Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906462 | Gas discharge lamp with ignition assisting electrodes, especially for automobile headlights | — | 2005-06-14 |
| 6607288 | Motor vehicle headlight with high-pressure gas discharge lamp | Martin Frey | 2003-08-19 |
| 6445129 | Gas discharge lamp, in particular for motor-vehicle headlights | Hartmut Seiler, Thomas Wizemann, Wolfgang Pfaff, Wolfgang Schuetze, Bernd Mueller +1 more | 2002-09-03 |
| 5945787 | Power control of an AC-operated high-pressure gas discharge lamp, particularly for motor vehicles | Bernd Mueller | 1999-08-31 |
| 5903093 | Discharge lamp, in particular for vehicle illumination devices, with burner and discharge vessel | Hartmut Seiler, Bernhard Woerner, Ralf Kramp | 1999-05-11 |
| 5828174 | Ignition device for discharge lamp | Hartmut Seiler, Bernhard Woerner, Ralf Kramp, Martin Frey, Thomas Fabry | 1998-10-27 |
| 5397965 | Device for operating a gas discharge lamp | Ulrich Drews, Wolfgang Jacob | 1995-03-14 |
| 4250858 | Input-output unit for microprocessor controlled ignition or injection systems in internal combustion engines | Edmund Jeenicke, Winfried Klotzner, Clemens Meichle, Manfred Schenk | 1981-02-17 |
| 4248195 | Apparatus for controlling the duty factor of sequence of cyclically occurring pulses controlling flow through an impedance | — | 1981-02-03 |
| 4244339 | Method and system to control ignition timing of an internal combustion engine in dependence on an exhaust gas composition signal | — | 1981-01-13 |
| 4185603 | Supply voltage variation compensated ignition system for an internal combustion engine | Gerhard Sohner, Gerd Hohne, Peter Werner, Herman Roozenbeek | 1980-01-29 |