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Herne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Multi-layer pipe and method for its manufacture
- Patent number 8,117,882
- Issue date Feb 21, 2012
- Bergrohr GmbH Siegen
- Bernd Berg
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Shaping machine for cylindrically bending a plate
- Patent number 5,115,658
- Issue date May 26, 1992
- Chr. Haeusler AG
- Wilhelm Kirchhoff
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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Patents Applicationslast 30 patents

Information Patent Application
PRODUCTION-OPTIMIZED PROCESS FOR PRODUCING A MULTILAYER PIPE
- Publication number 20110146366
- Publication date Jun 23, 2011
- Bergrohr GmbH Siegen
- Bernd Berg
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE
- Publication number 20090293981
- Publication date Dec 3, 2009
- Bergrohr GmbH Siegen
- Bernd Berg
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE
- Publication number 20090288467
- Publication date Nov 26, 2009
- Bergrohr GmbH Siegen
- Bernd Berg
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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Trademarklast 30 trademarks

Information Trademark
79037149 - BERG-LAY
- Serial number 79037149
- Registration number 3508828
- Filing date Oct 13, 2006
- Bergrohr GmbH Siegen
- 6 - Common metals and their alloys