F23D 11/00

Burners using a direct spraying action of liquid droplets or vaporised liquid

Official title: Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space

F23D11/00 (Burners using a direct spraying action of liquid droplets or vaporised liquid) appears on 1,877 US grants and 1,259 published applications in this corpus.

Search patents in F23D

Granted patents: 1,877
Published applications: 1,259
Assignees: 700
Inventors: 3,151
Latest grant: 15 Sep 2026

Filings by year

F23D 11/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	46	0
1977	36	0
1978	40	0
1979	30	0
1980	35	0
1981	37	0
1982	37	0
1983	47	0
1984	40	0
1985	39	0
1986	30	0
1987	26	0
1988	40	0
1989	25	0
1990	24	0
1991	19	0
1992	44	0
1993	33	0
1994	26	0
1995	32	0
1996	35	0
1997	29	0
1998	33	0
1999	38	0
2000	50	0
2001	42	18
2002	49	32
2003	39	44
2004	37	52
2005	29	46
2006	24	45
2007	19	46
2008	14	45
2009	18	64
2010	21	70
2011	44	51
2012	34	60
2013	43	49
2014	43	64
2015	46	76
2016	63	80
2017	52	66
2018	63	62
2019	59	69
2020	63	45
2021	53	32
2022	36	45
2023	32	35
2024	39	23
2025	27	26
2026	17	14

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

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