Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491853 | Storage-stable plastics additives | Günter Nowy, Gerhard Pfahler, Matthias Zäh | 2002-12-10 |
| 6225385 | Oligomeric stabilizer mixture | Thomas Stahrfeldt, Alexander Lichtblau, Gerhard Pfahler | 2001-05-01 |
| 5919933 | Light stabilizers based on sterically hindered amines | Matthias Zäh, Mathias Mehrer, Gerhard Pfahler, Thomas Stahrfeldt | 1999-07-06 |
| 5852159 | Plastic with reduced sulfur uptake rate | Matthias Zäh, Gerhard Pfahler, Klaus Keck-Antoine | 1998-12-22 |
| 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 |
| 5550234 | Polyalkylpiperidine compounds | Matthias Z ah | 1996-08-27 |
| 5550242 | Process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds | Matthias Z ah | 1996-08-27 |