Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7681739 | Filter device | Norbert Lang, Ralf Wnuk | 2010-03-23 |
| 7210584 | Filter device, in particular for high-pressure applications in a molten polymer filtration | Ralf Wnuk, Thomas V. Schorn, Otto Sandmeyer, Norbert Lang | 2007-05-01 |
| 6604928 | Filtering device and spinning head | Ralf Wnuk, Norbert Lang, Markus Reichwein, Roland Nitschke, Jörg Alexander +1 more | 2003-08-12 |
| 6579348 | Method for producing a sealing connection | Martin Winter, Ralf Wnuk, Norbert Lang | 2003-06-17 |
| 6343697 | Filter device with filter disks | Norbert Lang, Heinrich Teckentrup | 2002-02-05 |
| 5736045 | Filter element with support body | Peter Bies, Artur Jung, Michael Sakranchinsky | 1998-04-07 |
| 5560824 | Filter device with closing arrangement and key opening connection | Norbert Sann | 1996-10-01 |