C07C 43/20

Having an ether-oxygen atom bound to a carbon atom of a six-membered

Official title: having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring

C07C43/20 (Having an ether-oxygen atom bound to a carbon atom of a six-membered) appears on 2,268 US grants and 1,404 published applications in this corpus.

Search patents in C07C

Granted patents: 2,268
Published applications: 1,404
Assignees: 1,001
Inventors: 5,008
Latest grant: 6 Oct 2026

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C07C 43/20: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	20	0
1977	19	0
1978	22	0
1979	27	0
1980	29	0
1981	53	0
1982	47	0
1983	44	0
1984	39	0
1985	57	0
1986	49	0
1987	55	0
1988	46	0
1989	70	0
1990	57	0
1991	65	0
1992	69	0
1993	66	0
1994	59	0
1995	56	0
1996	60	0
1997	64	0
1998	57	0
1999	41	0
2000	43	0
2001	51	13
2002	33	33
2003	32	41
2004	24	65
2005	21	52
2006	29	44
2007	27	33
2008	25	48
2009	29	54
2010	31	60
2011	28	50
2012	33	38
2013	54	72
2014	44	63
2015	68	83
2016	66	96
2017	62	89
2018	67	60
2019	68	60
2020	56	60
2021	50	59
2022	27	52
2023	33	62
2024	35	47
2025	31	46
2026	30	24

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

Having an ether-oxygen atom bound to a carbon atom of a six-membered

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