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Richard Breitschuh
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Berlin, DE
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last 30 patents
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Patent Grant
Process for the preparation of substituted 3-aminobenzonitriles
Patent number
5,883,283
Issue date
Mar 16, 1999
Novartis Finance Corporation
Richard Breitschuh
C07 - ORGANIC CHEMISTRY
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Patent Grant
Preparation of aromatic nitriles
Patent number
5,763,638
Issue date
Jun 9, 1998
Ciba Specialty Chemicals Corporation
Richard Breitschuh
C07 - ORGANIC CHEMISTRY