Roland Stephan

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Riesa, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing metallic, non-rotationally symmetrical rings w...
- Patent number 6,936,119
- Issue date Aug 30, 2005
- Mannesmannrohren-Werke AG
- Wilfried Förster
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for the continuous, chipless separation of individual, id...
- Patent number 6,644,151
- Issue date Nov 11, 2003
- Mannesmann AG
- Wilfried Förster
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Parting tool
- Patent number 6,615,632
- Issue date Sep 9, 2003
- Mannesmann AG
- Roland Stephan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for continuous chipless separation of single identical rings...
- Patent number 6,536,314
- Issue date Mar 25, 2003
- Mannesmann AG
- Wilfried Forster
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing steel rolling bearing rings
- Patent number 6,502,486
- Issue date Jan 7, 2003
- Zannesmann AG
- Karl Tenbrack
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR MAKING METALLIC, NON-ROTATIONALLY SYMMETRI...
- Publication number 20080040922
- Publication date Feb 21, 2008
- MANNESMANNROHREN-WERKE AG
- Roland Stephan
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method and apparatus for making metallic, non-rotationally symmetri...
- Publication number 20050204556
- Publication date Sep 22, 2005
- MANNESMANNROHREN-WERKE AG
- Roland Stephan
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for producing metallic, non-rotationally symmetrical rings w...
- Publication number 20030164210
- Publication date Sep 4, 2003
- Wilfried Forster
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Apparatus for the continuous, chipless separation of individual, id...
- Publication number 20010022124
- Publication date Sep 20, 2001
- Wilfried Forster
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC