Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092660 | Cutter bit assemblies and arrangements for use with mining or tunnelling machines | Bernd Steinkuhl, Christoph Rassmann, Egon Pfefferle | 1992-03-03 |
| 4819990 | Floor cutters for mineral winning ploughs | Christoph Rassmann, Egon Pfefferle, Gunther-Dietmar Schoop | 1989-04-11 |
| 4762372 | Cutter-bit assemblies | Christoph Rassmann, Bernd Steinkuhl | 1988-08-09 |
| 4637658 | Cutters for use in mineral mining | Wolfgang Annipajo, Christoph Rassmann | 1987-01-20 |
| 4626034 | Cutter-bit assemblies | Bernd Steinkuhl, Franz Roling, Norbert Hesse, Christoph Rassmann, Gunther-Dietmar Schoop +1 more | 1986-12-02 |
| 4583785 | Mineral winning plough | Gerhard Merten, Bernd Steinkuhl, Christoph Rassmann | 1986-04-22 |
| 4557525 | Cutter bit assembly | Gerhard Merten, Norbert Hesse, Bernd Steinkuhl | 1985-12-10 |
| 4548444 | Mineral winning plough | Norbert Hesse, Bernd Steinkuhl | 1985-10-22 |
| 4458951 | Apparatus for controlling the position of a mineral mining machine | Gerhard Merten, Bernd Steinkuhl, Horst Schlusener | 1984-07-10 |
| 4456307 | Cutter bit assembly | Gerhard Merten, Norbert Hesse, Bernd Steinkuhl | 1984-06-26 |
| 4453771 | Mineral winning plough with sword plate formed of plural parts | Gerhard Merten, Bernd Steinkuhl | 1984-06-12 |
| 4403809 | Mineral winning plough | Alois Hauschopp, Bernd Steinkuhl | 1983-09-13 |
| 4376553 | Floor cutter bit | Gerhard Merten | 1983-03-15 |
| 4332421 | Coupling devices for connecting a mineral mining machine to a drive chain | Gerhard Merten, Bernd Steinkuhl | 1982-06-01 |
| 4275927 | Mineral mining plough with worm adjustable roof cutter | Gerhard Merten, Steinkuhl Bernd | 1981-06-30 |
| 4199194 | Control means for a coal plough | Bernd Steinkuhl | 1980-04-22 |