Jean-Erick Ancel

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Rouen, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of substituted phenols
- Patent number 5,744,617
- Issue date Apr 28, 1998
- Rhone-Poulenc Nutrition Animale
- Jean-Erick Ancel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of vitamin A and new intermediates
- Patent number 5,637,779
- Issue date Jun 10, 1997
- Rhone-Poulenc Nutrition Animale
- Jean-Erick Ancel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediates for preparing vitamins A and E and carotenoids
- Patent number 5,449,844
- Issue date Sep 12, 1995
- Rhone Poulenc Nutrition Animale
- Jean-Erick Ancel
- C07 - ORGANIC CHEMISTRY