F16D 25/06

In which the fluid actuates a piston incorporated in, i.e. rotating with

Official title: in which the fluid actuates a piston incorporated in, {i.e. rotating with} the clutch (F16D25/02 takes precedence)

F16D25/06 (In which the fluid actuates a piston incorporated in, i.e. rotating with) appears on 1,830 US grants and 1,606 published applications in this corpus.

Search patents in F16D

Granted patents: 1,830
Published applications: 1,606
Assignees: 453
Inventors: 2,989
Latest grant: 6 Oct 2026

Filings by year

F16D 25/06: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	7	0
1977	16	0
1978	7	0
1979	8	0
1980	7	0
1981	17	0
1982	8	0
1983	12	0
1984	20	0
1985	7	0
1986	18	0
1987	15	0
1988	11	0
1989	21	0
1990	25	0
1991	20	0
1992	14	0
1993	11	0
1994	10	0
1995	12	0
1996	16	0
1997	28	0
1998	16	0
1999	32	0
2000	28	0
2001	21	10
2002	34	20
2003	39	39
2004	30	40
2005	24	51
2006	36	63
2007	36	64
2008	27	79
2009	21	65
2010	38	62
2011	43	45
2012	51	71
2013	65	61
2014	71	86
2015	92	78
2016	75	88
2017	72	130
2018	105	127
2019	113	76
2020	119	100
2021	103	72
2022	82	75
2023	53	34
2024	44	38
2025	41	21
2026	9	11

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

In which the fluid actuates a piston incorporated in, i.e. rotating with

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