Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10875827 | Process for preparing an isocyanate by partly adiabatic phosgenation of the corresponding amine | Thomas Knauf, Juergen Spriewald, Anke Hielscher, Dietmar Wastian, Christian Steffens | 2020-12-29 |
| 10576392 | Distillation column and use thereof for cleaning isocyanates | Friedhelm Steffens, Wilfried Hedderich, Jürgen Bausa, Franz Beggel | 2020-03-03 |