Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7779984 | Arrangement for extracting extraction products in underground extraction operations in caving | Juan Delgado, Victor Raúl Encina Montenegro, Pablo Antonio Letelier Parga, Jaime Hernán Carreño Valdés, Fernando Arturo Geister Bühlmann +6 more | 2010-08-24 |
| 7350874 | Method and device for extracting extraction products in underground mining | Reinhold Brüggemann, Detlef Hahn, Frank Fischer, Jochen Hammel, Jorg Wirtz +8 more | 2008-04-01 |
| 6848748 | Mining system with drilling, loading, conveyor, and support | Ulrich Paschedag | 2005-02-01 |
| 6672674 | Longwall mining with blasting | Ulrich Paschedag | 2004-01-06 |
| 4202077 | Crab peeler | — | 1980-05-13 |