Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8277615 | Method for the distillative purification of slow-evaporating fluids | Gerhard Ruffert, Oliver Pfohl | 2012-10-02 |
| 7108770 | Process for the purification of toluene diisocyanate incorporating a dividing-wall distillation column for the final purification | Bill Brady, Berthold Keggenhoff, Kai Verkerk, Hans-Peter Schal | 2006-09-19 |