Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336025 | Composition containing colorants and esterified oxalkylates of aromatic hydroxy compounds | Manfred Schneider, Konrad Opitz | 1982-06-22 |
| 4333732 | Dyestuff preparations containing oxalkylates of modified natural rosin acids | Reinhold Deubel, Konrad Opitz, Manfred Schneider, Heinz Uhrig | 1982-06-08 |