Membership
Tour
Register
Log in
Rolf Kummerling
Follow
Person
Essen, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Method for producing hot-rolled seamless pipes having thickened ends
Patent number
10,695,809
Issue date
Jun 30, 2020
Vallourec Deutschland GmbH
Rolf Kümmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Rolling rod as an inner tool in the production of seamless metal ho...
Patent number
10,239,102
Issue date
Mar 26, 2019
Vallourec Deutschland GmbH
Nils Schäfer
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Piercing mandrel having an improved service life for producing seam...
Patent number
9,937,540
Issue date
Apr 10, 2018
Vallourec Deutschland GmbH
Winfried Braun
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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 and device for the optimized circulation of rods in the prod...
Patent number
9,248,483
Issue date
Feb 2, 2016
Vallourec Deutschland GmbH
Rolf Kümmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for producing seamless tubes by means of a three-roll bar ro...
Patent number
9,056,341
Issue date
Jun 16, 2015
V & M Deutschland GmbH
Rolf Kümmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of making a seamless hollow body from steel
Patent number
8,316,680
Issue date
Nov 27, 2012
V & M 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
Method and device for producing a hollow body from solid round steel
Patent number
6,006,570
Issue date
Dec 28, 1999
Mannesmann AG
Rolf Kummerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of longitudinal rolling of seamless pipe
Patent number
5,357,773
Issue date
Oct 25, 1994
Mannesmann Aktiengesellschaft
Johann H. Rohde
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for manufacturing medium-walled and thin-walle...
Patent number
5,115,656
Issue date
May 26, 1992
Mannesmann Aktiengesellschaft
Rolf Kummerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Adjustable press tool
Patent number
4,408,477
Issue date
Oct 11, 1983
Mannesmann Aktiengesellschaft
Rolf Kummerling
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 Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING HOT-ROLLED SEAMLESS PIPES HAVING THICKENED ENDS
Publication number
20170216896
Publication date
Aug 3, 2017
VALLOUREC DEUTSCHLAND GMBH
Rolf Kümmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
PIERCING MANDREL HAVING AN IMPROVED SERVICE LIFE FOR PRODUCING SEAM...
Publication number
20160346820
Publication date
Dec 1, 2016
Winfried Braun
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
ROLLING ROD AS AN INNER TOOL IN THE PRODUCTION OF SEAMLESS METAL HO...
Publication number
20160325325
Publication date
Nov 10, 2016
VALLOUREC DEUTSCHLAND GMBH
Nils SCHAFER
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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 AND DEVICE FOR THE OPTIMIZED CIRCULATION OF RODS IN THE PROD...
Publication number
20120272704
Publication date
Nov 1, 2012
V & M DEUTSCHLAND GMBH
Rolf Kümmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
METHOD FOR PRODUCING SEAMLESS TUBES BY MEANS OF A THREE-ROLL BAR RO...
Publication number
20120125068
Publication date
May 24, 2012
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...
Information
Patent Application
Method Of Making A Seamless Hollow Body From Steel
Publication number
20090113970
Publication date
May 7, 2009
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...