B01J 31/2404

Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-p atom being a

Official title: {Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring}

B01J31/2404 (Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-p atom being a) appears on 1,714 US grants and 1,167 published applications in this corpus.

Search patents in B01J

Granted patents: 1,714
Published applications: 1,167
Assignees: 655
Inventors: 3,464
Latest grant: 15 Sep 2026

Filings by year

B01J 31/2404: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	38	0
1977	21	0
1978	22	0
1979	19	0
1980	27	0
1981	39	0
1982	31	0
1983	24	0
1984	25	0
1985	34	0
1986	15	0
1987	18	0
1988	10	0
1989	23	0
1990	21	0
1991	23	0
1992	33	0
1993	49	0
1994	29	0
1995	25	0
1996	27	0
1997	32	0
1998	49	0
1999	49	0
2000	50	0
2001	46	7
2002	33	35
2003	51	56
2004	42	56
2005	30	53
2006	30	40
2007	37	38
2008	19	30
2009	26	27
2010	35	34
2011	19	32
2012	17	26
2013	29	43
2014	34	47
2015	48	59
2016	48	65
2017	59	53
2018	41	54
2019	61	68
2020	56	38
2021	38	61
2022	35	61
2023	46	65
2024	43	53
2025	34	41
2026	24	25

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

Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-p atom being a

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