Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7543471 | Waste gas heat exchanger | Arndt Birkert, Knut Haarscheidt | 2009-06-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7543471 | Waste gas heat exchanger | Arndt Birkert, Knut Haarscheidt | 2009-06-09 |