Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402524 | Data transfer system | Dieter Wurm, Elmar Koch | 2002-06-11 |
| 5833015 | Method and apparatus for sinking pipes or cables into a pilot borehole | Alfons Hesse, Joachim Schmidt, Dieter Wurm | 1998-11-10 |