Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688759 | Nitrogen-free anionic conditioning formulations | Gunther Uphues, Bernd Wahle | 1997-11-18 |
| 5676955 | Local anesthetic | Achim Ansmann, Rolf Franke, Peter Schmersahl | 1997-10-14 |
| 5599476 | Detergent compositions | Brigitte Giesen, Hans-Christian Raths, Harald P. Wulff | 1997-02-04 |