F16D 21/00
Systems comprising a plurality of actuated clutches
Official title: Systems comprising a plurality of actuated clutches (for synchronisation F16D23/04)
F16D21/00 (Systems comprising a plurality of actuated clutches) appears on 1,038 US grants and 997 published applications in this corpus.
Search patents in F16D- Granted patents
- 1,038
- Published applications
- 997
- Assignees
- 311
- Inventors
- 1,828
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 4 | 0 |
| 1986 | 15 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 13 | 9 |
| 2003 | 14 | 21 |
| 2004 | 12 | 15 |
| 2005 | 12 | 31 |
| 2006 | 13 | 21 |
| 2007 | 14 | 34 |
| 2008 | 14 | 35 |
| 2009 | 16 | 35 |
| 2010 | 24 | 35 |
| 2011 | 28 | 64 |
| 2012 | 33 | 42 |
| 2013 | 55 | 49 |
| 2014 | 57 | 57 |
| 2015 | 61 | 49 |
| 2016 | 45 | 53 |
| 2017 | 54 | 62 |
| 2018 | 40 | 61 |
| 2019 | 54 | 62 |
| 2020 | 61 | 65 |
| 2021 | 77 | 66 |
| 2022 | 61 | 48 |
| 2023 | 44 | 35 |
| 2024 | 35 | 28 |
| 2025 | 27 | 13 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Clutch guard6 Oct 2026US 12,753,805 B2Arctic Cat Inc.
- 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
- Double clutch arrangement, drive train and work machine24 Sep 2026US 2026/0287027 A1Deere & Company
- Power transmission device and joint device24 Sep 2026US 2026/0287046 A1Honda Motor Co., Ltd.
- 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
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
- Transfer case having parallel clutches and lockup feature88US 5,584,776 ABorg-Warner Automotive, Inc. · 1996
- 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