Detlef Ramdohr

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process and device for producing pipes as per the UOE process
- Patent number 6,427,513
- Issue date Aug 6, 2002
- Mannesmann AG
- Johannes Gross-Weege
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process and device for producing pipes as per the UOE process
- Patent number 6,253,596
- Issue date Jul 3, 2001
- Mannesmann AG
- Johannes Gross-Weege
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Diagonal rolling of hollow stock
- Patent number 4,392,369
- Issue date Jul 12, 1983
- Mannesmann Aktiengesellschaft
- Detlef Ramdohr
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Process and device for producing pipes as per the UOE process
- Publication number 20010011470
- Publication date Aug 9, 2001
- Mannesmann AG
- Johannes Gross-Weege
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...