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Phenylene derivatives
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Patent number 6,011,033
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Issue date Jan 4, 2000
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Kowa Co., Ltd.
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Henk Timmerman
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C07 - ORGANIC CHEMISTRY
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Phenylene derivatives
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Patent number 5,885,987
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Issue date Mar 23, 1999
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Kowa Co., Ltd.
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Henk Timmerman
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C07 - ORGANIC CHEMISTRY
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Phenylene derivatives
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Patent number 5,756,518
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Issue date May 26, 1998
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Kowa Co., Ltd.
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Henk Timmerman
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C07 - ORGANIC CHEMISTRY
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Piperidine derivatives
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Patent number 5,714,501
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Issue date Feb 3, 1998
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Kowa Co., Ltd.
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Henk Timmerman
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C07 - ORGANIC CHEMISTRY