Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6581722 | Acoustic absorber and sound-absorption method | Reinhard Pongratz | 2003-06-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6581722 | Acoustic absorber and sound-absorption method | Reinhard Pongratz | 2003-06-24 |