Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540907 | Process for preparing high solids content titanium dioxide suspension with a dechlorinating agent | Siegfried Blumel, Achim Hartmann, Hans-Hermann Luginsland, Franz Rosendahl | 1996-07-30 |
| 5393510 | High solids content titanium dioxide suspension | Siegfried Blumel, Achim Hartmann, Hans-Hermann Luginsland, Franz Rosendahl | 1995-02-28 |
| 5334362 | Process for the production of disposable products from metal chlorides in a titanium dioxide chloride process | Dieter Schinkitz | 1994-08-02 |
| 4784841 | Process for the production of coarse, scrubbing aggregates of titanium dioxide particles by oxidation of titanium tetrachloride in the vapor phase and use of said aggregates for the prevention of deposit formation in the same production process | Achim Hartmann | 1988-11-15 |
| 4521384 | Process for the production of nearly aluminium chloride-free titanium tetrachloride from titaniferous raw materials containing aluminum compounds | Achim Hartmann | 1985-06-04 |
| 4184424 | Waste material testing apparatus | David M. Yeager | 1980-01-22 |