F23R 3/343

Pilot flames, i.e. fuel nozzles or injectors using only a very small

Official title: {Pilot flames, i.e. fuel nozzles or injectors using only a very small proportion of the total fuel to insure continuous combustion (ignition in gas-turbine plants F02C7/264; pilot flame igniters F23Q9/00)}

F23R3/343 (Pilot flames, i.e. fuel nozzles or injectors using only a very small) appears on 660 US grants and 756 published applications in this corpus.

Search patents in F23R

Granted patents: 660
Published applications: 756
Assignees: 113
Inventors: 1,203
Latest grant: 6 Oct 2026

Filings by year

F23R 3/343: granted patents and published applications per publication year
Year	Granted patents	Published applications
1981	2	0
1982	0	0
1983	0	0
1984	0	0
1985	0	0
1986	0	0
1987	0	0
1988	0	0
1989	0	0
1990	0	0
1991	0	0
1992	1	0
1993	3	0
1994	1	0
1995	2	0
1996	0	0
1997	6	0
1998	8	0
1999	7	0
2000	5	0
2001	8	5
2002	17	10
2003	11	12
2004	10	25
2005	15	15
2006	20	19
2007	6	28
2008	11	20
2009	19	42
2010	19	45
2011	18	22
2012	24	40
2013	32	35
2014	19	43
2015	28	24
2016	39	41
2017	20	44
2018	38	44
2019	27	41
2020	44	30
2021	40	30
2022	46	50
2023	50	35
2024	31	21
2025	16	20
2026	17	15

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

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