Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7119220 | Process for preparing dimethyl propanephosphonate | Jan-Gerd Hansel, Gert Jabs, Johannes Kaulen, Hans-Günter Fröhlen | 2006-10-10 |
| 6818794 | Extraction of ketazine solutions | Ottfried Schlak, Johannes Kaulen | 2004-11-16 |