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Benno Laubach
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Krefeld, DE
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Patents Grants
last 30 patents
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Patent Grant
Reducing agent for the soluble chromate content of cement and metho...
Patent number
8,808,451
Issue date
Aug 19, 2014
Crenox GmbH
Michael Vössing
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for processing iron-laden spent sulfuric acid
Patent number
7,537,749
Issue date
May 26, 2009
Tronox Pigments GmbH
Gerhard Auer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of finely divided ceramic oxide powders...
Patent number
5,108,732
Issue date
Apr 28, 1992
Bayer Aktiengesellschaft
Wolgang Krumbe
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Silicon nitride powders of low isoelectric point and processes for...
Patent number
5,066,473
Issue date
Nov 19, 1991
Bayer Aktiengesellschaft
Ulrike Pitzer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Silicon nitride powders with improved surface properties and proces...
Patent number
5,030,434
Issue date
Jul 9, 1991
Bayer Aktiengesellschaft
Ulrike Pitzer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Silicon nitride powder of low oxygen content
Patent number
4,983,371
Issue date
Jan 8, 1991
Bayer Aktiengesellschaft
Ulrike Pitzer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Sinterable SI.sub.3 N.sub.4 powders containing sintering additives...
Patent number
4,980,322
Issue date
Dec 25, 1990
Bayer Aktiengesellschaft
Ulrike Wickel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for the preparation of finely divided carbides and nitrides...
Patent number
4,948,762
Issue date
Aug 14, 1990
Bayer Aktiengesellschaft
Wolfgang Krumbe
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Sinterable Si.sub.3 N.sub.4 powder and a process for its preparation
Patent number
4,845,060
Issue date
Jul 4, 1989
Bayer Aktiengesellschaft
Ulrike Wickel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
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Patent Application
REDUCING AGENT FOR THE SOLUBLE CHROMATE CONTENT OF CEMENT AND METHO...
Publication number
20120137934
Publication date
Jun 7, 2012
Kerr-McGee Pigments GmbH
Michael Vossing
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for processing iron-laden spent sulfuric acid
Publication number
20070122336
Publication date
May 31, 2007
Tronax Pigments GMbH
Gerhard Auer
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Reducing agent for the soluble chromate content of cement and metho...
Publication number
20070039522
Publication date
Feb 22, 2007
Kerr-McGee Pigments GmbH
Michael Vossing
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...