Stefan Wigger

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Clausthal-Zellerfeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hardening protection compositions for partial carburization of meta...
- Patent number 6,964,712
- Issue date Nov 15, 2005
- Durferrit GmbH
- Stefan Wigger
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Boronizing agent in paste form
- Patent number 6,503,344
- Issue date Jan 7, 2003
- Houghton Durferrit GmbH
- Ulrich Baudis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Boriding agent
- Patent number 6,245,162
- Issue date Jun 12, 2001
- Houghton Durferrit GmbH
- Ulrich Baudis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for the selective recovery of the salt constituents from us...
- Patent number 5,846,501
- Issue date Dec 8, 1998
- Durferrit GmbH Thermotechnik
- Matthias Kremer
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for recovering the salt constituents from hardening-shop sa...
- Patent number 5,769,906
- Issue date Jun 23, 1998
- Durferrit GmbH Thermotechnik
- Mattias Kremer
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Boronizing agent in paste form
- Publication number 20020036030
- Publication date Mar 28, 2002
- Ulrich Baudis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Hardening protection compositions for partial carburization of meta...
- Publication number 20020020471
- Publication date Feb 21, 2002
- Stefan Wigger
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...