Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8269050 | Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons | Jochen Praefke, Armin Matthias Rix, Silvia Santiago Fernandez, Matthias Groemping, Frank Hoeper +3 more | 2012-09-18 |
| 7932428 | Process for preparing 1-butene from technical mixtures of C4 hydrocarbons | Armin Matthias Rix, Jochen Praefke, Dirk Rottger, Franz Nierlich | 2011-04-26 |
| 7611683 | Apparatus and process for the continuous reaction of a liquid with a gas over a solid catalyst | Gerda Grund, Stefan Jelko, Wilfried Buschken | 2009-11-03 |
| 7473812 | Method for producing butene oligomers and tert-butyl ethers from C4 flows containing isobutene | Dieter Reusch, Andreas Beckmann, Dirk Roettger, Jochen Praefke | 2009-01-06 |
| 7439413 | Method for the production of isobutene from commericial methyl tert-butly ether | Rainer Malzkorn, Franz Nierlich, Axel Tuchlenski | 2008-10-21 |
| 7304188 | Preparation of highly pure methyl tert-butyl ether | Fritz Obenaus, Wilhelm Droste, Bernhard Scholz, Franz Nierlich, Rainer Malzkorn +3 more | 2007-12-04 |
| 7161053 | Oligomerization of isobutene in N-butenic hydrocarbon streams | Andreas Beckmann, Franz Nierlich, Wilfried Buschken, Lothar Kerker, Dietrich Maschmeyer +1 more | 2007-01-09 |
| 7002053 | Method for preparing high-purity diisobutene | Franz Nierlich, Lothar Kerker, Wilfried Buschken, Andreas Beckmann | 2006-02-21 |
| 5849971 | Process for cracking tertiary butyl alcohol in a reaction distillation column | Michael Sakuth | 1998-12-15 |