Marquard Imfeld

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Oberwil, CH

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Patents Grantslast 30 patents

Information Patent Grant
Asymmetric hydrogenation process using ruthenium-diphosphine complexe
- Patent number 5,750,690
- Issue date May 12, 1998
- Hoffmann-La Roche Inc.
- Emil Albin Broger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroquinone derivatives useful in the production of vitamin E
- Patent number 4,689,427
- Issue date Aug 25, 1987
- Hoffmann-La Roche Inc.
- Marquard Imfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dicarbamates
- Patent number 4,565,869
- Issue date Jan 21, 1986
- Hoffmann-La Roche Inc.
- Marquard Imfeld
- C07 - ORGANIC CHEMISTRY