Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851140 | Aqueous liquid fabric treatment preparation | Hans Nuesslein, Rolf Puchta, Eric Sung | 1989-07-25 |
| 4814095 | After-wash treatment preparation based on layer silicate | Rolf Puchta, Hans Nuesslein | 1989-03-21 |