C07C 271/00

Derivatives of carbamic acids, i.e. compounds containing any of the groups [image

Official title: Derivatives of carbamic acids, i.e. compounds containing any of the groups [IMAGE cpc-sch-C07C-0964.gif], the nitrogen atom not being part of nitro or nitroso groups

C07C271/00 (Derivatives of carbamic acids, i.e. compounds containing any of the groups [image) appears on 4,063 US grants and 3,342 published applications in this corpus.

Search patents in C07C

Granted patents: 4,063
Published applications: 3,342
Assignees: 1,700
Inventors: 10,360
Latest grant: 1 Sep 2026

Filings by year

C07C 271/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	33	0
1977	30	0
1978	33	0
1979	30	0
1980	19	0
1981	24	0
1982	17	0
1983	11	0
1984	11	0
1985	22	0
1986	26	0
1987	17	0
1988	21	0
1989	32	0
1990	51	0
1991	67	0
1992	90	0
1993	82	0
1994	70	0
1995	116	0
1996	115	0
1997	153	0
1998	155	0
1999	143	0
2000	118	0
2001	121	23
2002	140	136
2003	128	180
2004	101	183
2005	74	131
2006	91	123
2007	81	118
2008	96	123
2009	77	148
2010	106	153
2011	87	135
2012	116	142
2013	103	151
2014	136	145
2015	122	152
2016	152	151
2017	137	155
2018	104	124
2019	116	138
2020	105	126
2021	73	104
2022	73	96
2023	67	115
2024	64	97
2025	76	120
2026	31	73

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

Derivatives of carbamic acids, i.e. compounds containing any of the groups [image

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