Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543223 | Drive device | Kurt Stoll | 2003-04-08 |
| 5004015 | Directional control device | Reinhard Amrhein, Walter Heid | 1991-04-02 |
| 4832081 | Control valve | Reinhard Amrhein, Walter Heid | 1989-05-23 |
| 4722362 | Pilot operated 3/2 poppet valve | Manfred Hartwig | 1988-02-02 |