Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683178 | Preparation of cyclic lactams | Frank Ohlbach, Andreas Ansmann, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more | 2004-01-27 |
| 6677449 | Preparation of caprolactam | Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder, Frank Ohlbach | 2004-01-13 |
| 6673950 | Method for reacting an organic compound with a hydroperoxide | Joaquim Henrique Teles, Alwin Rehfinger, Norbert Rieber, Anne Wenzel, Andreas Walch +1 more | 2004-01-06 |
| 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 |
| 6479680 | Method for reacting an organic compound with a hydroperoxide | Wolfgang Harder, Peter Resch, Norbert Rieber, Wilhelm Ruppel, Joaquim Henrique Teles +3 more | 2002-11-12 |
| 6462220 | Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine | Hermann Luyken, Frank Ohlbach, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder +4 more | 2002-10-08 |
| 6359178 | Method for producing hexamethylene diamine | Rolf Fischer, Hermann Luyken, Frank Ohlbach, Johann-Peter Melder, Martin Merger +3 more | 2002-03-19 |
| 6357573 | Method and apparatus for separating and bringing together series of container bodies | Mathias Frei, Peter Schreiber, Peter Taiana | 2002-03-19 |
| 6348630 | Method for purifying hexamethylenediamine in mixtures of hexamethylenediamine and an unsaturated cyclic imine | Claudia Merk, Rolf Fischer, Guido Voit, Hermann Luyken | 2002-02-19 |
| 6346641 | Method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine | Hermann Luyken, Frank Ohlbach, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder +4 more | 2002-02-12 |
| 6297394 | Iron-based catalyst for hydrogenating alpha-, omega-dinitriles | Guido Voit, Rolf Fischer, Andreas Ansmann, Hermann Luyken, Martin Merger +2 more | 2001-10-02 |
| 6278023 | Method for producing aliphatic alpha-, omega-diamines | Guido Voit, Rolf Fischer, Andreas Ansmann, Hermann Luyken, Martin Merger +2 more | 2001-08-21 |
| 6265602 | Method for hydrogenating aliphatic alpha-, omega-dinitriles | Guido Voit, Frank Ohlbach, Hermann Luyken, Martin Merger, Alwin Rehfinger +2 more | 2001-07-24 |
| 6255521 | Method for producing aliphatic alpha, omega-amino nitriles | Guido Voit, Andreas Bohnsack, Rolf Fischer, Hermann Luyken, Martin Merger +1 more | 2001-07-03 |
| 6252115 | Method for separating an imine from a mixture containing an amine and an imine | Hermann Luyken, Alwin Rehfinger | 2001-06-26 |
| 6251229 | Process for the separation of 2-aminomethylcyclopentylamine from a mixture containing hexamethyldiamine and 2-aminomethylcyclopentylamine | Hermann Luyken, Alwin Rehfinger, Guido Voit, Rolf Fischer, Martin Merger +1 more | 2001-06-26 |
| 6227348 | Method and apparatus for separating and bringing together series of container bodies | Mathias Frei, Peter Schreiber, Peter Taiana | 2001-05-08 |
| 6207851 | Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine | Hermann Luyken, Guido Voit, Alwin Rehfinger, Rolf Fischer | 2001-03-27 |
| 6204408 | Method for separating 6-aminocapronitrile from mixtures containing 6-aminocapronitrile and an imine | Hermann Luyken, Alwin Rehfinger, Harald Rust | 2001-03-20 |
| 6147208 | Process for simultaneously preparing caprolactam and hexamethylene diamine | Gunther Achhammer, Rolf Fischer, Eberhard Fuchs, Hermann Luyken, Werner Schnurr +2 more | 2000-11-14 |
| 6147247 | Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine | Guido Voit, Klemens Flick, Hermann Luyken, Alwan Rehfinger | 2000-11-14 |
| 6139693 | Method for obtaining hexamethylene diamine from mixtures containing hexamethylene diamine | Rolf Fischer, Hermann Luyken, Alwin Rehfinger, Guido Voit | 2000-10-31 |
| 5859265 | Oxidation catalyst, its preparation and oxidation using the oxidation catalyst | Ulrich Müller, Peter Lingelbach, Wolfgang Harder, Karsten Eller, Veronika Kohl +3 more | 1999-01-12 |
| 5717090 | Simultaneous preparation of caprolactam and hexamethylenediamine | Hermann Luyken, Gunther Achhammer, Tom Witzel, Eberhard Fuchs, Rolf Fischer +1 more | 1998-02-10 |
| 5527966 | Preparation of triphenylphosphine | Dieter Hermeling, Peter Hammes, Randolf Hugo, Peter Lechtken, Hardo Siegel | 1996-06-18 |