Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11183818 | Pre-chamber spark plug with orientated openings | Werner Niessner | 2021-11-23 |
| 10886710 | Pre-chamber spark plug for highly stressed mobile gasoline-driven engine applications | Werner Niessner | 2021-01-05 |