F16D 43/218
With conical friction surfaces
Official title: {with conical friction surfaces}
F16D43/218 (With conical friction surfaces) appears on 32 US grants and 28 published applications in this corpus.
Search patents in F16D- Granted patents
- 32
- Published applications
- 28
- Assignees
- 22
- Inventors
- 51
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 3 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Complex clutch apparatus12 Aug 2025US 12,385,529 B1
- Clutch mechanism for gripping tools24 Dec 2024US 12,173,761 B1Noetic Technologies Inc.
- Power transmission device3 Jan 2023US 11,543,002 B2Exedy Corporation
- Hybrid torque limiting rotary no-back device24 Aug 2021US 11,097,830 B2Hamilton Sundstrand Corporation
- Torque-dependant, releasable clutch for a hand-held power tool13 Oct 2020US 10,801,552 B2C. & E. Fein GmbH
- Complex clutch apparatus14 Aug 2025US 2025/0257767 A1
- Clutch mechanism for gripping tools19 Dec 2024US 2024/0418227 A1Noetic Technologies Inc.
- Torque limiter1 Feb 2024US 2024/0035521 A1Aisin Fukui Corporation
- Hybrid torque limiting rotary no-back device14 May 2020US 2020/0148330 A1Hamilton Sundstrand Corporation
- Torque-Dependant, Releasable Clutch for a Hand-Held Power Tool30 Jan 2020US 2020/0032855 A1C. & E. Fein GmbH
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
- Torque-responsive clutch with confined rollers21US 6,095,937 AAaen Performance Parts, Inc. · 2000
- Walk-behind working machine14US 6,848,523 B2Honda Giken Kogyo Kabushiki Kaisha · 2005
- Clutch device12US 6,464,061 B1Koyo Seiko Co., Ltd. · 2002