Gerd Homberg

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Mettmann, DE

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Patents Grantslast 30 patents

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 of manufacturing of high-strength seamless steel tubes
- Patent number 5,019,180
- Issue date May 28, 1991
- Mannesmann Aktiengesellschaft
- Ingo von Hagen
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

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
FORGING MANDREL FOR HOT-FORGING TUBULAR WORKPIECES OF METAL
- Publication number 20100251794
- Publication date Oct 7, 2010
- V & M DEUTSCHLAND GMBH
- Stefan Wiedenmaier
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...