Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10308858 | Biodegradable anti-accretion additive for water-based drilling fluids | Andrea Assmann, Roland Reichenbach-Klinke | 2019-06-04 |
| 9353007 | Dry mortar mixture | Michael Eberwein, Christian Trieflinger, Michael Schinabeck, Stefan Friedrich, Gregor Herth | 2016-05-31 |
| 9040609 | Powdered accelerator | Stefan Friedrich, Christoph Hesse | 2015-05-26 |