B01J 20/261

Obtained by reactions only involving carbon to carbon unsaturated bonds

Official title: {obtained by reactions only involving carbon to carbon unsaturated bonds (macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F)}

B01J20/261 (Obtained by reactions only involving carbon to carbon unsaturated bonds) appears on 1,177 US grants and 1,551 published applications in this corpus.

Search patents in B01J

Granted patents: 1,177
Published applications: 1,551
Assignees: 816
Inventors: 3,584
Latest grant: 6 Oct 2026

Filings by year

B01J 20/261: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	4	0
1977	1	0
1978	2	0
1979	7	0
1980	3	0
1981	3	0
1982	6	0
1983	5	0
1984	1	0
1985	6	0
1986	2	0
1987	6	0
1988	6	0
1989	10	0
1990	5	0
1991	8	0
1992	10	0
1993	7	0
1994	8	0
1995	10	0
1996	6	0
1997	10	0
1998	9	0
1999	8	0
2000	18	0
2001	14	6
2002	18	37
2003	21	34
2004	29	30
2005	23	50
2006	20	45
2007	22	33
2008	27	46
2009	17	45
2010	27	47
2011	27	39
2012	29	48
2013	40	63
2014	38	57
2015	41	63
2016	45	90
2017	55	79
2018	61	76
2019	61	77
2020	52	88
2021	63	88
2022	51	112
2023	48	96
2024	66	77
2025	68	74
2026	53	51

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

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