Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645327 | Antilock control system | Armin Czinczel, Thomas Isella | 1997-07-08 |
| 5374822 | Optical transmitter for producing an optical signal indicative of temperature | Herbert Lang | 1994-12-20 |
| 4969353 | Spark plug with a pressure measuring device | — | 1990-11-13 |
| 4963112 | Method of production of a spark plug for internal combustion engines | Walter Benedikt, Karl-Hermann Friese, Werner Herden, Dietrich Schuldt | 1990-10-16 |
| 4958515 | Spark plug with a measurement device | Gerhard Bruggen, Winfried Keiper | 1990-09-25 |
| RE31392 | Arrangements for electronically determining and adjusting the ignition time of an internal combustion engine | Gunter Schirmer, Edwin Fauser | 1983-09-27 |
| 4380973 | Glow plug for diesel engines | — | 1983-04-26 |
| 4369748 | Optical engine knock sensing system | Ernst Linder, Helmut Maurer, Klaus Muller, Franz Rieger | 1983-01-25 |
| 4347113 | Oxygen content exhaust gas sensor, and method of its manufacture | Hermann Fischer, Karl-Hermann Friese, Hans-Ulrich Gruber, Wolfgang Heinemann, Gunter Knoll +5 more | 1982-08-31 |
| 4285307 | Method of preheating an internal combustion engine of the diesel, or similar, type | — | 1981-08-25 |
| 4252091 | Glow plug construction | — | 1981-02-24 |
| 4211204 | Glow plug arrangement | Jens Glauner, Gunther Kauhl, Hannes Pflug, Helmut Weyl | 1980-07-08 |
| 4200077 | Glow plug structure | Gunther Kauhl, Hannes Pflug | 1980-04-29 |
| 4187163 | Electrochemical exhaust gas oxygen sensor construction | Helmut Weyl | 1980-02-05 |