Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491027 | Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine | Hellmut Freudenberg, Hartmut Gerken, Christian Hoffmann, Richard Pirkl | 2002-12-10 |
| 6472796 | Method and apparatus for controlling a capacitive actuator | Christian Hoffmann, Hellmut Freudenberg, Hartmut Gerken, Richard Pirkl | 2002-10-29 |
| 6441535 | Method and apparatus for driving at least one capacitive control element | Hellmut Freudenberg, Hartmut Gerken, Christian Hoffmann, Richard Pirkl, Gunther Riedel | 2002-08-27 |
| 6366868 | Method and configuration for diagnosis of a capacitive actuator | Hellmut Freudenberg, Hartmut Gerken, Christian Hoffmann, Richard Pirkl, Walter Schrod | 2002-04-02 |