F16D 43/00
Automatic clutches
Official title: Automatic clutches (varying the relationship between two coaxial shafts F16D3/10; freewheels, freewheel clutches F16D41/00)
F16D43/00 (Automatic clutches) appears on 1,690 US grants and 1,105 published applications in this corpus.
Search patents in F16D- Granted patents
- 1,690
- Published applications
- 1,105
- Assignees
- 788
- Inventors
- 2,624
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 31 | 0 |
| 1978 | 28 | 0 |
| 1979 | 14 | 0 |
| 1980 | 44 | 0 |
| 1981 | 39 | 0 |
| 1982 | 16 | 0 |
| 1983 | 18 | 0 |
| 1984 | 21 | 0 |
| 1985 | 23 | 0 |
| 1986 | 32 | 0 |
| 1987 | 35 | 0 |
| 1988 | 26 | 0 |
| 1989 | 36 | 0 |
| 1990 | 42 | 0 |
| 1991 | 32 | 0 |
| 1992 | 25 | 0 |
| 1993 | 19 | 0 |
| 1994 | 24 | 0 |
| 1995 | 23 | 0 |
| 1996 | 32 | 0 |
| 1997 | 21 | 0 |
| 1998 | 19 | 0 |
| 1999 | 42 | 0 |
| 2000 | 33 | 0 |
| 2001 | 36 | 12 |
| 2002 | 29 | 26 |
| 2003 | 36 | 37 |
| 2004 | 29 | 39 |
| 2005 | 21 | 40 |
| 2006 | 39 | 34 |
| 2007 | 23 | 35 |
| 2008 | 28 | 36 |
| 2009 | 17 | 44 |
| 2010 | 25 | 35 |
| 2011 | 22 | 30 |
| 2012 | 38 | 53 |
| 2013 | 39 | 37 |
| 2014 | 46 | 42 |
| 2015 | 54 | 56 |
| 2016 | 38 | 60 |
| 2017 | 51 | 44 |
| 2018 | 35 | 60 |
| 2019 | 55 | 73 |
| 2020 | 73 | 67 |
| 2021 | 52 | 45 |
| 2022 | 53 | 51 |
| 2023 | 56 | 56 |
| 2024 | 38 | 36 |
| 2025 | 40 | 35 |
| 2026 | 14 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reverse-input blocking clutch15 Sep 2026US 12,736,089 B2Nsk Ltd.
- Overload clutch arrangement15 Sep 2026US 12,736,096 B2
- Fixing device11 Aug 2026US 12,704,143 B2Deere & Company
- Disconnector system for disconnecting a drive shaft11 Aug 2026US 12,704,156 B2General Electric Company
- Clutch device28 Jul 2026US 12,692,909 B2Kabushiki Kaisha F.C.C.
- Centrifugal Force Enabled Clutch and Aircraft8 Oct 2026US 2026/0309196 A1Lockheed Martin Corporation
- Electric brake apparatus20 Aug 2026US 2026/0241911 A1Astemo, Ltd.
- Overload clutch with a rotation axis20 Aug 2026US 2026/0243312 A1Schaeffler Technologies AG & Co. KG
- Driven clutch for continuously variable transmission20 Aug 2026US 2026/0243331 A1Polaris Industries Inc.
- Rotor, rotor attachment mechanism, centrifuge and corresponding methods13 Aug 2026US 2026/0233237 A1Thermo Electron LED GmbH
Most cited
By later US patents
- Torsional damper having variable bypass clutch with centrifugal release mechanism328US 6,854,580 B2BorgWarner Inc. · 2005
- Rotational atherectomy device with radially expandable prime mover coupling189US 6,129,734 AShturman Cardiology Systems, Inc. · 2000
- Compliant overrunning clutch with centrifugal throw-out163US 6,148,979 ABrigham Young University · 2000
- Controlled power clutch139US 4,081,065 A1978
- Methods and apparatus for mechanically intelligent grasping135US 5,501,498 AThe Trustees of the University of Pennsylvania · 1996