F16D 25/00
Fluid-actuated clutches
F16D25/00 (Fluid-actuated clutches) appears on 3,609 US grants and 2,814 published applications in this corpus.
Search patents in F16D- Granted patents
- 3,609
- Published applications
- 2,814
- Assignees
- 790
- Inventors
- 5,342
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 29 | 0 |
| 1978 | 32 | 0 |
| 1979 | 16 | 0 |
| 1980 | 24 | 0 |
| 1981 | 36 | 0 |
| 1982 | 19 | 0 |
| 1983 | 27 | 0 |
| 1984 | 48 | 0 |
| 1985 | 43 | 0 |
| 1986 | 66 | 0 |
| 1987 | 73 | 0 |
| 1988 | 34 | 0 |
| 1989 | 43 | 0 |
| 1990 | 57 | 0 |
| 1991 | 62 | 0 |
| 1992 | 39 | 0 |
| 1993 | 40 | 0 |
| 1994 | 32 | 0 |
| 1995 | 32 | 0 |
| 1996 | 35 | 0 |
| 1997 | 45 | 0 |
| 1998 | 52 | 0 |
| 1999 | 70 | 0 |
| 2000 | 60 | 0 |
| 2001 | 58 | 32 |
| 2002 | 76 | 57 |
| 2003 | 89 | 71 |
| 2004 | 59 | 98 |
| 2005 | 59 | 105 |
| 2006 | 79 | 104 |
| 2007 | 72 | 106 |
| 2008 | 56 | 126 |
| 2009 | 41 | 106 |
| 2010 | 65 | 90 |
| 2011 | 75 | 105 |
| 2012 | 89 | 110 |
| 2013 | 108 | 106 |
| 2014 | 120 | 134 |
| 2015 | 143 | 146 |
| 2016 | 122 | 147 |
| 2017 | 132 | 214 |
| 2018 | 165 | 187 |
| 2019 | 180 | 151 |
| 2020 | 196 | 189 |
| 2021 | 174 | 130 |
| 2022 | 155 | 119 |
| 2023 | 87 | 69 |
| 2024 | 82 | 57 |
| 2025 | 61 | 35 |
| 2026 | 21 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16D 25/06In which the fluid actuates a piston incorporated in, i.e. rotating with1,830
- F16D 25/12Details not specific to one of the before-mentioned types1,567
- F16D 25/08Fluid-actuated clutches: with fluid-actuated member not rotating with a clutching member1,029
- F16D 25/10Clutch systems with a plurality of fluid-actuated clutches698
- F16D 25/04In which the fluid actuates an elastic clutching, i.e. elastic actuating member129
- F16D 25/02Fluid-actuated clutches: with means for actuating or keeping engaged by a force39
Recent patents
- Electric transmission with friction clutch disengagement device6 Oct 2026US 12,752,616 B2Dana Automotive Systems Group, LLC
- Solenoid stabilizers and methods for stabilizing solenoids in valve bodies6 Oct 2026US 12,753,806 B2Sonnax Transmission Company
- Rear wheel drive clutch control system of work vehicle15 Sep 2026US 12,734,879 B2Deere & Company
- Electric traction axle/beam15 Sep 2026US 12,736,115 B2Fpt Industrial S.P.A.
- Transmission, in particular for a motor vehicle15 Sep 2026US 12,736,124 B2Mercedes-Benz Group AG
- Driveline assembly park brake for a work vehicle8 Oct 2026US 2026/0307480 A1Deere & Company
- Electric transmission with friction clutch disengagement device1 Oct 2026US 2026/0296174 A1Dana Automotive Systems Group, LLC
- Spring released hydraulic applied actuator for a work vehicle1 Oct 2026US 2026/0298296 A1CNH Industrial Italia S.p.A.
- Hydraulic system, hybrid transmission, and vehicle10 Sep 2026US 2026/0266342 A1Chery Automobile Co., Ltd.
- Clutch unit for reversibly coupling a drive side to an output side of a drive train27 Aug 2026US 2026/0251187 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Belt type continuous reduction gear mechanism147US 4,560,369 AHonda Giken Kogyo Kabushiki Kaisha · 1985
- Controlled power clutch139US 4,081,065 A1978
- Power transmission system in a hybrid vehicle90US 5,562,565 AKabushikikaisha Equos Research · 1996
- Liquid cooled magnetorheological fluid clutch for automotive transmissions89US 6,371,267 B1General Motors Corporation · 2002
- Multi-speed transmission with a series disconnect clutch87US 8,939,863 B2GM Global Technology Operations LLC · 2015