Issued Patents All Time
Showing 25 most recent of 99 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9802884 | Mixtures of MGDA enantiomers, and process for making such mixtures | Marta Reinoso Garcia, Markus Hartmann, Kati Schmidt, Matthias Rauls, Thomas Schmidt +2 more | 2017-10-31 |
| 9695121 | 2,6-bis-(aminomethyl)piperidine derivatives | Stephanie Jaegli, Thomas Schmidt, Alexander Panchenko, Kirsten Dahmen, Oliver Molt | 2017-07-04 |
| 9512061 | Process for the preparation of racemic alpha-amino acids | Roland Bou Chedid, Wolfgang Staffel, Markus Christian Biel, Johann-Peter Melder, Christian Gruenanger | 2016-12-06 |
| 9227915 | Process for the preparation of a crystalline L-MGDA trialkali metal salt | Maxim Weber, Gerold Braun, Arnulf Lauterbach | 2016-01-05 |
| 9062278 | Preparing ether carboxylates | Robert Baumann, Markus Christian Biel, Andreas Deckers, Frank Rittig, Wolfgang Staffel | 2015-06-23 |
| 8802894 | Process for the preparation of aqueous solutions of methylglycine-N,N-diacetic acid trialkali metal salts | Gerold Braun, Arnulf Lauterbach | 2014-08-12 |
| 8785685 | Process for preparing aminopolycarboxylates proceeding from amino acids | Robert Baumann, Markus Christian Biel, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer | 2014-07-22 |
| 8772527 | Process for isomerization of cis-2-pentenenitrile to 3-pentenenitriles | Rolf Fischer, Robert Baumann, Hermann Luyken | 2014-07-08 |
| 8609894 | Process for preparing aminopolycarboxylates | Robert Baumann, Markus Christian Biel, Axel Franzke, Friedhelm Teich, Paul Klingelhoefer +1 more | 2013-12-17 |
| 8586795 | Methyl-substituted teta compounds | Randolf Hugo, Johann-Peter Melder, Robert Baumann, Boris Buschhaus, Gordon Brasche +2 more | 2013-11-19 |
| 8586794 | 5-isopropyl-3-aminomethyl-2-methyl-1-amino-cyclohexane (carvone diamine), and method for the production thereof | Martin Ernst, Kathrin Wissel-Stoll, Oemer Uensal, Stephan Freyer, Ansgar Gereon Altenhoff +1 more | 2013-11-19 |
| 8455682 | Method for the production of aminodicarboxylic acid-N,N-diacetic acids | Armin Stamm, Friedrich Wirsing, Gerold Braun | 2013-06-04 |
| 8440852 | Method for producing tetraethylenepentamine | Kirsten Dahmen, Randolf Hugo, Thilo Hahn, Katrin Baumann, Johann-Peter Melder | 2013-05-14 |
| 8309759 | Preparing ether carboxylates | Robert Baumann, Markus Christian Biel, Andreas Deckers, Frank Rittig, Wolfgang Staffel | 2012-11-13 |
| 8299249 | Method for producing TETA by means of EDDN | Kirsten Dahmen, Katrin Baumann, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2012-10-30 |
| 8163951 | Method for producing quaternary ammonium compounds | Laszlo Szarvas, Klemens Massonne, Matthias Maase | 2012-04-24 |
| 8153845 | Method for producing aminonitriles | Kirsten Dahmen, Thilo Hahn, Randolf Hugo, Katrin Baumann, Johann-Peter Melder | 2012-04-10 |
| 7977434 | Polymeric hydrophobic aminonitrile quats used for bleach activation | Frank Dietsche | 2011-07-12 |
| 7960591 | Method for producing triethylenetetramine | Kirsten Dahmen, Randolf Hugo, Katrin Baumann, Thilo Hahn, Johann-Peter Melder | 2011-06-14 |
| 7960590 | Method for producing ethyleneamines from untreated AAN | Kirsten Dahmen, Randolf Hugo, Thilo Hahn, Katrin Baumann, Johann-Peter Melder | 2011-06-14 |
| 7915454 | Method for producing ethylenediamine | Kirsten Dahmen, Randolf Hugo, Thilo Hahn, Katrin Baumann, Johann-Peter Melder | 2011-03-29 |
| 7880035 | Method for producing ethyleneamines | Kirsten Dahmen, Thilo Hahn, Randolf Hugo, Katrin Baumann, Johann-Peter Melder | 2011-02-01 |
| 7880036 | Production method for ethyleneamine mixtures | Kirsten Dahmen, Katrin Baumann, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2011-02-01 |
| 7754911 | Method for isolating methyl glycine nitrile-N,N-diacetonitriles from an aqueous crude mixture | Bernd Judat, Matthias Rauls, Katrin Friese | 2010-07-13 |
| 7671234 | Method for producing methylglycine-N,N-diethanoic acid-trialkali metal salts with a low by-product content | Gerold Braun, Friedrich Wirsing, Armin Stamm, Kai-Uwe Baldenius | 2010-03-02 |