Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9831640 | Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith | Werner Niessner | 2017-11-28 |
| 9800023 | Spark plug | Werner Niessner | 2017-10-24 |
| 9698576 | Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith | Werner Niessner | 2017-07-04 |