Karl Ernst Friedrich

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Moers, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing a ring-pull top from a steel sheet provided wi...
- Patent number 9,623,473
- Issue date Apr 18, 2017
- Thyssenkrupp Rasselstein GmbH
- Karl Ernst Friedrich
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hot-rolled strip intended for the production of non-grain oriented...
- Patent number 7,658,807
- Issue date Feb 9, 2010
- Thyssenkrupp Steel AG
- Karl Ernst Friedrich
- C21 - METALLURGY OF IRON
Information Patent Grant
Non-grain oriented magnetic steel strip or magnetic steel sheet and...
- Patent number 7,501,028
- Issue date Mar 10, 2009
- ThyssenKrupp Stahl AG
- Brigitte Hammer
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing non-grain oriented electric sheet steel
- Patent number 6,773,514
- Issue date Aug 10, 2004
- Thyssen Krupp Stahl AG
- Rudolf Kawalla
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing non-grain-oriented magnetic steel sheet
- Patent number 6,767,412
- Issue date Jul 27, 2004
- ThyssenKrupp Stahl AG
- Karl Ernst Friedrich
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing non-grain-oriented electrical sheet
- Patent number 6,582,528
- Issue date Jun 24, 2003
- ThyssenKrupp Electrical Steel EBG GmbH
- Thomas Böhm
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING A RING-PULL TOP AND USE OF A STEEL SHEET PROVI...
- Publication number 20150258599
- Publication date Sep 17, 2015
- THYSSENKRUPP RASSELSTEIN GMBH
- Karl Ernst Friedrich
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR COATING A STEEL SHEET WITH A METAL LAYER
- Publication number 20140349135
- Publication date Nov 27, 2014
- THYSSENKRUPP RASSELSTEIN GMBH
- Helmut OBERHOFFER
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Non-grain oriented electrical steel strip or electrical steel sheet...
- Publication number 20050247373
- Publication date Nov 10, 2005
- Brigitte Hammer
- C21 - METALLURGY OF IRON
Information Patent Application
Hot-rolled steel strip provided for producing non grain-oriented el...
- Publication number 20050067053
- Publication date Mar 31, 2005
- Karl Ernst Friedrich
- C21 - METALLURGY OF IRON
Information Patent Application
Method for producing non-grain-oriented electric sheets
- Publication number 20030188805
- Publication date Oct 9, 2003
- Karl Ernst Friedrich
- C21 - METALLURGY OF IRON