F16D 33/00
Rotary fluid couplings or clutches of the hydrokinetic type
F16D33/00 (Rotary fluid couplings or clutches of the hydrokinetic type) appears on 297 US grants and 257 published applications in this corpus.
Search patents in F16D- Granted patents
- 297
- Published applications
- 257
- Assignees
- 116
- Inventors
- 527
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 4 |
| 2002 | 12 | 4 |
| 2003 | 6 | 15 |
| 2004 | 12 | 21 |
| 2005 | 17 | 10 |
| 2006 | 8 | 6 |
| 2007 | 7 | 8 |
| 2008 | 4 | 15 |
| 2009 | 6 | 13 |
| 2010 | 12 | 3 |
| 2011 | 5 | 7 |
| 2012 | 4 | 6 |
| 2013 | 5 | 26 |
| 2014 | 9 | 27 |
| 2015 | 22 | 11 |
| 2016 | 25 | 9 |
| 2017 | 13 | 16 |
| 2018 | 9 | 8 |
| 2019 | 11 | 9 |
| 2020 | 10 | 11 |
| 2021 | 12 | 6 |
| 2022 | 8 | 10 |
| 2023 | 5 | 5 |
| 2024 | 4 | 4 |
| 2025 | 7 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Torque converter with floating hub26 Aug 2025US 12,398,793 B2Schaeffler Technologies AG & Co. KG
- Shear thickening fluid based rotary power shunt mechanism13 May 2025US 12,297,875 B2Moshun, LLC
- Resolver assembly for hybrid module13 May 2025US 12,297,895 B1Schaeffler Technologies AG & Co. KG
- Rotary union6 May 2025US 12,292,144 B2Murzanski Engineering
- Shear thickening fluid based rotary power coupler mechanism25 Mar 2025US 12,259,014 B2Moshun, LLC
- Shear thickening fluid based rotary power shunt mechanism4 Sep 2025US 2025/0277515 A1Moshun, LLC
- Hydrodynamic automatic continuously variable transmission4 Sep 2025US 2025/0277521 A1
- Torque converter with floating hub12 Jun 2025US 2025/0189024 A1Schaeffler Technologies AG & Co. KG
- Rotary Union17 Oct 2024US 2024/0344643 A1Murzanski Engineering
- Rotary Union17 Oct 2024US 2024/0344644 A1Murzanski Engineering
Most cited
By later US patents
- Hydrodynamic coupling83US 6,698,195 B1Voith Turbo GmbH & Co. KG · 2004
- System and method for accumulating hydraulic fluid48US 6,655,136 B2Caterpillar Inc. · 2003
- Torque converter clutch with a temperature regulator valve47US 4,423,803 AGeneral Motors Corporation · 1984
- Multiple-clutch device37US 6,464,059 B1Mannesmann Sachs AG · 2002
- Mechanism to engage part time drive system in a moving vehicle33US 4,632,207 AFord Motor Company · 1986