Winfried Braun

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Dusseldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Piercing mandrel having an improved service life for producing seam...
- Patent number 9,937,540
- Issue date Apr 10, 2018
- Vallourec Deutschland GmbH
- Winfried Braun
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing seamless hot-rolled pipes in continuous pipe r...
- Patent number 9,381,554
- Issue date Jul 5, 2016
- Vallourec Deutschland GmbH
- Rolf Kümmerling
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing seamless tubes by means of a three-roll bar ro...
- Patent number 9,056,341
- Issue date Jun 16, 2015
- V & M Deutschland GmbH
- Rolf Kümmerling
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Caliber contour in a rolling mill roller for tubes
- Patent number 6,065,320
- Issue date May 23, 2000
- Mannesmann AG
- Peter Thieven
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
PIERCING MANDREL HAVING AN IMPROVED SERVICE LIFE FOR PRODUCING SEAM...
- Publication number 20160346820
- Publication date Dec 1, 2016
- Winfried Braun
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR PRODUCING SEAMLESS HOT-ROLLED PIPES IN CONTINUOUS PIPE R...
- Publication number 20130333433
- Publication date Dec 19, 2013
- V & M DEUTSCHLAND GMBH
- Rolf Kümmerling
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR PRODUCING SEAMLESS TUBES BY MEANS OF A THREE-ROLL BAR RO...
- Publication number 20120125068
- Publication date May 24, 2012
- V & M DEUTSCHLAND GMBH
- Rolf Kümmerling
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...