Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9240704 | Circuit for voltage stabilization in an onboard power supply | Michael Wortberg, Dieter Grohmann | 2016-01-19 |
| 7148453 | Control unit with thermal protection and an electrical heating device comprising the control unit | Franz Bohlender, Michael Zeyen, Michael Niederer | 2006-12-12 |
| 6919535 | Electric heating for motor vehicles | Michael Niederer, Marc Bernhardt, Franz Bohlender | 2005-07-19 |
| 6555788 | System for ignition and ion flow measurement and ion flow glow plugs for this system | — | 2003-04-29 |
| 6549013 | Ionic current measuring glow plug and process and circuit for its activation | — | 2003-04-15 |
| 6194999 | Device fitted on vehicles for monitoring tyre pressure | Norbert Normann, Gunter Schulze, Ralph Kessler, Michael Schrottle | 2001-02-27 |
| 6169480 | Device for measuring vehicle tire pressure | Norbert Normann, Gunter Schulze, Ralf Kessler | 2001-01-02 |
| 6150634 | Glow plug with electronic component for switching between heating and ion sensing functions | Michael Haussner, Heinz-Georg Schmitz | 2000-11-21 |
| 6124786 | Device for controlling the tire pressure of automobiles by means of a battery-powered circuit | Norbert Normann, Gunter Schulze | 2000-09-26 |
| 6112165 | Method of operating a device for monitoring vehicle-tire pressures and indicating changes in pressure by radio | Norbert Normann, Gunter Schulze, Ralf Kessler | 2000-08-29 |
| 5965808 | Method of operating tire pressure signalling devices on wheels fitted with pneumatic tires | Norbert Normann, Gunter Schulze | 1999-10-12 |
| 5821632 | Arrangement, in particular in vehicles, for transmitting electric signals by connecting lines | Norbert Normann, Lothar Schulze, Joachim Ney | 1998-10-13 |
| 5023467 | Method and an interval switch comprising a circuit arrangement for controlling the interval of time between wiping movements of wipers in vehicles | — | 1991-06-11 |