Dirk Riewert

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Hamburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for connecting a sheet metal component, such as a pipe, to a...
- Patent number 8,183,494
- Issue date May 22, 2012
- BorgWarner Inc.
- Wilfried Bien
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and device for production of a hollow section
- Patent number 7,343,678
- Issue date Mar 18, 2008
- Daimler AG
- Wilfried Bien
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method for Connecting a Sheet Metal Component, Such as a Pipe, to a...
- Publication number 20070289954
- Publication date Dec 20, 2007
- DaimlerChrysler AG,BorgWarner Turbo Systems AG
- Wilfried Bien
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Flange arrangement of an engine cylinder head and a method for prod...
- Publication number 20060279047
- Publication date Dec 14, 2006
- Wilfried Bien
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Exhaust system
- Publication number 20060013746
- Publication date Jan 19, 2006
- DaimlerChrysler AG
- Wilfried Bien
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Method and device for production of a hollow section
- Publication number 20050160600
- Publication date Jul 28, 2005
- Wilfried Bien
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for producing a branch pipe
- Publication number 20050028366
- Publication date Feb 10, 2005
- Wilfried Bien
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...