Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6007707 | Process for the recovery of pure hydrocarbons from a hydrocarbon mixture | Stefan Donnermeyer, Jurgen Ludolph | 1999-12-28 |
| 5767332 | Process and apparatus for producing aromatic hydrocarbon composition | Uwe Ranke, Reiner Wieczorkowski, Thottakudi Ramanuja Narasimhan | 1998-06-16 |
| 5723026 | Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products | Martin Leisse, Uwe Ranke | 1998-03-03 |
| 5252200 | Method of separating an aromatic from a hydrocarbon mixture | Luzian Skatulla, Hans-Christoph Schneider | 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-Christoph Schneider | 1993-08-24 |
| 5234553 | Process for obtaining a pure hydrocarbon from a sump product of an extractive distillation | Martin Kaiping, Udo Klaumunzner, Hans-Christoph Schneider | 1993-08-10 |
| 5215629 | Method of separating aromatics from a hydrocarbon mixture having an aromatic content | Luzian Skatulla, Hans-Christoph Schneider | 1993-06-01 |
| 5180474 | Method of separation of aromates by extractive distillation | Luzian Skatulla, Hans-Christoph Schneider | 1993-01-19 |
| 5107055 | Method for simultaneous recovery of pure benzene and pure toluene | Udo Klaumunzner | 1992-04-21 |
| 5057190 | Stripping column installation for separating materials with high boiling point difference | Luzian Skatulla | 1991-10-15 |
| 4404344 | Preparing ethylene polymers using Ziegler catalyst comprising cyclodienyl compound of zirconium | Hansjorg Sinn, Walter Kaminsky, Rudiger Woldt | 1983-09-13 |