C07D 213/44

Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two

Official title: Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom

C07D213/44 (Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two) appears on 1,319 US grants and 964 published applications in this corpus.

Search patents in C07D

Granted patents: 1,319
Published applications: 964
Assignees: 705
Inventors: 3,847
Latest grant: 23 Jun 2026

Filings by year

C07D 213/44: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	29	0
1977	31	0
1978	29	0
1979	11	0
1980	21	0
1981	28	0
1982	30	0
1983	19	0
1984	22	0
1985	25	0
1986	14	0
1987	19	0
1988	24	0
1989	15	0
1990	21	0
1991	17	0
1992	23	0
1993	28	0
1994	19	0
1995	22	0
1996	31	0
1997	25	0
1998	28	0
1999	31	0
2000	21	0
2001	27	2
2002	45	30
2003	26	45
2004	22	51
2005	25	46
2006	24	48
2007	27	45
2008	28	39
2009	24	46
2010	28	49
2011	34	47
2012	28	40
2013	34	55
2014	51	71
2015	52	44
2016	33	46
2017	47	46
2018	28	33
2019	37	32
2020	33	33
2021	20	27
2022	24	20
2023	14	27
2024	8	17
2025	12	15
2026	5	10

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

Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two

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