Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5510667 | Spark plug with an electrode having a platinum-nickel fiber composite material | Werner Niessner, Heinz Ambacher, Friedrich Schneider | 1996-04-23 |
| 5500304 | Silver-nickel composite material for electrical contacts and electrodes | Werner Niessner, Heinz Ambacher, Friedrich Schneider | 1996-03-19 |
| 4795937 | Spark plug with combined surface and air spark paths | Eberhard P. Wagner, Rudolf Maly, Werner Niessner | 1989-01-03 |