C07D 307/68

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

C07D307/68 (Carbon atoms having three bonds to hetero atoms with at the most) appears on 1,559 US grants and 1,384 published applications in this corpus.

Search patents in C07D

Granted patents: 1,559
Published applications: 1,384
Assignees: 718
Inventors: 4,410
Latest grant: 22 Sep 2026

Filings by year

C07D 307/68: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	22	0
1977	27	0
1978	34	0
1979	23	0
1980	29	0
1981	28	0
1982	26	0
1983	27	0
1984	28	0
1985	14	0
1986	19	0
1987	14	0
1988	12	0
1989	7	0
1990	21	0
1991	17	0
1992	20	0
1993	20	0
1994	14	0
1995	23	0
1996	23	0
1997	22	0
1998	23	0
1999	23	0
2000	22	0
2001	31	3
2002	28	30
2003	31	42
2004	25	78
2005	21	68
2006	31	53
2007	35	81
2008	48	67
2009	43	65
2010	51	79
2011	38	52
2012	50	59
2013	52	62
2014	71	66
2015	69	69
2016	59	57
2017	58	57
2018	44	55
2019	47	53
2020	43	65
2021	36	40
2022	22	33
2023	28	48
2024	17	43
2025	28	27
2026	15	32

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

Recent patents

Most cited

By later US patents