Inventor
SCHULTEN GERD-HERMANN
DE4 patents
Patents
4 patentsUS4701221AOct 20, 1987
Process for the production of black pigments based on iron
BAYER AG31 citations89
US4911760AMar 27, 1990
Color pure iron oxide pigments, a process for their preparation
BAYER AG16 citations79
US4919727AApr 24, 1990
Oxidation resistant, heat resistant iron oxide black pigments, a process for their preparation and their use
BAYER AG8 citations71
US5049195ASep 17, 1991
Color pure iron oxide pigments, a process for their preparation and their use
BAYER AG4 citations60