Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8252853 | Process for preparation of rubber mixtures containing silicon dioxide | Joachim Fröhlich, Werner Niedermeier, Ralph Hofmann, Uwe Schachtely | 2012-08-28 |
| 7842269 | Pyrogenically prepared silicon dioxide compacted to give crusts | Uwe Schachtely, Ralph Hofmann, Günter Stein, Roland Schaffer | 2010-11-30 |