Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10335776 | Manganese-containing diesel oxidation catalyst | Stanley A. Roth, Claudia Zabel, Susanne Stiebels, Andreas Sundermann, Olga Gerlach | 2019-07-02 |
| 10328388 | Diesel oxidation catalyst | Karifala Dumbuya, Claudia Zabel, Susanne Stiebels | 2019-06-25 |