Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10773190 | Fuel filter insert with a prefilter and a main filter element, and fuel filter | Lars Spelter, Idriss Razgani, Christoph Baumann, Christopher M. Mueller | 2020-09-15 |
| 10765977 | Fuel filter insert, and fuel filter comprising a prefilter element and a main filter element and comprising a water separating unit | Christoph Baumann, Lars Spelter, Idriss Razgani, Christopher M. Mueller | 2020-09-08 |
| 10668410 | Fuel filter comprising a fuel filter insert with a prefilter element and a main filter element | Lars Spelter, Idriss Razgani, Christoph Baumann, Christopher M. Mueller | 2020-06-02 |