Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6064144 | Spark plug for an internal combustion engine and process for its manufacture | Harald Knoll, Erwin Schneck, Werner Niessner, Dirk Von Hacht | 2000-05-16 |
| 5510667 | Spark plug with an electrode having a platinum-nickel fiber composite material | Otto Loffler, Werner Niessner, Friedrich Schneider | 1996-04-23 |
| 5500304 | Silver-nickel composite material for electrical contacts and electrodes | Otto Loffler, Werner Niessner, Friedrich Schneider | 1996-03-19 |