Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441535 | Method and apparatus for driving at least one capacitive control element | Hellmut Freudenberg, Hartmut Gerken, Martin Hecker, Christian Hoffmann, Richard Pirkl | 2002-08-27 |