Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541497 | Method for producing xylylenediamine (XDA) | Randolf Hugo, Sabine Jourdan, Thomas Preiss, Alexander Weck | 2009-06-02 |
| 7528284 | Method for producing xylylenediamine (XDA) | Randolf Hugo, Sabine Jourdan, Thomas Preiss, Alexander Weck | 2009-05-05 |
| 7381845 | Nitrile hydrogenation on heterogeneous catalysts in the presence of ionic liquids | Verena Weiskopf, Till Gerlach | 2008-06-03 |
| 7368610 | Preparation of xylylenediamine (XDA) | Randolf Hugo, Sabine Jourdan, Thomas Preiss, Alexander Weck | 2008-05-06 |
| 7339080 | Method for the production of diaminoxylene by continuous hydrogenation of liquid phthalonitrile | Randolf Hugo, Rolf Wambsganβ, Sabine Jourdan, Thomas Preiss | 2008-03-04 |
| 7323598 | Preparation of xylylenediamine (XDA) | Randolf Hugo, Sabine Jourdan, Thomas Preiss, Alexander Weck | 2008-01-29 |
| 7323597 | Method for the production of diaminoxylene by continuous hydrogenation of liquid phthalonitrile | Randolf Hugo, Sabine Jourdan, Thomas Preiss | 2008-01-29 |