Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668657 | Pressure sensor | Norbert Schmidt | 2003-12-30 |
| 6578415 | Limit-level sensor and method of determining the undershooting or overshooting of an intended level of liquid in a container | Ralf Schimmel, Stefan Lipfert, Werner Wallrafen | 2003-06-17 |
| 6543283 | Sensor for determining the level and temperature of a liquid | Ralf Schimmel, Manfred Rother, Rudolf Stiller | 2003-04-08 |
| 6318332 | Method for monitoring adequate oil lubrication of an internal combustion engine and an internal combustion engine for carrying out the method | Eckhart Kern, Werner Wallrafen, Volker Wehrmeyer | 2001-11-20 |
| 6308564 | Method and apparatus for determining the quantity and quality of a fluid | Volker Wehrmeyer, Wolfgang Porth, Werner Wallrafen | 2001-10-30 |
| 6237411 | Limit-level sensor and method of determining the undershooting or overshooting of an intended level of liquid in a container | Ralf Schimmel, Stefan Lipfert, Werner Wallrafen | 2001-05-29 |
| 6151974 | Sensor, particularly temperature sensor, and injection molding apparatus for the manufacture of a sensor | Ralf Schimmel | 2000-11-28 |
| 4851772 | Magnet assembly for measurement of displacement | Franz Benda | 1989-07-25 |