Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7780100 | Nozzle head | Alwin Goering | 2010-08-24 |
| 6913266 | Sealing device | Michael Jarchau, Burkhard Helmig | 2005-07-05 |
| 6840315 | Device for cleaning an inner pipe inserted into a gas or oil producing well | Michael Jarchau | 2005-01-11 |