Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9644747 | Mechanical seal having a precisely positioned bandage | Rolf Johannes, Berthold Schulten, Ernst Pochmann | 2017-05-09 |
| 9234593 | Mechanical seal unit, particularly for a fire extinguishing pump | Thomas Holzapfel, Wolfgang Ries | 2016-01-12 |
| 8267406 | Retaining ring for a seal ring of a mechanical seal assembly | Wolfgang Ries, Robert Woppowa | 2012-09-18 |
| 8128096 | Mechanical seal assembly | Wolfgang Ries, Peter Kachler | 2012-03-06 |
| 6341781 | Sealing element for a face seal assembly | Berthold MATZ, Josef Nosowicz, Wolfgang Ries | 2002-01-29 |
| 6220601 | Mechanical face seal device | Thomas Keller, Ulrich Reinfrank, Wolfgang Ries, Robert Woppowa, Dieter Ziegenbein | 2001-04-24 |
| 5909878 | Mechanical face seal assembly | Andreas Schrufer, Walter Ittner, Andreas Schopf, Dieter Ziegenbein | 1999-06-08 |