Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6514387 | Rectifying column for extractive distillation of close-boiling or azeotropic boiling mixtures | Gerd Emmrich, Helmut Gehrke, Frank Klaus Ennenbach, Uwe Ranke | 2003-02-04 |