Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5964693 | Continuous preparation of silica sols which contain large particles | Hans-Dieter Block, Hans-Heinrich Moretto, Peter C. Schmidt, Peter Schober, Werner Ludovici | 1999-10-12 |
| 5885485 | Process for producing low-salt silica sol dispersions in low-boiling alcohols | Bernd Rosenow, Hans-Dieter Block | 1999-03-23 |
| 5458812 | Process for the production and concentration of silica sols | Andreas Nickel, Hans-Dieter Block, Hans-Heinrich Moretto, Peter C. Schmidt, Peter Schober +1 more | 1995-10-17 |