Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837403 | Novel polyalkylpiperidine derivatives having alkylene bridges, use thereof as stabilizers, and intermediates | Alexander Aumueller, Peter Neuman | 1989-06-06 |
| 4835273 | Glycoluril derivatives | Alexander Aumueller, Peter Neumann | 1989-05-30 |
| 4820757 | Polymers photostabilized by novel imidazole-2-carboxanilides | Peter Spang, Peter Neumann, Gerhard Wagenblast | 1989-04-11 |
| 4806580 | Stabilizer mixtures for plastics | Gustav Bock, Wilhelm Weber, Peter Lechtken | 1989-02-21 |