Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333732 | Dyestuff preparations containing oxalkylates of modified natural rosin acids | Reinhold Deubel, Konrad Opitz, Hubert Kruse, Manfred Schneider | 1982-06-08 |
| 4312631 | Surface-active compounds based on natural rosin acids | Ulrich Cuntze | 1982-01-26 |