Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10658818 | Combustion engine with pre-chamber spark plug | Werner Niessner | 2020-05-19 |
| 10598130 | Spark plug with supply passage for fuel, and a system with same | Werner Niessner, Andreas Zeh | 2020-03-24 |