F23M

Casings, linings, walls or doors specially adapted for combustion chambers

Official title: Casings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges; devices for deflecting air, flames or combustion products in combustion chambers; safety arrangements specially adapted for combustion apparatus; details of combustion chambers, not otherwise provided for

F23M (Casings, linings, walls or doors specially adapted for combustion chambers) appears on 2,045 US grants and 1,591 published applications in this corpus.

Search patents in F23M

Granted patents: 2,045
Published applications: 1,591
Assignees: 949
Inventors: 4,257
Latest grant: 15 Sep 2026

Filings by year

F23M: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	20	0
1977	25	0
1978	14	0
1979	23	0
1980	19	0
1981	32	0
1982	24	0
1983	37	0
1984	54	0
1985	26	0
1986	33	0
1987	39	0
1988	29	0
1989	41	0
1990	33	0
1991	31	0
1992	21	0
1993	27	0
1994	36	0
1995	35	0
1996	25	0
1997	30	0
1998	49	0
1999	38	0
2000	46	0
2001	48	17
2002	56	46
2003	52	69
2004	47	64
2005	62	83
2006	47	67
2007	33	68
2008	38	53
2009	32	82
2010	41	76
2011	38	71
2012	50	76
2013	56	75
2014	47	84
2015	63	86
2016	49	116
2017	55	64
2018	70	64
2019	91	77
2020	61	62
2021	58	45
2022	54	47
2023	36	32
2024	31	32
2025	25	26
2026	18	9

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

Casings, linings, walls or doors specially adapted for combustion chambers

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