Christoph Prasser

Follow

Person

Essen, DE

People

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 making a seamless hot-finished steel pipe, and device for...
- Patent number 8,166,792
- Issue date May 1, 2012
- V & M Deutschland GmbH
- Christoph Prasser
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel reinforcement tube
- Patent number 5,256,219
- Issue date Oct 26, 1993
- Mannesmann Aktiengesellschaft
- Ingo von Hagen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of manufacturing plated hollow blocks
- Patent number 5,232,740
- Issue date Aug 3, 1993
- Mannesmannufer Aktiengesellschaft
- Ingo Von Hagen
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Information Patent Grant
Hardening a cylindrical hollow object preferably made of steel
- Patent number 4,900,376
- Issue date Feb 13, 1990
- Mannesmann AG
- 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
METHOD OF MAKING A SEAMLESS HOT-FINISHED STEEL PIPE, AND DEVICE FOR...
- Publication number 20090044883
- Publication date Feb 19, 2009
- V & M DEUTSCHLAND GMBH
- Christoph Prasser
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...