Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7128092 | Separating arrangement for treatment of fluids | John Stark, Paul Werner Straub | 2006-10-31 |
| 7077207 | Double-cone device and pump | John Stark, Jörg Schār | 2006-07-18 |
| 6701960 | Double cone for generation of a pressure difference | John Stark, Paul Werner Straub | 2004-03-09 |