Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7088829 | Method and apparatus for producing sounds that depend on the operation of an internal combustion engine in the interior space of a motor vehicle | Bernhard Schick, Helmut Spannheimer, Bernd Lischo, Raymond Freymann | 2006-08-08 |