Diedrich Bettermann, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2009-08-18 |
| 7503629 | Pick locking device including a clamp element and a retaining pin | Gerhard Siepenkort, Klaus Duhnke, Norbert Hesse, Uwe Tillessen | 2009-03-17 |
| 7399039 | Baseplate plow guide section | Diedrich Bettermann, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2008-07-15 |
| 7393061 | Coal plow cutter | Norbert Hesse, Uwe Tillessen, Klaus Duhnke, Gerhard Siepenkort | 2008-07-01 |
| 7347501 | Plow baseplate | Diedrich Bettermann, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2008-03-25 |
| 7314253 | Plough for underground mining | Uwe Tillessen, Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke | 2008-01-01 |
| 7310897 | Bit holder for a ploughing bit and ploughing bit | Uwe Tillessen, Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke | 2007-12-25 |
| 7303352 | Connection device | Diedrich Bettermann, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort | 2007-12-04 |
| 7188441 | Plow guide for a chain-pulled plow | Gerhard Merten, Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort, Uwe Tillessen +1 more | 2007-03-13 |
| 7104392 | Toggle retainer for toggle connections and toggle pocket for toggle retainer | Klaus Duhnke, Norbert Hesse, Gerhard Siepenkort, Uwe Tillessen | 2006-09-12 |
| 7097256 | Mining machine with releasable guide piece and the guide piece for it | Uwe Tillessen, Norbert Hesse, Gerhard Siepenkort, Klaus Duhnke | 2006-08-29 |