Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7459148 | Cosmetic agent containing at least one copolymer having N-vinyllactam units | Son Nguyen-Kim, Peter Hoessel | 2008-12-02 |
| 6509012 | Aqueous cationic tenside preparations, method for the production and use thereof | Peter Hossel, Michael Zirnstein, Friedrich Wirsing, Wolfgang Kasel, Knut Oppenlander | 2003-01-21 |