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David Hoffman
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North Kingstown, RI, US
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last 30 patents
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Patent Grant
6,11-dihydrodibenz[b,e]oxepin-acetic acids and derivatives
Patent number
4,816,591
Issue date
Mar 28, 1989
American Hoechst Corporation
Grover C. Helsley
C07 - ORGANIC CHEMISTRY
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Patent Grant
6,11-dihydrodibenz[b,e]oxepin-acetic acids and derivatives
Patent number
4,585,788
Issue date
Apr 29, 1986
American Hoechst Corporation
Grover C. Helsley
C07 - ORGANIC CHEMISTRY