Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7779984 | Arrangement for extracting extraction products in underground extraction operations in caving | Harry Martin, Juan Delgado, Victor Raúl Encina Montenegro, Pablo Antonio Letelier Parga, Jaime Hernán Carreño Valdés +6 more | 2010-08-24 |
| 7604113 | Chain wheel arrangement | Andreas Pluszynski, Karl-Heinz Schurer | 2009-10-20 |
| 7562764 | Entry conveyor and pan section for the same | Gerhard Merten, Hans Meya, Jorg Wirtz, Ingo Pruss, Karl-Heinz Schurer +1 more | 2009-07-21 |
| 7350874 | Method and device for extracting extraction products in underground mining | Detlef Hahn, Frank Fischer, Jochen Hammel, Jorg Wirtz, Norbert Katthöfer +8 more | 2008-04-01 |
| 5658085 | Toggle securing device for toggle joints in chain conveyors and the like | Gerhard Merten, Siegfried Schmidt | 1997-08-19 |
| 4673079 | Transfer station | Dieter Grundken | 1987-06-16 |