Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871808 | Binders water-dilutable by protonation with acid | Rolf Osterloh, Eberhard Schupp, Thomas Perner, Klaas Ahlers | 1989-10-03 |
| 4855394 | Reaction products and condensates based on substituted propyleneureas and their preparation | Ulrich Goeckel, Harro Petersen, Rolf Osterloh, Eberhard Schupp, Werner Loch | 1989-08-08 |