Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12221402 | Method for the production of ethyleneamines | Thomas Heidemann, Regine Helga Bebensee, Eva Koch, Johann-Peter Melder, Hermann Luyken +2 more | 2025-02-11 |
| 11214535 | Method for producing ethyleneamines | Regine Helga Bebensee, Thomas Heidemann, Eva Koch, Hermann Luyken, Johann-Peter Melder | 2022-01-04 |
| 11208373 | Method for the production of ethyleneamines | Thomas Heidemann, Eva Koch, Johann-Peter Melder, Hermann Luyken | 2021-12-28 |
| 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 |
| 9687838 | Process for the regeneration of a supported noble metal catalyst | Thomas Heidemann | 2017-06-27 |
| 9688606 | Process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid | Samuel Neto, Rüdiger Fritz, Renate Hempel, Holger Allardt, Yuan Shen Dai +5 more | 2017-06-27 |
| 9249083 | Process for scrubbing dinitrotoluene | Samuel Neto, Ruediger Fritz, Renate Hempel, Holger Allardt, Julia Leschinski +4 more | 2016-02-02 |