Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699808 | High-solids SiO2 dispersions, process for producing them, and their use | Fritz Schwertfeger, Johann Weis, Peter Ritter, Achim Molter, Wolfgang Schweren +1 more | 2004-03-02 |
| 4902570 | Process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a positive chargeable controlling agent for toners | Mario Heinemann, Johann Bindl, Johann Doppelberger | 1990-02-20 |