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Additives for lubricants
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Patent number 5,892,051
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Issue date Apr 6, 1999
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Ciba Specialty Chemicals Corporation
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Hermann O. Wirth
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C07 - ORGANIC CHEMISTRY
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Additives for lubricants
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Patent number 5,618,778
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Issue date Apr 8, 1997
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Ciba-Geigy Corporation
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Hermann O. Wirth
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C07 - ORGANIC CHEMISTRY
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Stabilized chlorine-containing polymers
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Patent number 5,283,273
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Issue date Feb 1, 1994
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Ciba-Geigy Corporation
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Hans J. Sander
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Stabilized chlorine-containing polymers
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Patent number 5,244,949
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Issue date Sep 14, 1993
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Ciba-Geigy Corporation
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Hermann O. Wirth
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Boric acid complexes
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Patent number 4,778,612
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Issue date Oct 18, 1988
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Ciba-Geigy Corporation
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Hermann O. Wirth
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C07 - ORGANIC CHEMISTRY