F01D 11/001

Preventing or minimising internal leakage of working-fluid: for sealing space between stator

Official title: {for sealing space between stator blade and rotor}

F01D11/001 (Preventing or minimising internal leakage of working-fluid: for sealing space between stator) appears on 1,200 US grants and 1,299 published applications in this corpus.

Search patents in F01D

Granted patents: 1,200
Published applications: 1,299
Assignees: 153
Inventors: 2,257
Latest grant: 25 Aug 2026

Filings by year

F01D 11/001: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	2	0
1977	0	0
1978	3	0
1979	0	0
1980	1	0
1981	6	0
1982	1	0
1983	4	0
1984	1	0
1985	2	0
1986	1	0
1987	8	0
1988	6	0
1989	5	0
1990	2	0
1991	2	0
1992	5	0
1993	8	0
1994	7	0
1995	3	0
1996	6	0
1997	6	0
1998	10	0
1999	7	0
2000	13	0
2001	12	1
2002	7	7
2003	12	13
2004	14	21
2005	9	25
2006	17	28
2007	24	38
2008	15	37
2009	16	43
2010	23	48
2011	27	44
2012	53	49
2013	37	91
2014	45	66
2015	56	97
2016	41	129
2017	67	86
2018	94	71
2019	97	76
2020	123	78
2021	71	58
2022	69	37
2023	47	45
2024	47	41
2025	47	41
2026	21	29

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

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