Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633378 | Polyalkylpiperidine compounds | Matthias Z ah, Josef Wiedemann | 1997-05-27 |
| 5594142 | Process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds | G unter Nowy, Georg Schmailzl | 1997-01-14 |