Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921232 | Mine roof-support truss | Rudi Podjadtke, Franz-Josef Wunderlich | 2005-07-26 |
| 5564867 | Resilienty compressible support column for use in a mine | Rudi Podjadtke | 1996-10-15 |
| 5484130 | Support column for use in a mine | Rudi Podjadtke | 1996-01-16 |
| 5314161 | Mine prop | Rudi Podjadtke | 1994-05-24 |
| 4630973 | Peripherally flexible prop arch for mining tracks, tunnels or the like | Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes | 1986-12-23 |
| 4602896 | Clamping connection device for flanged through sections of support structures | Karlheinz Bohnes, Manfred Koppers, Werner Mennekes, Dieter Moebus, Rudolf Turowski | 1986-07-29 |
| 4465404 | Wall element for an underground gallery | Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes | 1984-08-14 |