Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371504 | Use of acrylate copolymers as soil antiredeposition agents and soil release agents in laundry processes | Menno Hazenkamp, Frank Oliver Heinrich Pirrung, Paula Barreleiro, Christa Junkes, Wolfgang von Rybinski | 2016-06-21 |
| 8674006 | Black pigment dispersion | Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas GERNANDT, Thomas Ruch +3 more | 2014-03-18 |