Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5840111 | Nanodisperse titanium dioxide, process for the production thereof and use thereof | Kai Butje, Peter-Joachim Barenthien, Michael Bödiger, Heinrich Alberts | 1998-11-24 |
| 5174817 | Process for the calcination of filter cakes with high solids contents being partly pre-dried in a directly heated rotary kiln | Bernd Holle, Peter Beumer, Rolf Braun, Hilmar Rieck, Jurgen Kischkewitz | 1992-12-29 |
| 5094834 | Process for the production of TiO.sub.2 pigments | Gunter Lailach | 1992-03-10 |
| 4988495 | Process for the recorvery of sulphuric acid in the production of titanium dioxide | Eckhard Bayer, Wolfgang Muller, Gunter Lailach | 1991-01-29 |
| 4663131 | Process for the preparation of titanium dioxide | Rudolf Gerken, Gunter Lailach, Walter Gutsche, Wolfgang Muller | 1987-05-05 |