Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828398 | Device for inserting a pipe into an elongated cavity | Elmar Koch, Lucas Jostes, Stefan Hermes | 2023-11-28 |
| 11034014 | Long-shaft tool, system comprising a long-shaft tool with a first manipulator and a second manipulator as well as use for such a tool and such a system | Elmar Koch, Tobias Klein, Andreas Joachim Hanses | 2021-06-15 |
| 10662726 | Mixing system and method for producing a drilling fluid for ground drilling and use in producing a drilling fluid for ground drilling | Elmar Koch | 2020-05-26 |
| 10443311 | Top surface drilling device and methods for drilling a core in a top surface | Elmar Koch, Andreas Joachim Hanses, Sebastian Fischer | 2019-10-15 |
| 9951561 | Rod section and rod section system | Elmar Koch, Thomas Schauerte, Stefan Maschke | 2018-04-24 |
| 8882393 | Tool for longitudinally subdividing sewer pipes | Elmar Koch, Michael Heimes, Sebastian Schwarzer | 2014-11-11 |
| 8075224 | Method and device for reconstructing old underground pipes | Elmar Koch | 2011-12-13 |
| 7824130 | Apparatus and method for joining a pipe conduit to a drilling device, expanding device or pull-in device | Elmar Koch | 2010-11-02 |
| 7726028 | Cutting device for pipelines | Elmar Koch, Franz-Josef Puttmann | 2010-06-01 |