Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392340 | Purification of crude isophoronediamine by partial condensation in series with total condensation | Anne Rittsteiger, Jan Caßens, Axel Hengstermann, Anja Müller, Alexander Martin Rüfer | 2019-08-27 |
| 9085506 | Process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine | Markus Galle, Gerda Grund, Axel Hengstermann, Michael D Hinton, Rolf-Burkhard Hirsch +11 more | 2015-07-21 |
| 8003826 | Method for production of trimethylhexamethylenediamine | Christian Lettmann, Gerda Grund, Juergen Lippe | 2011-08-23 |
| 6680414 | Process for the hydrogenation of hydroformylation mixtures | Bernhard Scholz, Alfred Kaizik, Dietmar Gubisch, Joachim Schuler, Walter Totsch +1 more | 2004-01-20 |