Cationic formazan dyes

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Patents Grantslast 30 patents

Information Patent Grant
Use of tetra-azapentamethine compounds as direct dyeing agents and...
- Patent number 7,399,320
- Issue date Jul 15, 2008
- L'Oreal
- Herve Burgaud
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Use of tetra-azapentamethine compounds as direct dyeing agents and...
- Patent number 7,311,736
- Issue date Dec 25, 2007
- L'Oreal
- Herve Burgaud
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3497493
- Patent number 3,497,493
- Issue date Feb 24, 1970
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3324104
- Patent number 3,324,104
- Issue date Jun 6, 1967
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3173905
- Patent number 3,173,905
- Issue date Mar 16, 1965
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...