Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11447682 | Water-soluble or water-swellable polymers as water loss reducers in cement slurries | Dirk Fischer, Christoph Kayser, Jürgen TONHAUSER, Michael Gayle Schafer | 2022-09-20 |
| 10836951 | Method for producing polymers on the basis of acryloyldimethyltaurate, neutral monomers, and monomers with carboxylate groups | Dirk Fischer, Christoph Kayser, Katharina Berz | 2020-11-17 |