Issued Patents All Time
Showing 26–50 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6958111 | Dividing wall column | Harald Rust | 2005-10-25 |
| 6956141 | Method for preparing acetylene alcohols and their secondary products | Melanie Maas-Brunner, Jochem Henkelmann, Alois Kindler, Christian Knoll, Harald Rust +5 more | 2005-10-18 |
| 6921830 | Method for purifying an organic solvent for the purposes of absorption of maleic acid anhydride | Ralf-Thomas Rahn, Alexander Weck | 2005-07-26 |
| 6916964 | Selective hydrogenation of olefinically unsaturated carbonyl compounds | Hans-Georg Gobbel, Till Gerlach, Frank Funke, Klaus Ebel, Signe Unverricht | 2005-07-12 |
| 6846389 | Method for distillative separation of mixtures containing tetrahydrofuran, γ-butyrolactone and/or 1,4-butanediol | Alexander Weck, Ralf-Thomas Rahn | 2005-01-25 |
| 6831182 | Method for the hydrogenation of maleic anhydride and related compounds in two serial reaction zones | Holger Borchert, Stephan Schlitter, Rolf Fischer, Markus Rösch, Frank Stein +2 more | 2004-12-14 |
| 6784303 | Method for continuously acylating chromanol ester derivatives | Carsten Oost, Harald Laas, Peter D. Schmitt, Jens von Erden | 2004-08-31 |
| 6759560 | Method for producing alkali methylates | Josef Guth, Holger Friedrich, Hans-Josef Sterzel, Kirsten Burkart, Elke Hoffmann | 2004-07-06 |
| 6521767 | Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide | Arnd Bottcher, Jochem Henkelmann, Franz Josef Brocker, Heinz Rutter | 2003-02-18 |
| 6518441 | Method for oxidizing an organic compound containing at least one C-C double bond | Georg Heinrich Grosch, Ulrich Müller, Andreas Walch, Norbert Rieber, Martin Fischer +11 more | 2003-02-11 |
| 6518464 | Continuous process for the preparation of acetals | Jörg Therre, Werner Aquila, Günter Wegner, Hartwig Fuchs | 2003-02-11 |
| 6511053 | Packing for heat-exchange and mass-transfer columns | Achim Stammer, Manfred Stroezel | 2003-01-28 |
| 6433192 | Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone | Rolf Fischer, Rolf Pinkos, Ralf-Thomas Rahn | 2002-08-13 |
| 6427985 | Structured packing for heat exchange and mass transfer | Manfred Stroezel, Achim Stammer | 2002-08-06 |
| 6387222 | Continuous isolation of a high-melting material by distillation | Christian Tragut | 2002-05-14 |
| 6375920 | Process for the manufacture of hydrogen peroxide | Martin Fischer, Achim Stammer, Klemens Flick, Stefan Quaiser, Wolfgang Harder +1 more | 2002-04-23 |
| 6369277 | Selective liquid-phase hydrogenation of &agr;,&bgr;-unsaturated carbonyl compounds | Franz J. Broecker, Werner Aquila, Hartwig Fuchs, Guenter Wegner, Manfred Stroezel | 2002-04-09 |
| 6365790 | Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts | Klaus Reimer, Ulrich Kammel, Franz Josef Brocker, Andreas Ansmann, Heinz Etzrodt +4 more | 2002-04-02 |
| 6350924 | Method for producing 1,4-butanediol | Rolf Fischer, Rolf Pinkos, Ralf-Thomas Rahn | 2002-02-26 |
| 6329554 | Continuous preparation of unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Bernhard Bockstiegel +2 more | 2001-12-11 |
| 6307106 | Process for preparing unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Hagen Jaedicke | 2001-10-23 |
| 6303823 | Process for preparing ketones, in particular 6-methylheptan-2-one | Andreas Kramer, Christian Knoll, Johann-Peter Melder, Wolfgang Siegel | 2001-10-16 |
| 6300524 | Process for preparing higher unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Udo Rheude +3 more | 2001-10-09 |
| 6297415 | Catalytic distillation process | Franz Josef Brocker, Klemens Flick, Cristina Freire Erdbrugger, Gerald Meyer, Hans-Joachim Muller +2 more | 2001-10-02 |
| 6278031 | Catalyst and process for preparing 2-buten-1-ol compounds | Franz Josef Brocker, Werner Aquila, Klemens Flick, Ernst Langguth | 2001-08-21 |