Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583286 | Method for hydrogenating unsaturated heterocyclic compounds | Arnd Bottcher, Melanie Brunner, Jochem Henkelmann, Boris Breitscheidel | 2003-06-24 |
| 6554966 | Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas | Andreas Kramer, Johann-Peter Melder, Günter Riewe, Wolfgang Siegel, Hans-Jurgen Weyer | 2003-04-29 |
| 6521767 | Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide | Arnd Bottcher, Jochem Henkelmann, Franz Josef Brocker, Gerd Kaibel | 2003-02-18 |