Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11378078 | Eccentric screw pump with telescoping housing | Norman Dicks, Stefan Goethel, Marcel Griesdorn, Peter McGarian, Vsevolod Ryvkin | 2022-07-05 |
| 11326595 | Eccentric screw compressor with exposable rotor connector | — | 2022-05-10 |
| 10648337 | Eccentric screw pump | Marcel Griesdorn, Stefan Goethel | 2020-05-12 |
| 8764420 | Eccentric-screw pump with replaceable rotor and stator | Marcel Griesdorn, Vsevolod Ryvkin | 2014-07-01 |