Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613174 | Process for the manufacture of an acoustically effective foil stack for a vehicle heat shield | Alexander Wildhaber | 2003-09-02 |
| 6555246 | Method of producing a sound-absorbent insulating element and insulating element produced according to this method | — | 2003-04-29 |