Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12116316 | Slag-containing polymer concrete and grouting mortar | Steffen Kelch, Thomas Moser, Ulf Velten, Fabio Würmli | 2024-10-15 |
| 12037288 | Polyurethane-based polymer concretes and grouting mortars | Steffen Kelch, Rui XU-RABL | 2024-07-16 |