Herbert Kunstmann

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Oxidation-stable iron oxide pigments, process for preparing them an...
- Patent number 7,410,536
- Issue date Aug 12, 2008
- LANXESS Deutschland GmbH
- Holger Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Reduction- and oxidation-stable iron oxide black pigments having hi...
- Patent number 7,235,127
- Issue date Jun 26, 2007
- LANXESS Deutschland GmbH
- Herbert Kunstmann
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Preparation and use of iron oxide black pigment granules
- Patent number 5,718,755
- Issue date Feb 17, 1998
- Bayer AG
- Berndt-Ullrich Kohler
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Clean color shade, yellow-tinged red iron oxide pigments, and a pro...
- Patent number 5,665,157
- Issue date Sep 9, 1997
- Bayer AG
- Wolfgang Oehlert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Boron-containing iron oxide pigments and a process for their prepar...
- Patent number 5,269,843
- Issue date Dec 14, 1993
- Bayer Aktiengesellschaft
- Herbert Kunstmann
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
PIGMENT GRANULES WHICH CONTAIN INORGANIC FILTER AIDS
- Publication number 20100154680
- Publication date Jun 24, 2010
- Lanxess Deutschland GmbH
- Holger Friedrich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Oxidation-stable iron oxide pigments, process for preparing them an...
- Publication number 20070266899
- Publication date Nov 22, 2007
- LANXESS Deutschland GmbH
- Holger Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Reduction- and oxidation-stable iron oxide black pigments having hi...
- Publication number 20060133991
- Publication date Jun 22, 2006
- Herbert Kunstmann
- C01 - INORGANIC CHEMISTRY