Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645842 | Cosmetic or pharmaceutical preparations | Burghard Gruning | 1997-07-08 |
| 5637746 | Process for preparing carboxyl-functional silanes and siloxanes | Arno Knebelkamp, Peter Lersch | 1997-06-10 |
| 5606077 | Method for the synthesis of organopolysiloxanes containing carbonate groups | Peter Lersch | 1997-02-25 |