Maurice R. J. Vallette

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Precy-sur-Oise, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for obtaining .alpha.,.alpha.'-dinitro anthraquinones of hi...
- Patent number 4,307,022
- Issue date Dec 22, 1981
- Produits Chimiques Ugine Kuhlmann
- Maurice R. J. Vallette
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for obtaining 1,5-dinitro-anthraquinone of high purity
- Patent number 4,307,021
- Issue date Dec 22, 1981
- Produits Chimiques Ugine Kuhlmann
- Maurice R. J. Vallette
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Indanthrene dyes
- Patent number 4,076,713
- Issue date Feb 28, 1978
- Produits Chimiques Ugine Kuhlmann
- Jean Claude Henri Raoul Hardouin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Anhydrous bases and salts of dyestuffs of the auramine series, proc...
- Patent number 3,960,952
- Issue date Jun 1, 1976
- Produits Chimiques Ugine Kuhlmann
- Jean-Claude Henri Raoul Hardouin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Concentrated solution of a phosphate of a dyestuff of the Auramine...
- Patent number 3,954,864
- Issue date May 4, 1976
- Produits Chimiques Ugine Kuhlmann
- Jean-Claude Henri Raoul Hardouin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...