Rolf Naumann

Person

Krefeld, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Non-silking iron oxide yellow pigments with high color density
- Patent number 6,053,972
- Issue date Apr 25, 2000
- Bayer AG
- Ulrike Pitzer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Needle shaped alloy powders based on iron and their use
- Patent number 4,985,073
- Issue date Jan 15, 1991
- Bayer Aktiengesellschaft
- Rolf Naumann
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Stabilized magnetic pigments
- Patent number 4,689,086
- Issue date Aug 25, 1987
- Bayer Aktiengesellschaft
- Rolf Naumann
- G11 - INFORMATION STORAGE
Information Patent Grant
Color-intensive iron oxide black pigments and process for their pro...
- Patent number 4,631,089
- Issue date Dec 23, 1986
- Bayer Aktiengesellschaft
- Jakob Rademachers
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Preparation and use of iron magnetic pigments
- Patent number 4,631,090
- Issue date Dec 23, 1986
- Bayer Aktiengesellschaft
- Rolf Naumann
- G11 - INFORMATION STORAGE
Information Patent Grant
Agglomerated ferromagnetic iron particles
- Patent number 4,470,844
- Issue date Sep 11, 1984
- Bayer Aktiengesellschaft
- Jakob Rademachers
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetic metal and alloy pigments
- Patent number 4,325,739
- Issue date Apr 20, 1982
- Bayer Aktiengesellschaft
- Hans-Peter Biermann
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Ferromagnetic metal pigment essentially consisting of iron and a pr...
- Patent number 4,290,799
- Issue date Sep 22, 1981
- Bayer Aktiengesellschaft
- Gerhard Schroeder
- G11 - INFORMATION STORAGE

Rolf Naumann

Person

Patents Grantslast 30 patents

Non-silking iron oxide yellow pigments with high color density

Needle shaped alloy powders based on iron and their use

Stabilized magnetic pigments

Color-intensive iron oxide black pigments and process for their pro...

Preparation and use of iron magnetic pigments

Agglomerated ferromagnetic iron particles

Magnetic metal and alloy pigments

Ferromagnetic metal pigment essentially consisting of iron and a pr...