Inventor
HUND FRANZ
28 patents
Patents
28 patentsUS3946103AMar 23, 1976
Production of precipitated red iron (III) oxide pigment relatively free of α-FEOOH
BAYER AG66 citations96
US4082905AApr 4, 1978
Production of iron oxide pigments with improved resistance to oxidation
BAYER AG59 citations93
US4404254ASep 13, 1983
Production of lamellar iron oxide pigments
BAYER AG34 citations92
US3931025AJan 6, 1976
Magnetic iron oxides with improved orientability and a process for their production
BAYER AG45 citations92
US4112063ASep 5, 1978
Continuous production of iron oxide hydroxide
BAYER AG21 citations82
US4400432AAug 23, 1983
Coating iron oxide particles for magnetic recording
BAYER AG20 citations81
US4290799ASep 22, 1981
Ferromagnetic metal pigment essentially consisting of iron and a process for its production
BAYER AG21 citations81
US4285726AAug 25, 1981
Active anti-corrosion pigments based on calcium oxide, aluminium oxide and iron oxide
BAYER AG24 citations81
US4156613AMay 29, 1979
Anti-corrosion pigments
BAYER AG29 citations81
US4090888AMay 23, 1978
Production of black iron oxide pigments
BAYER AG26 citations81
US3947502AMar 30, 1976
Production of finely divided acicular magnetic iron oxides
BAYER AG25 citations81
US4036662AJul 19, 1977
Metal additions to pigments of pseudobrookite-titanium dioxide structure
BAYER AG23 citations76
US4264462AApr 28, 1981
Stabilization of magnetite pigments with heterocyclic nitrogen compounds
BAYER AG9 citations74
US4369265AJan 18, 1983
Readily dispersible silicone-coated finely divided solids
BAYER AG7 citations73
US4323596AApr 6, 1982
Coating iron oxide particles for magnetic recording
BAYER AG11 citations73
US4153465AMay 8, 1979
CaZn2 (PO4)2 .2H2 O anticorrosion pigment
BAYER AG16 citations73
US4014710AMar 29, 1977
Magnetic pigments with improved orientability and a process for their production
BAYER AG10 citations73
US4589906AMay 20, 1986
Inorganic depot fertilizers
BAYER AG16 citations72
US4378252AMar 29, 1983
Magnetic separation to improve purity of iron oxide pigments
BAYER AG7 citations72
US4358431ANov 9, 1982
Production of magnetic iron oxides
BAYER AG7 citations72
US4234348ANov 18, 1980
Process for the production of iron oxide red pigments
BAYER AG15 citations72
US4211565AJul 8, 1980
Iron oxide-based anti-corrosion pigments
BAYER AG12 citations72
US4140539AFeb 20, 1979
Hydrothermal process for producing dense iron oxide pigments
BAYER AG10 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
US3974079AAug 10, 1976
Production of gamma iron oxide
BAYER AG18 citations70
US4140538AFeb 20, 1979
Iron oxide-based anti-corrosion pigments
BAYER AG5 citations61
US4084984AApr 18, 1978
Temperature-stable inorganic yellow pigments
BAYER AG4 citations56