Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11165226 | Spark plug including a multi-step insulator seat | Matthias Herzberg | 2021-11-02 |
| 10916921 | Spark plug with improved tightness | Ugur Yilmaz | 2021-02-09 |
| 10886705 | Spark plug having a center electrode with improved thermal properties | Ugur Yilmaz, Helene Kasjanow, Hermann Kersting | 2021-01-05 |
| 10340665 | Spark plug having an increased tightening torque | Ba Thien Chuong Vo | 2019-07-02 |
| 9979161 | Spark plug having reduced wear of the center electrode and method of making such a spark plug | Nicolai Claus | 2018-05-22 |
| 7727016 | Plug having a matting seal | Mohamed Lamdiziz | 2010-06-01 |