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Arndt Birkert
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Bretzfeld, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Waste gas heat exchanger
Patent number
7,543,471
Issue date
Jun 9, 2009
Behr GmbH & Co.
Arndt Birkert
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Method and device using high interior pressure to reshape structura...
Patent number
7,028,520
Issue date
Apr 18, 2006
ThyssenKrupp Automotive AG
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Device for manufacturing a hollow body from two plates
Patent number
6,516,646
Issue date
Feb 11, 2003
DaimlerChrysler AG
Wilhelm Arns
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Process for manufacturing a hollow body from two plates
Patent number
6,301,765
Issue date
Oct 16, 2001
DaimlerChrysler AG
Wilhelm Arns
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Vehicle frame part in the shape of a hollow profile
Patent number
6,299,242
Issue date
Oct 9, 2001
DaimlerChrysler AG
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for producing secondary mold elements
Patent number
6,143,235
Issue date
Nov 7, 2000
DaimlerChrysler AG
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for manufacturing a hollow body from a tubular...
Patent number
6,112,567
Issue date
Sep 5, 2000
DaimlerChrysler AG
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for manufacturing a part in the shape of a hollow profile
Patent number
6,065,211
Issue date
May 23, 2000
DaimlerChrysler AG
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
SPRINGBACK COMPENSATION IN THE PRODUCTION OF FORMED SHEET-METAL PARTS
Publication number
20190291163
Publication date
Sep 26, 2019
Inigence GmbH
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Waste gas heat exchanger
Publication number
20060201653
Publication date
Sep 14, 2006
BEHR GmbH & CO.
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method and device using high interior pressure to reshape structura...
Publication number
20040194523
Publication date
Oct 7, 2004
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Waste gas heat exchanger
Publication number
20040182547
Publication date
Sep 23, 2004
Arndt Birkert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Device for manufacturing a hollow body from two plates
Publication number
20010027598
Publication date
Oct 11, 2001
DaimlerChrysler AG.
Wilhelm Arns
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...