C07F 9/6561

Containing systems of two or more relevant hetero rings condensed among themselves

Official title: containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings

C07F9/6561 (Containing systems of two or more relevant hetero rings condensed among themselves) appears on 2,069 US grants and 2,136 published applications in this corpus.

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2,136
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5,882
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15 Sep 2026

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C07F 9/6561: granted patents and published applications per publication year
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1976270
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1978160
1979110
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1982120
1983260
1984210
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1986150
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1990160
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20024340
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20062579
20072453
20084054
20094079
20104961
20113664
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201585106
201675110
20179398
201865107
201993104
202080102
202160104
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202359132
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202568116
20264591

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