Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10793494 | Method for separating materials by means of an extractive distillation process | — | 2020-10-06 |
| 10569192 | Distillation device comprising a column which as three or a plurality of cells in series through which fluid flows and method for distilling or extractive distillation by use of the distillation device | Bernd Heida, Jan-Oliver Weidert, Ortmund Lang | 2020-02-25 |