Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028378 | Electric motor for auxiliary systems of automotive vehicles | Werner Philipps | 2000-02-22 |
| 4734600 | Noise damped dynamo electric machine, especially vehicular type alternator | Gunther Bergan, Manfred Frister, Gerhard Henneberger, Stefan Renner | 1988-03-29 |
| 4361867 | Electrical connection system for rectifiers | Manfred Frister, Stefan Renner, Friedhelm Meyer | 1982-11-30 |
| 4305121 | Rectifier apparatus with improved heat sink and diode mounting | Stefan Renner | 1981-12-08 |