Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267577 | Tube bundle device and use thereof | Wolfgang Gunkel, Klaus Fouquet | 2019-04-23 |
| 9345988 | Devices and method for continuous distillative separation of a mixture containing one or more alkanolamine(s) | Willi Schmidt, Gerd Kaibel, Elke Geiβler, Wolfgang Reif, Manfred Julius | 2016-05-24 |
| 9086191 | Method for safely preventing backflowing in the conveying of a fluid | Franz Borgel, Alfred Krause, Mirko Kreitschmann, Anton Meier, Wolfgang Reif +1 more | 2015-07-21 |
| 8791302 | Process for preparing an N,N-dialky-ethanolamine having high color stability | Johann-Peter Melder, Alfred Krause, Roland Bou Chedid, Martin Rudloff | 2014-07-29 |
| 8734617 | Process for preparing N,N-dimethylaminoethoxyethanol | Alfred Krause, Johann-Peter Melder, Bernd Stein, Joachim-Thierry Anders, Frank Haese | 2014-05-27 |
| 8674140 | Devices and method for continuous distillative separation of a mixture containing one or more alkanolamine(s) | Willi Schmidt, Gerd Kaibel, Elke Geiβbler, Wolfgang Reif, Manfred Julius | 2014-03-18 |
| 8536376 | Method for removing halogen from liquid ammonia | Roland Bou Chedid, Gabriele Iffland, Jurgen Ciprian, Johann-Peter Melder | 2013-09-17 |
| 8163139 | Process for the distillative separation of mixtures comprising monoethylene glycol and diethylentriamine | Karin Pickenäcker, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Gunther van Cauwenberge | 2012-04-24 |
| 7767855 | Method for the continuous production of an amine | Frank Haese, Joachim Wulff-Doering, Ulrich Koehler, Peter C. Gaa, Johann-Peter Melder +1 more | 2010-08-03 |
| 7700806 | Method for producing ethylene amines ethanol amines from monoethylene glycol (MEG) | Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Karin Pickenäcker +1 more | 2010-04-20 |
| 7635790 | Method for producing ethylene amines and ethanol amines by the hydrogenating amination of monoethylene glycol and ammonia in the presence of a catalyst | Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Karin Pickenäcker +1 more | 2009-12-22 |
| 6093677 | Catalyst for dehydrogenating 1,4-butanediol to .gamma.-butyrolactone | Hans Jochen Mercker, Joachim Simon, Andreas Henne, Michael Hesse, Ulrich Kohler +3 more | 2000-07-25 |
| 6037381 | Preparation of polytetrahydrofuran with terminal hydroxyl groups using ion exchangers | Wulfrich Friedemann Beer, Klaus Beiser, Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka +4 more | 2000-03-14 |
| 5955620 | Dehydrogenation of 1,4-butanediol to .gamma.-butyrolactone | Hans Jochen Mercker, Joachim Simon, Andreas Henne, Michael Hesse, Ulrich Kohler +3 more | 1999-09-21 |
| 5952262 | Preparation of aromatic or heteroaromatic nitriles | Lothar Karrer, Heinz-Josef Kneuper, Michael Hullmann | 1999-09-14 |
| 5747411 | Supported catalysts which are suitable for ammonoxidation | Lothar Karrer, Ulrich Kohler, Rainer Becker, Peter Weidlich, Michael Hullmann +1 more | 1998-05-05 |
| 5663438 | Preparation of cyclic amines | Ulrich Kohler, Matthias Irgang, Joachim Wulff-Doring, Michael Hesse, Peter Polanek | 1997-09-02 |
| 4996365 | Preparation of alkyl-substituted cinnamaldehydes | Gerald Lauterbach, Walter Gramlich | 1991-02-26 |
| 4665252 | Preparation of alkylbenzenes | Wolfgang Hoelderich, Rolf Fischer, Wolf D. Mross | 1987-05-12 |