Herbert Kallfass

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for preventing corrosion and the formation of scale in wate...
- Patent number 4,057,511
- Issue date Nov 8, 1977
- Bayer Aktiengesellschaft
- Gerhard Bohnsack
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for preventing corrosion in water-carrying systems
- Patent number 4,026,815
- Issue date May 31, 1977
- Bayer Aktiengesellschaft
- Herbert Kallfass
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for preventing corrosion and the formation of scale in wate...
- Patent number 3,933,427
- Issue date Jan 20, 1976
- Bayer Aktiengesellschaft
- Gerhard Bohnsack
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...