Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10882768 | Method for processing contaminated wastewater from the preparation of isophorone, isophoronenitrile and isophoronediamine | Manfred Kreczinski, Robert Jansen | 2021-01-05 |
| 10144662 | Method for processing contaminated wastewater from the preparation of isophorone, isophoronenitrile and isophoronediamine | Manfred Kreczinski, Robert Jansen | 2018-12-04 |
| 9994472 | Treatment of the wastewater from isophorone production comprising neutralization, filtration and a downstream chemical oxidation process and subsequent reduction | Yue Chang, Manfred Kreczinski, Martin Maier | 2018-06-12 |
| 6325946 | Process for treating waste water | Caspar-Heinrich Finkeldei, Andrea Preuss, Steffen Hasenzahl | 2001-12-04 |