Inventor
GANTER KARL-WERNER
DE5 patents
Patents
5 patentsUS4966641AOct 30, 1990
Color intensive iron oxide black pigments obtained by the nitrobenzene reduction process and a process for its preparation
BAYER AG19 citations79
US4911760AMar 27, 1990
Color pure iron oxide pigments, a process for their preparation
BAYER AG16 citations79
US4921542AMay 1, 1990
Finely divided iron oxide black pigments, a process for their preparation and their use
BAYER AG9 citations72
US5032180AJul 16, 1991
Process for the production of iron oxide yellow pigments
BAYER AG8 citations71
US5049195ASep 17, 1991
Color pure iron oxide pigments, a process for their preparation and their use
BAYER AG4 citations60