Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880564 | Antifoams for aqueous systems and their use | Heinz Abel, Hans-Ulrich Berendt | 1989-11-14 |
| 4844710 | Aqueous textile assistant of high storage stability and hard water resistance | Jorg Haase, Albert Stehlin | 1989-07-04 |