Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4371323 | Spiral rotation displacement machine with parallel motion devices ensuring relative torsional rigidity | Berthold Fischer, Hans-Peter Kabelitz | 1983-02-01 |
| 4300875 | Positive displacement machine with elastic suspension | Berthold Fischer, Hans-Peter Kabelitz, Hansen Pfaff | 1981-11-17 |