Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6124514 | Process for generating pure benzene from reformed gasoline | Gerd Emmrich, Helmut Gehrke, Bernhard Firnhaber | 2000-09-26 |
| 5252200 | Method of separating an aromatic from a hydrocarbon mixture | Luzian Skatulla, Hans-Jurgen Vollmer | 1993-10-12 |
| 5238540 | Method of obtaining a pure aromatic hydrocarbon from a sump product of an extractive distillation of a hydrocarbon mixture | Luzian Skatulla, Hans-Jurgen Vollmer | 1993-08-24 |
| 5234553 | Process for obtaining a pure hydrocarbon from a sump product of an extractive distillation | Martin Kaiping, Udo Klaumunzner, Hans-Jurgen Vollmer | 1993-08-10 |
| 5215629 | Method of separating aromatics from a hydrocarbon mixture having an aromatic content | Luzian Skatulla, Hans-Jurgen Vollmer | 1993-06-01 |
| 5180474 | Method of separation of aromates by extractive distillation | Luzian Skatulla, Hans-Jurgen Vollmer | 1993-01-19 |
| 5080761 | Method of optimizing the operation of a distillation column provided with a side heating device | Gerd Emmrich, Ulrich Rudel | 1992-01-14 |
| 5031754 | Method of working up an overhead product of an extractive distillation of a hydrocarbon mixture and apparatus for same | Gerd Emmrich, Ulrich Rudel | 1991-07-16 |
| 4586986 | Method of recovering pure aromatic substances | Gerhard Preusser, Martin Schulze, Gerd Emmrich | 1986-05-06 |