Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915717 | Impeller wheel for a ventilator | Michael Stephan, Volker Kress | 2014-12-23 |
| 6508622 | Axial fan with reversible flow direction | — | 2003-01-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915717 | Impeller wheel for a ventilator | Michael Stephan, Volker Kress | 2014-12-23 |
| 6508622 | Axial fan with reversible flow direction | — | 2003-01-21 |