Gerhard Hanika

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Lorrach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Oxazine dyes, their preparation and the use thereof
- Patent number 5,917,035
- Issue date Jun 29, 1999
- Ciba Specialty Chemicals Corporation
- Hanspeter Birri
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of highly concentrated solutions of cat...
- Patent number 5,284,939
- Issue date Feb 8, 1994
- Ciba-Geigy Corporation
- Alex Nicopoulos
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...