Frank Barhold

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Quirmbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of regenerating a spent pickling solution
- Patent number 6,375,915
- Issue date Apr 23, 2002
- Keramchemie GmbH
- Frank Bärhold
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of producing a cold-rolled strip in one pass
- Patent number 5,759,307
- Issue date Jun 2, 1998
- Keramchemie GmbH
- Heinz Berger
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...