C07D 309/08

With hetero atoms or with carbon atoms having three bonds to hetero

Official title: with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

C07D309/08 (With hetero atoms or with carbon atoms having three bonds to hetero) appears on 2,255 US grants and 1,597 published applications in this corpus.

Search patents in C07D

Granted patents: 2,255
Published applications: 1,597
Assignees: 856
Inventors: 5,580
Latest grant: 29 Sep 2026

Filings by year

C07D 309/08: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	85	0
1977	81	0
1978	169	0
1979	65	0
1980	66	0
1981	56	0
1982	47	0
1983	41	0
1984	41	0
1985	26	0
1986	22	0
1987	20	0
1988	20	0
1989	26	0
1990	26	0
1991	20	0
1992	25	0
1993	32	0
1994	36	0
1995	33	0
1996	27	0
1997	42	0
1998	33	0
1999	22	0
2000	24	0
2001	36	8
2002	44	38
2003	36	51
2004	35	67
2005	23	72
2006	25	55
2007	17	51
2008	36	49
2009	49	74
2010	42	57
2011	41	60
2012	38	62
2013	55	69
2014	55	94
2015	88	90
2016	64	89
2017	93	82
2018	48	65
2019	75	76
2020	49	72
2021	59	64
2022	37	55
2023	31	63
2024	35	61
2025	30	44
2026	29	29

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

With hetero atoms or with carbon atoms having three bonds to hetero

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