Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8790675 | Biocide compositions comprising carbamates | Stéphanie Merlet, Helena Wiethoff | 2014-07-29 |
| 8629297 | Low-foaming surfactants | Helena Wiethoff | 2014-01-14 |
| 8586063 | Thickeners | Helena Wiethoff | 2013-11-19 |
| 8461213 | Thickeners based on polyurethane | Oliver Pietsch | 2013-06-11 |