Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795755 | Method for operating a load-dependent power-generating system in a vehicle | Klaus Keilhofer | 2004-09-21 |
| 6205035 | Bidirectional DC/DC converter with a step-up mode in one direction and a step-down mode in the other direction | Ludwig Vollmer, Andreas Schell | 2001-03-20 |
| 5794732 | Apparatus and method for starting a fuel cell vehicle | Karl-Ernst Noreikat, Thomas Klaiber, Wolfram Fleck, Josef Sonntag, Gerald Hornburg +1 more | 1998-08-18 |
| 5780981 | Process for dynamically adjusting the power for a vehicle having a fuel cell | Josef Sonntag | 1998-07-14 |
| 5646852 | Method and device for vehicle fuel cell dynamic power control | Karl-Ernst Noreikat, Thomas Klaiber, Wolfram Fleck, Josef Sonntag, Gerald Hornburg +1 more | 1997-07-08 |
| 4454104 | Process for working up the residual gases obtained in the deposition of silicon and in the conversion of silicon tetrachloride | Rudolf Griesshammer, Franz Koppl, Friedrich Steudten | 1984-06-12 |
| 4311545 | Method for the deposition of pure semiconductor material | Erwin Bugl, Rudolf Griesshammer, Helmut Hamster, Franz Koppl | 1982-01-19 |