Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235089 | Filter insert | — | 2001-05-22 |
| 6090177 | Air filter element with a control tube and divided housing | Klaus Moessinger, Ulrich Wittel | 2000-07-18 |
| 5741421 | Filter device | Helmut Storz, Manfred Wagner | 1998-04-21 |
| 5736040 | Filter assembly including a reinforced radial seal | Rolf Duerrstein, Bruno M. Sommer, Helmut Storz | 1998-04-07 |
| 5707521 | Filter element having a nonwoven layer and a permeable shrink tube | Bruno M. Sommer | 1998-01-13 |
| 5693217 | Fluid circuit with a primary stream filter and a bypass stream centrifuge | Martin Schetter, Martin Weindorf | 1997-12-02 |
| 5661975 | Soot filtration device | Friedrich Abel | 1997-09-02 |
| 5071456 | Air filter with radially sealing filter insert | Walter Binder, Gerhard Henning, Bruno M. Sommer | 1991-12-10 |
| 5042249 | Soot filter for cleaning the exhaust from an internal combustion engine | — | 1991-08-27 |
| 5028405 | Process and apparatus for the burning off of carbon (SOOT) deposited on exhaust gas filters | Rudi Numrich, Gerd Weyh, Manfred Wagner, Fritz Zundel | 1991-07-02 |
| 4670233 | Method of removing soot which has been trapped in an exhaust gas filter of an internal combustion engine | Rudi Numrich, Manfred Wagner, Gerd Weyh | 1987-06-02 |