Issued Patents All Time
Showing 25 most recent of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428383 | Gas-phase process for the conversion of glycolaldehyde with an aminating agent | Tatjana HUBER, Martin Ernst, Johann-Peter Melder, Stephanie Jaegli | 2025-09-30 |
| 12162842 | Conversion of glycolaldehyde with an aminating agent | Martin Ernst, Tatjana HUBER, Johann-Peter Melder, Stephanie Jaegli | 2024-12-10 |
| 11753364 | Method for producing C2-C4 mono alkanol amines using an acid cation exchanger as a catalyst | Christian Gruenanger, Gabriele Iffland, Zeljko Kotanjac, Hermann Luyken, Jian Yi +1 more | 2023-09-12 |
| 10995057 | Method for hydrogenating nitriles in the presence of a ruthenium catalyst carried on ZrO2 | Christian Eidamshaus, Johann-Peter Melder, Joerg Pastre, Regine Helga Bebensee, Stephanie Jaegli | 2021-05-04 |
| 10414716 | Process for preparing a polyetheramine | Christof Wilhelm Wigbers, Wolfgang Mägerlein, Johann-Peter Melder | 2019-09-17 |
| 9981904 | Process for preparing primary amines using an unsupported cobalt catalyst | Christof Wilhelm Wigbers, Wolfgang Maegerlein, Johann-Peter Melder, Thomas Heidemann, Bernd Stein | 2018-05-29 |
| 9914693 | Process for preparing EDA using SO2-free hydrocyanic acid | Hermann Luyken, Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka +4 more | 2018-03-13 |
| 9828329 | Method for the distillative purification of EDA | Hermann Luyken, Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka +4 more | 2017-11-28 |
| 9139511 | Process for hydrogenating nitriles | Christof Wilhelm Wigbers, Christoph Müller, Wolfgang Mägerlein, Petr Kubanek, Thomas Heidemann +2 more | 2015-09-22 |
| 8772548 | Reaction of glycolaldehyde with an aminating agent | Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Mirko Kreitschmann | 2014-07-08 |
| 8742174 | Method for preparing higher ethanolamines | Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Mirko Kreitschmann | 2014-06-03 |
| 8476463 | Process for separating off fumaric acid and other minor components during the production of maleic anhydride | Gunther Windecker, Jens Weiguny, Alexander Weck, Ellen Dahlhoff, Wolf-Steffen Weiβker +2 more | 2013-07-02 |
| 8247580 | Process for preparing ε-caprolactone | Rolf Pinkos, Gerd-Dieter Tebben, Tilman Sirch, Todd C. Spengeman, Stephanie A. Bejune +2 more | 2012-08-21 |
| 8217186 | Process for preparing epsilon-caprolactone | Rolf Pinkos, Gerd-Dieter Tebben, Daniel Breuninger, Tilman Sirch, Christophe Bauduin +1 more | 2012-07-10 |
| 8163139 | Process for the distillative separation of mixtures comprising monoethylene glycol and diethylentriamine | Karin Pickenäcker, Johann-Peter Melder, Bram Willem Hoffer, Gunther van Cauwenberge, Frank-Friedrich Pape | 2012-04-24 |
| 7951974 | Continuous methods and reacator used for the production of alkylamines | Marco Bosch, Roderich Röttger, Bernd Stein, Johann-Peter Melder, Theodor Weber | 2011-05-31 |
| 7754921 | Shaped body comprising an aluminosilicate and aluminium oxide and process for the continuous preparation of methylamines | Marco Bosch, Roderich Röttger, Jan Eberhardt, Manfred Julius, Karl-Heinz Roβ +1 more | 2010-07-13 |
| 7714169 | Continuous preparation of alkylamines | Marco Bosch, Roderich Röttger, Bernd Stein, Johann-Peter Melder, Theodor Weber | 2010-05-11 |
| 7700806 | Method for producing ethylene amines ethanol amines from monoethylene glycol (MEG) | Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Karin Pickenäcker, Frank-Friedrich Pape +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, Karin Pickenäcker, Frank-Friedrich Pape +1 more | 2009-12-22 |
| 7601875 | Method for producing ethyleneamines | Matthias Frauenkron, Holger Evers, Johann-Peter Melder, Roderich Röttger, Markus Siegert +2 more | 2009-10-13 |
| 7449609 | Method for production of 1,6-hexanediol with a purity in excess of 99.5% | Andrea Haunert, Rolf Pinkos, Tilman Sirch, Michael Koch, Gerd-Dieter Tebben | 2008-11-11 |
| 7435855 | Process for the continuous synthesis of methylamines | Marco Bosch, Jan Eberhardt, Roderich Röttger, Johann-Peter Melder | 2008-10-14 |
| 7393978 | Method for producing ethylene-amines | Matthias Frauenkron, Holger Evers, Johann-Peter Melder, Roderich Röttger, Markus Siegert +4 more | 2008-07-01 |
| 7329330 | Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone | Martin Gall, Gerd Kaibel, Harald Rust, Frank Stein | 2008-02-12 |