F01P 7/042
Using fluid couplings
Official title: {using fluid couplings (couplings or clutches of this type per se F16D35/00)}
F01P7/042 (Using fluid couplings) appears on 170 US grants and 84 published applications in this corpus.
Search patents in F01P- Granted patents
- 170
- Published applications
- 84
- Assignees
- 67
- Inventors
- 236
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 3 |
| 2003 | 3 | 4 |
| 2004 | 6 | 3 |
| 2005 | 1 | 5 |
| 2006 | 2 | 7 |
| 2007 | 3 | 5 |
| 2008 | 6 | 2 |
| 2009 | 4 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 5 |
| 2012 | 2 | 8 |
| 2013 | 4 | 2 |
| 2014 | 6 | 2 |
| 2015 | 4 | 8 |
| 2016 | 5 | 1 |
| 2017 | 4 | 3 |
| 2018 | 0 | 5 |
| 2019 | 1 | 3 |
| 2020 | 8 | 4 |
| 2021 | 2 | 4 |
| 2022 | 5 | 1 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Valve control system for viscous friction clutch16 Jan 2024US 11,873,868 B2Horton, Inc.
- Controller of fan coupling device25 Apr 2023US 11,635,085 B2Toyota Jidosha Kabushiki Kaisha
- Clutch assembly and integrated ARB/guard25 Apr 2023US 11,635,113 B2Horton, Inc.
- Controller of fan coupling device31 Jan 2023US 11,566,558 B2Toyota Jidosha Kabushiki Kaisha
- Apparatus for controlling engine cooling of a vehicle, a system having the same and a method thereof15 Nov 2022US 11,499,469 B2Hyundai Motor Company
- Tapered adapter for rotatable assembly and associated method19 Jun 2025US 2025/0198465 A1Horton, Inc.
- Valve Control System for Viscous Friction Clutch6 Jul 2023US 2023/0213072 A1Horton, Inc.
- Clutch Assembly and Integrated ARB/Guard12 Jan 2023US 2023/0010456 A1Horton, Inc.
- System and method using fan control to assist vehicle braking12 May 2022US 2022/0145792 A1GM Global Technology Operations LLC
- Apparatus for controlling engine cooling of a vehicle, a system having the same and a method thereof16 Dec 2021US 2021/0388752 A1Hyundai Motor Company
Most cited
By later US patents
- Fluid coupling device having improved response time49US 4,281,750 AEaton Corporation · 1981
- Cooling fin arrangement44US 6,736,195 B2BorgWarner Inc. · 2004
- Water cooled viscous fan drive40US 6,021,747 AEaton Corporation · 2000
- Fan with fluid friction clutch35US 3,993,415 ASuddeutsche Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG · 1976
- Viscous fluid clutch and reservoir by-pass valve therefor32US 4,246,995 AEaton Corporation · 1981