F04C 15/0057

Driving elements, brakes, couplings, transmission specially adapted for machines or pumps

Official title: {Driving elements, brakes, couplings, transmission specially adapted for machines or pumps (brakes, couplings, transmissions per se F16, B60)}

F04C15/0057 (Driving elements, brakes, couplings, transmission specially adapted for machines or pumps) appears on 1,039 US grants and 1,070 published applications in this corpus.

Search patents in F04C

Granted patents: 1,039
Published applications: 1,070
Assignees: 586
Inventors: 2,167
Latest grant: 6 Oct 2026

Filings by year

F04C 15/0057: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	4	0
1977	6	0
1978	4	0
1979	9	0
1980	8	0
1981	2	0
1982	5	0
1983	7	0
1984	6	0
1985	16	0
1986	11	0
1987	5	0
1988	9	0
1989	4	0
1990	6	0
1991	6	0
1992	9	0
1993	14	0
1994	10	0
1995	13	0
1996	17	0
1997	11	0
1998	9	0
1999	11	0
2000	23	0
2001	19	4
2002	15	13
2003	15	16
2004	9	25
2005	10	32
2006	18	22
2007	15	16
2008	10	24
2009	11	31
2010	19	38
2011	15	23
2012	30	38
2013	16	34
2014	31	52
2015	31	79
2016	29	83
2017	68	66
2018	50	72
2019	63	73
2020	53	59
2021	56	47
2022	56	61
2023	48	46
2024	53	40
2025	47	48
2026	27	28

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

Driving elements, brakes, couplings, transmission specially adapted for machines or pumps

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