Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48138 | Electrically regeneratable filter element | Osama Ibrahim, Klaus J. Peter, Willy Marrecau, Koen Wastijn | 2020-08-04 |
| 7267703 | Electrically regeneratable filter element | Willy Marrecau, Koen Wastijn | 2007-09-11 |
| 7001449 | Diesel exhaust filter system with electrical regeneration | Koen Wastijn, Willy Marrecau | 2006-02-21 |
| 6991672 | Filter element comprising pleated metal fiber fleece | Willy Marrecau, Koen Wastijn | 2006-01-31 |
| 6991673 | Filter element | Koen Wastijn, Willy Marrecau | 2006-01-31 |
| 6597561 | Electrical contact system | Willy Marrecau | 2003-07-22 |