Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533030 | Heat transfer pipe with spiral internal ribs | Steffen Dittmann, Michael Schönherr | 2003-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533030 | Heat transfer pipe with spiral internal ribs | Steffen Dittmann, Michael Schönherr | 2003-03-18 |