Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795937 | Spark plug with combined surface and air spark paths | Rudolf Maly, Otto Loffler, Werner Niessner | 1989-01-03 |
| 4727891 | Ignition system | Albert L. Schmidt, Roland Gaisser, Dieter Teutsch, Hans Albrecht, Rudolf Maly | 1988-03-01 |