Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12383856 | Filter device and method of cleaning-off a filter element of a filter device | Walter Herding, Egid Koller, Dino Bethke, Stefan Hajek, Christoph Weih | 2025-08-12 |
| 11529576 | Filter element | Walter Herding, Martina Marx, Stefan Hajek | 2022-12-20 |
| 9517427 | Filter device and filter method | Stefan Hajek | 2016-12-13 |
| 8052878 | Filter element with coating for surface filtration | Stefan Hajek, Kurt Palz, Wolfgang Raabe, Reiner Thuerauf, Bernd Meindl | 2011-11-08 |
| 7485228 | Reactor and method for anaerobic wastewater treatment | Walter Herding, Kurt Palz, Rainer Thurauf, Stephan Prechtl, Rainer Scholz +3 more | 2009-02-03 |
| 7258784 | Solid liquid filtration apparatus and method | David E. O'Ryan, Thomas P. Tripepi, Frank Schimmelmann, Timothy Hanna | 2007-08-21 |
| 6183530 | Filter unit suitable for exchangeable insertion in the housing of a filter system | Hans-Joachim Adlhoch | 2001-02-06 |