C07D 213/04

Having no bond between the ring nitrogen atom and a non-ring member

Official title: having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom

C07D213/04 (Having no bond between the ring nitrogen atom and a non-ring member) appears on 17,747 US grants and 14,759 published applications in this corpus.

Search patents in C07D

Granted patents: 17,747
Published applications: 14,759
Assignees: 4,653
Inventors: 38,021
Latest grant: 6 Oct 2026

Filings by year

C07D 213/04: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	246	0
1977	286	0
1978	273	0
1979	188	0
1980	235	0
1981	270	0
1982	232	0
1983	204	0
1984	208	0
1985	298	0
1986	239	0
1987	263	0
1988	263	0
1989	271	0
1990	309	0
1991	281	0
1992	307	0
1993	319	0
1994	279	0
1995	277	0
1996	287	0
1997	335	0
1998	346	0
1999	355	0
2000	347	0
2001	380	97
2002	463	428
2003	404	619
2004	355	753
2005	308	631
2006	382	612
2007	357	592
2008	325	587
2009	397	693
2010	431	766
2011	471	647
2012	503	627
2013	531	624
2014	593	744
2015	624	704
2016	549	651
2017	556	631
2018	488	562
2019	487	554
2020	437	550
2021	399	513
2022	328	496
2023	277	522
2024	274	493
2025	318	366
2026	192	297

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

Having no bond between the ring nitrogen atom and a non-ring member

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