Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9574962 | Hydraulic attachment | Oliver Preuss, Stefan Lohmann, Colin Dirr, Oleg Knjazev, Martina Jaekel +1 more | 2017-02-21 |
| 7779930 | Hydraulic impact hammer with overpressure and piston-overtravel protection | Stefan Lohmann, Karlheinz Fritz, Reiner Koch, Hendrik Moller, Uwe Autschbach | 2010-08-24 |
| 6648079 | Protective apparatus for preventing the infiltration of contaminants in a fluid-operated percussion device | Thomas Deimel, Heinz-Jurgen Prokop | 2003-11-18 |