Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8114238 | Method of producing a tight joint between a multi-layer synthetic material and a filter medium | Josef Rohrmeier, Norbert Strassenberger, Dieter Amesoeder | 2012-02-14 |
| 7611559 | Filter element | Nikolaus Moser, Andreas Beck, Josef Rohrmeier, Markus Kolczyk, Michael Durst +3 more | 2009-11-03 |
| 6994768 | Cylindrical filter element | Guenter Jokschas, Helmut Luka, Norbert Strassenberger, Gerhard Vilsmaier | 2006-02-07 |
| 6615990 | Filter cartridge with center tube | Guenter Jokschas, Bruno M. Sommer | 2003-09-09 |