F16D 41/20
Freewheels or freewheel clutches: with expandable or contractable clamping ring or band
Official title: with expandable or contractable clamping ring or band (F16D41/02, F16D41/24 take precedence)
F16D41/20 (Freewheels or freewheel clutches: with expandable or contractable clamping ring or band) appears on 284 US grants and 228 published applications in this corpus.
Search patents in F16D- Granted patents
- 284
- Published applications
- 228
- Assignees
- 127
- Inventors
- 393
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 9 | 13 |
| 2004 | 10 | 9 |
| 2005 | 2 | 3 |
| 2006 | 4 | 5 |
| 2007 | 3 | 8 |
| 2008 | 1 | 4 |
| 2009 | 3 | 9 |
| 2010 | 4 | 12 |
| 2011 | 9 | 8 |
| 2012 | 14 | 5 |
| 2013 | 5 | 17 |
| 2014 | 14 | 11 |
| 2015 | 16 | 22 |
| 2016 | 13 | 14 |
| 2017 | 17 | 14 |
| 2018 | 14 | 15 |
| 2019 | 12 | 9 |
| 2020 | 11 | 9 |
| 2021 | 7 | 14 |
| 2022 | 12 | 6 |
| 2023 | 10 | 6 |
| 2024 | 12 | 8 |
| 2025 | 6 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Torque hinge with clutch mechanism28 Jul 2026US 12,692,912 B2Origin Company, Limited
- Decoupler with torque-limiting feature to protect components thereof14 Apr 2026US 12,601,381 B2Litens Automotive Partnership
- Decoupler with torque-limiting feature to protect components thereof17 Feb 2026US 12,553,478 B2Litens Automotive Partnership
- Method for producing a joint member, and a method for producing an angular position holding apparatus by using a joint member produced by the producing method19 Aug 2025US 12,392,384 B2Origin Company, Limited
- Booster clutch with a rotational axis for a drive train24 Jun 2025US 12,338,862 B2Schaeffler Technologies AG & Co. KG
- Tow hitch assembly comprising a one-way wrap spring clutch6 Aug 2026US 2026/0225416 A1Brink Towing Systems B.V.
- Decoupler with torque-limiting feature to protect components thereof29 May 2025US 2025/0172177 A1
- Decoupler with torque-limiting feature to protect components thereof2 Jan 2025US 2025/0003457 A1Litens Automotive Partnership
- Booster clutch with a rotational axis for a drive train14 Nov 2024US 2024/0376940 A1Schaeffler Technologies AG & Co. KG
- Drive unit with coupling unit19 Sep 2024US 2024/0309916 A1Dr. Fritz Faulhaber GMbH & Co.KG
Most cited
By later US patents
- Serpentine drive system with improved over-running alternator decoupler130US 6,083,130 ALitens Automotive Partnership · 2000
- Serpentine drive with coil spring-one-way clutch alternator connection100US 5,156,573 ALitens Automotive Partnership · 1992
- Electromechanical joint control device with wrap spring clutch93US 6,500,138 B1Mayo Foundation for Medical Education and Research · 2002
- Fail safe valve actuator86US 5,195,721 AAVA International Corporation · 1993
- Roller shade clutch with internal gearing82US 6,685,592 B2Rollease, Inc. · 2004