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C09K 19/3048

In which at least two rings are linked by a carbon chain

Official title: {in which at least two rings are linked by a carbon chain containing carbon to carbon double bonds}

C09K19/3048 (In which at least two rings are linked by a carbon chain) appears on 139 US grants and 132 published applications in this corpus.

Search patents in C09K

Granted patents: 139
Published applications: 132
Assignees: 27
Inventors: 272
Latest grant: 5 May 2026

Filings by year

C09K 19/3048: granted patents and published applications per publication year
Year	Granted patents	Published applications
1991	1	0
1992	0	0
1993	3	0
1994	2	0
1995	2	0
1996	3	0
1997	5	0
1998	3	0
1999	4	0
2000	5	0
2001	5	1
2002	2	0
2003	2	1
2004	2	3
2005	1	2
2006	3	3
2007	0	3
2008	5	6
2009	3	3
2010	4	1
2011	3	7
2012	3	6
2013	6	4
2014	2	7
2015	7	10
2016	7	8
2017	3	13
2018	11	5
2019	10	5
2020	6	7
2021	2	7
2022	8	7
2023	4	6
2024	4	2
2025	4	10
2026	4	5

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

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