Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10508540 | Plow guide assembly for plow guides | Gerhard Siepenkort, Klaus Duhnke, Frank Reitenbach | 2019-12-17 |
| 9988904 | Plow bit assembly | Gerhard Siepenkort, Uwe Tillessen, Klaus Duhnke, Diedrich Bettermann | 2018-06-05 |