C07D 261/18

Carbon atoms having three bonds to hetero atoms, with at the most

Official title: Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen

C07D261/18 (Carbon atoms having three bonds to hetero atoms, with at the most) appears on 609 US grants and 598 published applications in this corpus.

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Granted patents
609
Published applications
598
Assignees
321
Inventors
1,999
Latest grant
13 Jan 2026

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C07D 261/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
1977100
1978100
197990
198060
198170
198260
198330
198430
198510
198640
198730
198860
198920
199040
199180
199220
1993120
199490
199570
1996100
199760
199890
1999120
2000130
2001232
20021615
2003926
20042038
20051433
20061927
20071728
20081632
20091228
20103038
20111723
20122429
20132830
20142622
20152625
20161821
20172329
20181723
20191818
20201520
20211422
20221220
20231410
2024720
2025812
202617

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