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last 30 patents
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Patent Grant
Process for producing 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid
Patent number
6,452,046
Issue date
Sep 17, 2002
SDS Biotech K.K.
Utaro Matsushita
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for producing tetrafluorophthalic acid
Patent number
4,769,493
Issue date
Sep 6, 1988
SDS Biotech K.K.
Haruaki Ito
C07 - ORGANIC CHEMISTRY
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last 30 patents
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Patent Application
Process for producing 2, 3, 5, 6-tetrachloro-1, 4-benzenedicarboxyl...
Publication number
20010025121
Publication date
Sep 27, 2001
SDS Biotech K.K.
Utaro Matsushita
C07 - ORGANIC CHEMISTRY