Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9982651 | Laser spark plug and cleaning method for same | Joerg Engelhardt, Martin Weinrotter | 2018-05-29 |
| 9954343 | Laser spark plug having an improved seal between the combustion chamber window and the casing | Joerg Engelhardt, Dieter Wolz, Juergen Raimann, Martin Weinrotter | 2018-04-24 |