Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9878979 | Fine purification of isophoronenitrile by melt crystallization | Stephan Kohlstruk, Robert Jansen, Anja Mueller, Jan Cassens, Axel Hengstermann | 2018-01-30 |
| 9868699 | Process for removing cations from an isophoronenitrile product mixture | Stephan Kohlstruk, Robert Jansen, Andreas Merkel, Anja Mueller, Jan Cassens +1 more | 2018-01-16 |
| 9187412 | Process for preparing 3-cyano-3,5,5-trimethylcyclohexanone | Markus Schwarz, Andreas Merkel, Gerda Grund | 2015-11-17 |
| 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 |
| 9035102 | Hydrolysis of the residues obtained in the production of isophorone to recover isophorone and acetone | Stephan Kohlstruk, Robert Jansen, Matthias Orschel, Andreas Merkel, Michael Demming +5 more | 2015-05-19 |
| 8945891 | Fermentation process for production of acetone, butanol and ethanol using isophoron as absorbent | Gerda Grund, Franz Ulrich Becker, Patrick Stier | 2015-02-03 |
| 8889914 | Method for producing isophorone | Matthias Orschel, Robert Jansen, Martin Maier, Gerda Grund, Markus Schwarz +1 more | 2014-11-18 |
| 8884066 | Process for preparing isophorone in the presence of at least one defoamer in the wastewater column in the workup section | Matthias Orschel, Robert Jansen, Martin Maier, Markus Schwarz | 2014-11-11 |