Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6499440 | Fossil-fired steam generator | Joachim Franke | 2002-12-31 |
| 6446580 | Fossil fuel-fired continuous-flow steam generator | Joachim Franke, Eberhard Wittchow | 2002-09-10 |
| 6446584 | Fossil-fuel-fired steam generator | Joachim Franke | 2002-09-10 |