Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164659 | Piston rod seal | Jürgen Netzer, Bernd Stephan | 2000-12-26 |
| 5127497 | Lip seal ring with improved sealing bond | Horst F. Struckmeyer, Hartmut Treiber, Wilhelm Liethen | 1992-07-07 |