Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013365 | Iron oxide black pigments, processes for their preparation and their use | Jakob Rademachers, Wilfried Burow, Kurt Schafer | 1991-05-07 |
| 5002609 | Iron oxide black pigment granules, processes for their preparation and their use | Jakob Rademachers, Klaus Gauler | 1991-03-26 |
| 4500350 | Disintegration of chromites | Johann-Nikolaus Meussdoerffer, Hans Niederprum, Hans-Georg Nieder-Vahrenholz | 1985-02-19 |