F16D 43/21
With friction members
Official title: with friction members {(slip couplings of the friction type F16D7/02)}
F16D43/21 (With friction members) appears on 247 US grants and 230 published applications in this corpus.
Search patents in F16D- Granted patents
- 247
- Published applications
- 230
- Assignees
- 171
- Inventors
- 410
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 4 |
| 2002 | 6 | 4 |
| 2003 | 4 | 6 |
| 2004 | 3 | 5 |
| 2005 | 6 | 4 |
| 2006 | 3 | 6 |
| 2007 | 4 | 4 |
| 2008 | 3 | 6 |
| 2009 | 4 | 6 |
| 2010 | 5 | 10 |
| 2011 | 3 | 5 |
| 2012 | 10 | 11 |
| 2013 | 6 | 9 |
| 2014 | 9 | 8 |
| 2015 | 9 | 11 |
| 2016 | 11 | 16 |
| 2017 | 6 | 11 |
| 2018 | 11 | 5 |
| 2019 | 12 | 12 |
| 2020 | 10 | 22 |
| 2021 | 10 | 9 |
| 2022 | 11 | 10 |
| 2023 | 16 | 17 |
| 2024 | 14 | 15 |
| 2025 | 12 | 9 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Clutch device28 Jul 2026US 12,692,909 B2Kabushiki Kaisha F.C.C.
- Clutch for preventing backdrive13 Jan 2026US 12,523,264 B2Hyundai Motor Company
- Overload clutch with joint torque and disengagement sensing25 Nov 2025US 12,480,550 B2Universiteit Gent
- Power transmission apparatus16 Sep 2025US 12,416,339 B2Kabushiki Kaisha F.C.C.
- Integrated controller with sensors for electromechanical biasing member2 Sep 2025US 12,404,711 B2Magna Closures Inc.
- Overload clutch with a rotation axis20 Aug 2026US 2026/0243312 A1Schaeffler Technologies AG & Co. KG
- Torque limiter and power transmission device13 Aug 2026US 2026/0235169 A1Exedy Corporation
- Clutch device with reverse input blocking function6 Aug 2026US 2026/0226949 A1Hyundai Mobis Co., Ltd.
- Multi-plate compact friction clutch for actuators16 Jul 2026US 2026/0201927 A1Tesla, Inc.
- Reverse input prevention apparatus and rear wheel steering apparatus including same9 Jul 2026US 2026/0192851 A1Hyundai Mobis Co., Ltd.
Most cited
By later US patents
- Methods and apparatus for mechanically intelligent grasping135US 5,501,498 AThe Trustees of the University of Pennsylvania · 1996
- Methods and apparatus for mechanically intelligent grasping88US 4,957,320 AThe Trustees of the University of Pennsylvania · 1990
- Magnetic clutch with adjustable slip torque82US 5,158,279 AXerox Corporation · 1992
- Main clutch connecting system having a pilot clutch44US 5,464,084 AHonda Giken Kogyo Kabushiki Kaisha · 1995
- Differential unit41US 5,106,349 AGKN Automotive AG · 1992