Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691295 | Detergent compositions | Karl-Heinz Maurer, Winfried Pochandke, Beatrix Kottwitz, Jorg Poethkow, Albrecht Weiss +1 more | 1997-11-25 |
| 5646103 | Builder for detergents or cleaning compositions | Beatrix Kottwitz, Joerg Poethkow, Peter Krings | 1997-07-08 |