Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885368 | Radical ion salts | Siegfried Huenig, Peter Erk | 1989-12-05 |
| 4837403 | Novel polyalkylpiperidine derivatives having alkylene bridges, use thereof as stabilizers, and intermediates | Peter Neuman, Hubert Trauth | 1989-06-06 |
| 4835273 | Glycoluril derivatives | Peter Neumann, Hubert Trauth | 1989-05-30 |