Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9759331 | Mechanical face seal with a rotating counter ring and precisely defined clamping | Martin Kirchhof, Armin Laxander, Thomas Keller | 2017-09-12 |
| 9086152 | Mechanical face seal | Martin Kirchhof, Armin Laxander, Thomas Keller | 2015-07-21 |
| 6517078 | Face seal device with additional mass for high rotational speeds | Andreas Schruefer, Werner Wolf, Peter Droescher, Josef Nosowicz, Georg Steigenberger | 2003-02-11 |