F16D 21/02
Systems comprising a plurality of actuated clutches: for interconnecting three or more
Official title: for interconnecting three or more shafts or other transmission members in different ways (in endless-track vehicles B62D)
F16D21/02 (Systems comprising a plurality of actuated clutches: for interconnecting three or more) appears on 847 US grants and 805 published applications in this corpus.
Search patents in F16D- Granted patents
- 847
- Published applications
- 805
- Assignees
- 260
- Inventors
- 1,486
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 10 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 12 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 13 | 9 |
| 2003 | 12 | 20 |
| 2004 | 11 | 14 |
| 2005 | 12 | 28 |
| 2006 | 12 | 21 |
| 2007 | 13 | 34 |
| 2008 | 14 | 32 |
| 2009 | 16 | 35 |
| 2010 | 23 | 32 |
| 2011 | 28 | 59 |
| 2012 | 30 | 39 |
| 2013 | 51 | 43 |
| 2014 | 51 | 47 |
| 2015 | 51 | 44 |
| 2016 | 41 | 32 |
| 2017 | 43 | 47 |
| 2018 | 22 | 49 |
| 2019 | 41 | 48 |
| 2020 | 50 | 41 |
| 2021 | 53 | 41 |
| 2022 | 38 | 33 |
| 2023 | 27 | 22 |
| 2024 | 28 | 22 |
| 2025 | 19 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spool selection transmissions with towershaft connections29 Sep 2026US 12,747,704 B1Hamilton Sundstrand Corporation
- Dual clutch transmission system23 Jun 2026US 12,663,058 B2Punch Powertrain Psa E-Transmissions N.V.
- Clutch assembly, power mechanism and vehicle12 May 2026US 12,623,528 B2BYD Company Limited
- Mobile fracturing pump transport for hydraulic fracturing of subsurface geological formations12 May 2026US 12,624,685 B2Typhon Technology Solutions (U.S.), LLC
- Torque transmission assembly for a motor vehicle10 Mar 2026US 12,571,455 B2BorgWarner Inc.
- Double clutch arrangement, drive train and work machine24 Sep 2026US 2026/0287027 A1Deere & Company
- Mobile Fracturing Pump Transport for Hydraulic Fracturing of Subsurface Geological Formations27 Aug 2026US 2026/0251132 A1Typhon Technology Solutions (U.S.), LLC
- Compact parallel double clutch unit12 Mar 2026US 2026/0071655 A1Transmisiones Y Equipos Mecanicos, S.A. De Cv
- Marine propulsion device29 Jan 2026US 2026/0028109 A1Suzuki Motor Corporation
- Clutch assembly for selectively coupling one of a first output shaft and a second output shaft with an input shaft, transmission unit, and vehicle31 Jul 2025US 2025/0243912 A1Volvo Car Corporation
Most cited
By later US patents
- Self-detenting transmission shift key1,024US 5,109,722 AThe Toro Company · 1992
- Mobile fracturing pump transport for hydraulic fracturing of subsurface geological formations265US 10,378,326 B2Typhon Technology Solutions, LLC · 2019
- Multi-speed transmission with a series disconnect clutch87US 8,939,863 B2GM Global Technology Operations LLC · 2015
- Power transmission79US 4,732,253 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1988
- Power train having an internal combustion engine, energy converter, clutch, and accessory78US 6,668,953 B1LuK Lamellan und Kunpplungsbau Beteiligungs KG · 2003