Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6579846 | Acylated polymeric polyamines | Günter Oetter, Kristin Tiefensee, Knut Oppenlander, Jürgen Decker, Michael Ehle | 2003-06-17 |
| 6509012 | Aqueous cationic tenside preparations, method for the production and use thereof | Peter Hossel, Walter Schunter, Friedrich Wirsing, Wolfgang Kasel, Knut Oppenlander | 2003-01-21 |