Johann Riegl

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Freiburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing 3-hydroxypropionitrile
- Patent number 6,462,219
- Issue date Oct 8, 2002
- Roche Vitamins, Inc.
- Bruno Burdet
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxymethylation of tocopherols
- Patent number 5,892,058
- Issue date Apr 6, 1999
- Roche Vitamins Inc.
- Konrad Bruggemann
- C07 - ORGANIC CHEMISTRY