Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028405 | Process and apparatus for the burning off of carbon (SOOT) deposited on exhaust gas filters | Hans Erdmannsdoerfer, Rudi Numrich, 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 | Hans Erdmannsdoerfer, Rudi Numrich, Manfred Wagner | 1987-06-02 |
| 4516990 | Method of removing soot from exhaust gases | Hans Erdmannsdorfer, Manfred Wagner, Rudi Numrich | 1985-05-14 |
| 4436535 | Method and device for removing soot from exhaust gases | Hans Erdmannsdorfer, Manfred Wagner | 1984-03-13 |