Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465643 | Aminophosphonium compounds | Berthold Schiemenz, Thomas Wessel | 2002-10-15 |
| 6407029 | Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts | Berthold Schiemenz, Thomas Wessel, Andreas Beck, Walter Hahn | 2002-06-18 |
| 6362365 | Preparation of trifluorobenzoic acids | Andreas Maier | 2002-03-26 |
| 6348603 | Process for the preparation of isochroman-3-ones | Holger Geissler | 2002-02-19 |