Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644912 | Gas friction pump | — | 2003-11-11 |
| 6638010 | Gas friction pump | Heinrich Lotz | 2003-10-28 |
| 6540475 | Gas friction pump | Peter Fahrenbach | 2003-04-01 |
| 6524060 | Gas friction pump | Heinrich Lotz | 2003-02-25 |