Inventor
RAMBOLD WOLFGANG
DE8 patents
Patents
8 patentsUS4921542AMay 1, 1990
Finely divided iron oxide black pigments, a process for their preparation and their use
BAYER AG9 citations72
US4470844ASep 11, 1984
Agglomerated ferromagnetic iron particles
BAYER AG14 citations72
US4378252AMar 29, 1983
Magnetic separation to improve purity of iron oxide pigments
BAYER AG7 citations72
US4067747AJan 10, 1978
Production of improved chromium oxide green pigment
BAYER AG11 citations72
US4040860AAug 9, 1977
Chromium oxide pigment from sodium chromate dihydrate plus ammonium salt
BAYER AG9 citations72
US4443264AApr 17, 1984
Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production
BAYER AG10 citations71
US4492600AJan 8, 1985
Corrosion-inhibiting paints and lacquers
BAYER AG9 citations70
US4235862ANov 25, 1980
Production of low sulphur chromium (III) oxide
BAYER AG11 citations67