Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9738756 | Method for producing highly viscous polyamides | Rolf-Egbert Grützner, Achim Stammer, Angela Ulzhöfer | 2017-08-22 |
| 8859721 | Process for working up particulate crude polyoxymethylene | Jürgen Deininger, Jürgen Demeter, Ralf Schulz, Achim Stammer | 2014-10-14 |
| 8629237 | Simplified production of nylon-6 | Faissal-Ali El-Toufaili, Achim Stammer, Rolf-Egbert Grützner, Angela Ulzhöfer, Jens Becker | 2014-01-14 |