Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9738756 | Method for producing highly viscous polyamides | Rüdiger Häffner, Achim Stammer, Angela Ulzhöfer | 2017-08-22 |
| 9428613 | Process for producing polyamide that is stable during processing | Shankara Narayanan Keelapandal Ramamoorthy, Faissal-Ali El-Toufaili, Achim Gerstlauer, Achim Stammer | 2016-08-30 |
| 8629237 | Simplified production of nylon-6 | Rüdiger Häffner, Faissal-Ali El-Toufaili, Achim Stammer, Angela Ulzhöfer, Jens Becker | 2014-01-14 |