Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139275 | Shaft seal | Peter Ehrmann, Rolf Vogt | 1992-08-18 |
| 5044642 | Annular seal | Rolf Vogt, Karl-Heinz Spies | 1991-09-03 |
| 4948152 | Shaft seal | Karl-Heinz Spies, Rolf Vogt, Peter Freilaender, Toni Seethaler | 1990-08-14 |
| 4940248 | Seal for a magnetizable shaft | Karl-Heinz Spies, Rolf Vogt, Peter Freilaender, Toni Seethaler | 1990-07-10 |