Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144275 | Positioning cylinder, especially for subterranean mining | Lothar Sebastian, Friedel Amling, Gerhard Hecken | 1992-09-01 |
| 5110187 | Apparatus for the mining of mineral matter, especially coal | Peter Heintzmann, Peter Walbrodt | 1992-05-05 |
| 5090775 | Method of monitoring and controlling mining operations | — | 1992-02-25 |
| 4905520 | Pressure sensor | Ernst G. Nehrlich | 1990-03-06 |
| 4900091 | Electrohydraulic coal-mining system | Gustav Neu, Ernst-Gunter Nerlich | 1990-02-13 |
| 4798417 | Method of separating the upper coal in seams | Gunter Blumenthal, Gustav Neu, Siegmar Block | 1989-01-17 |
| 4693640 | Method of controlling hydraulically actuatable arrangement in underground mining | — | 1987-09-15 |
| 4550717 | Throat examination device | — | 1985-11-05 |