Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637700 | Purification of caprolactam | Hugo Fuchs, Gerald Neubauer | 1997-06-10 |
| 5536831 | Obtaining caprolactam by cleavage of molten polycaprolactam | Michael Kopietz, Alan Handerman, Simon Jones, Ulrich Kalck, Heinz Auer +3 more | 1996-07-16 |
| 5455346 | Obtaining caprolactam by cleavage of molten polycaprolactam | Michael Kopietz, Ulrich Kalck, Simon Jones, Peter Bassler | 1995-10-03 |
| 5434291 | Preparation of aminopropionitriles | Tom Witzel, Rudolf Kummer, Franz Merger, Guido Voit, Martin Brudermueller +1 more | 1995-07-18 |
| 5371292 | Preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine | Franz Merger, Tom Witzel, Gerhard Koppenhoefer, Wolfgang Harder | 1994-12-06 |
| 5360905 | Recovery of caprolactam from oligomers and/or polymers of caprolactam | Hugo Fuchs, Gerald Neubauer, Erwin Brunner, Josef Ritz, Michael Kopietz | 1994-11-01 |
| 5359062 | Recovery of caprolactam from polycaprolactam | Hugo Fuchs, Gerald Neubauer, Josef Ritz | 1994-10-25 |
| 5350847 | Purification of caprolactam | Hugo Fuchs, Gerald Neubauer | 1994-09-27 |
| 5344983 | Selective preparation of linear pentane-1,5-diamines in increased yields | Tom Witzel, Eberhard Fuchs, Franz Merger | 1994-09-06 |
| 5247120 | Preparation of aminopropionitriles | Franz Merger, Martin Brudermueller, Wolfgang Harder, Siegfried Winderl | 1993-09-21 |
| 5239120 | Preparation of 2-(3-aminopropyl)-cycloalkylamines | Franz Merger, Gerhard Koppenhoefer, Wolfgang Harder, Tom Witzel, Helmut Lermer +1 more | 1993-08-24 |
| 5194607 | Reactive dyes with a triphendioxazine chromophore | Manfred Patsch, Claus Marschner | 1993-03-16 |
| 5166443 | Preparation of 2,2-disubstituted pentane-1,5-diamines | Franz Merger, Tom Witzel, Gerhard Koppenhoefer, Ludwig Schuster | 1992-11-24 |
| 5068398 | Preparation of 6-aminocaproic esters | Franz Merger, Rolf Fischer, Wolfgang Harder, Uwe Vagt | 1991-11-26 |
| 4965362 | Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin | Franz Merger, Wolfgang Harder, Peter Hettinger, Dieter Franz, Dieter Voges | 1990-10-23 |
| 4963672 | Preparation of caprolactam | Franz Merger, Rolf Fischer, Wolfgang Harder, Uwe Vagt | 1990-10-16 |
| 4963673 | Preparation of caprolactam | Franz Merger, Rolf Fischer | 1990-10-16 |
| 4767856 | Preparation of caprolactam from 6-aminocaproic acid, esters and amides | Toni Dockner, Manfred Sauerwald, Rolf Fischer, Hans-Martin Hutmacher, Uwe Vagt | 1988-08-30 |
| 4767857 | Preparation of caprolactam | Franz Merger, Rolf Fischer, Manfred Sauerwald | 1988-08-30 |
| 4766237 | Preparation of 6-aminocaproates | Hans-Martin Hutmacher, Franz J. Broecker, Franz Merger, Rolf Fischer, Uwe Vagt +3 more | 1988-08-23 |
| 4731445 | Preparation of epsilon-caprolactam | Hans-Martin Hutmacher, Franz Merger, Franz J. Broecker, Rolf Fischer, Uwe Vagt +1 more | 1988-03-15 |
| 4730041 | Preparation of .epsilon.-caprolactams | Hans-Martin Hutmacher, Franz Merger, Franz J. Broecker, Rolf Fischer, Uwe Vagt +3 more | 1988-03-08 |