Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7059828 | Gas friction pump | Armin Conrad | 2006-06-13 |
| 6991424 | Gas friction pump | Armin Conrad | 2006-01-31 |
| 6824357 | Turbomolecular pump | — | 2004-11-30 |
| 6561755 | Turbomolecular pump | Heinrich Lotz | 2003-05-13 |