Gerhard Knauf

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Duisburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Pipe with crack stopper feature, and process of protecting a pipe a...
- Patent number 6,435,218
- Issue date Aug 20, 2002
- Mannesmann AG
- Hans-Georg Hillenbrand
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Process and device for checking a hollow body section
- Patent number 6,161,425
- Issue date Dec 19, 2000
- Mannesmann AG
- Gerd Junker
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Pipe with crack stopper feature, and process of protecting a pipe a...
- Publication number 20010015234
- Publication date Aug 23, 2001
- Hans-Georg Hillenbrand
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...