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Chromone Derivatives
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Patent number 5,604,247
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Issue date Feb 18, 1997
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Ciba-Geigy Corporation
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Andreas Von Sprecher
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C07 - ORGANIC CHEMISTRY
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Quinoline compound
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Patent number 5,508,408
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Issue date Apr 16, 1996
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Ciba-Geigy Corporation
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Andreas von Sprecher
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C07 - ORGANIC CHEMISTRY
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.alpha.-Hydroxy thioethers
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Patent number 4,808,572
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Issue date Feb 28, 1989
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Ciba-Geigy Corporation
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Andreas Beck
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Aromatic thioethers
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Patent number 4,785,004
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Issue date Nov 15, 1988
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Ciba-Geigy Corporation
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Andreas Von Sprecher
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C07 - ORGANIC CHEMISTRY
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Aliphatic thioethers
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Patent number 4,649,215
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Issue date Mar 10, 1987
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Ciba-Geigy Corporation
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Andreas von Sprecher
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Benzophenones
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Patent number 4,523,030
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Issue date Jun 11, 1985
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Ciba-Geigy Corporation
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Georges Haas
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C07 - ORGANIC CHEMISTRY