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Thomas Wendel
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Schwalbach, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Composition and method for the chromium-free pretreatment of alumin...
Patent number
11,686,000
Issue date
Jun 27, 2023
Chemetall GmbH
Heiko Hellmers
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for coating of metallic coil or sheets for producing hollow...
Patent number
7,947,333
Issue date
May 24, 2011
Chemetall GmbH
Mats Eriksson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for applying a phosphate covering and use of metal parts thu...
Patent number
7,208,053
Issue date
Apr 24, 2007
Chemetall GmbH
Hardy Wietzoreck
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Pretreatment of aluminum surfaces with chrome-free solutions
Patent number
6,562,148
Issue date
May 13, 2003
Chemetall GmbH
Thomas Wendel
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of applying phosphate coatings to metal surfaces
Patent number
5,904,786
Issue date
May 18, 1999
Metallgesellschaft Aktiengesellschaft
Thomas Wendel
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Process for the phosphatising treatment of steel strip or sheet gal...
Patent number
5,795,408
Issue date
Aug 18, 1998
Metallgesellschaft Aktiengesellschaft
Klaus Bittner
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Process for a passivating postrinsing of conversion layers
Patent number
5,294,266
Issue date
Mar 15, 1994
Metallgesellschaft Aktiengesellschaft
Dieter Hauffe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Patents Applications
last 30 patents
Information
Patent Application
PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM- AND MOLYBDENUM-CONTA...
Publication number
20240209513
Publication date
Jun 27, 2024
CHEMETALL GMBH
Norbert Maurus
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
COMPOSITION AND METHOD FOR THE CHROMIUM-FREE PRETREATMENT OF ALUMIN...
Publication number
20200063267
Publication date
Feb 27, 2020
CHEMETALL GMBH
Heiko Hellmers
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM-AND MOLYBDENUM-CONTAI...
Publication number
20180237919
Publication date
Aug 23, 2018
CHEMETALL GMBH
Norbert Maurus
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for coating of metallic coil or sheets for producing hollow...
Publication number
20070231496
Publication date
Oct 4, 2007
Mats Eriksson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for applying a phosphate covering and use of metal parts thu...
Publication number
20040231755
Publication date
Nov 25, 2004
Hardy Wietzoreck
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for coating metallic surfaces and use of the substrates coat...
Publication number
20040129346
Publication date
Jul 8, 2004
Thomas Kolberg
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...