Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833057 | Pure ethylene oxide distillation process | Bernd Bessling, Hans Hasse, Jürgen Plückhan, Thomas Mayer | 2004-12-21 |
| 6696603 | Method for cleaning off-gas flows | Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more | 2004-02-24 |