Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853146 | Thickening compositions and thickened aqueous acid solutions | Norbert Porta | 1989-08-01 |
| 4851138 | Fabric softening composition and detergent-composition comprising the same | Hans-Joachim Jaroschek, Hendrik van Brederode | 1989-07-25 |
| 4842771 | Thickened aqueous cleaning compositions | Norbert Porta | 1989-06-27 |