Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652313 | Two-stage process for the manufacture of thermoplastic polycarbonate | Steffen Kuhling, Gottfried Zaby, Claus Wulff | 1997-07-29 |
| 5652324 | Process for the production of thermoplastic polycarbonate | Steffen Kuhling, Thomas Fischer, Gottfried Zaby, Franz Ferdinand Rhiel | 1997-07-29 |
| 5648437 | Process for the manufacture of thermoplastic polycarbonate | Thomas Fischer, Rolf Bachmann, Franz Ferdinand Rhiel, Steffen Kuhling | 1997-07-15 |