Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10799810 | Cascade tray, rectifying column containing said cascade tray, method for operating such a rectifying column, and use of same | Bernd Pennemann | 2020-10-13 |
| 10576392 | Distillation column and use thereof for cleaning isocyanates | Friedhelm Steffens, Wilfried Hedderich, Franz Beggel, Volker Michele | 2020-03-03 |
| 10421836 | Process for purifying polycarbonate polyols and purifying apparatus therefor | Jörg Hofmann, Stefanie Braun, Kai Laemmerhold, Matthias Wohak, Cyrus Ahmadzade-Youssefi | 2019-09-24 |