Udo Holtmann

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of red iron oxide pigment
- Patent number 11,104,807
- Issue date Aug 31, 2021
- LANXESS Deutschland GmbH
- Waldemar Czaplik
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing finely divided haematite and for producing iro...
- Patent number 9,428,402
- Issue date Aug 30, 2016
- LANXESS Deutschland GmbH
- Guido Ketteler
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Process for the preparation of pigment granules and the use thereof
- Patent number 7,837,785
- Issue date Nov 23, 2010
- LANXESS Deutschland GmbH
- Holger Friedrich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of mixed oxide powders for catalysts for...
- Patent number 5,723,404
- Issue date Mar 3, 1998
- Bayer Aktiengesellschaft
- Kai Butje
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION OF RED IRON OXIDE PIGMENT
- Publication number 20200299515
- Publication date Sep 24, 2020
- LANXESS Deutschland GmbH
- Waldemar CZAPLIK
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PRODUCING FINELY DIVIDED HAEMATITE AND FOR PRODUCING IRO...
- Publication number 20140205664
- Publication date Jul 24, 2014
- LANXESS Deutschland GmbH
- Guido Ketteler
- B82 - NANO-TECHNOLOGY
Information Patent Application
Process for the preparation of pigment granules and the use thereof
- Publication number 20080257213
- Publication date Oct 23, 2008
- LANXESS Deutschland GmbH
- Holger Friedrrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...