Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509247 | Vibration-damping inside roof construction | Thorsten Alts | 1996-04-23 |
| 5245141 | Sound-insulating and sound-damping composite structure | Thorsten Alts, Peter Ehrler | 1993-09-14 |