Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9725326 | Hydrophilic silica as filler for silicone rubber formulations | Michael Kempf | 2017-08-08 |
| 9624318 | Matting agent for UV varnishes | Klaus Benner, Hans-Dieter Christian, Karl Meier | 2017-04-18 |
| 9139736 | Surface-modified silicic acid semi-gels | Hans-Dieter Christian | 2015-09-22 |
| 8864056 | Low-pressure milling process | Florian Paulat, Karl Meier | 2014-10-21 |
| 7871588 | Silica by precipitation at constant alkali number, and its use | Robert Kuhlmann, Claus-Peter Drexel | 2011-01-18 |
| 7097818 | Silica and silicate by precipitation at constant alkali number, and its use | Robert Kuhlmann, Claus-Peter Drexel | 2006-08-29 |
| 7070749 | Doped precipitated silica | Astrid Mueller | 2006-07-04 |