B60K 17/351
Comprising a viscous clutch
Official title: {comprising a viscous clutch}
B60K17/351 (Comprising a viscous clutch) appears on 114 US grants and 32 published applications in this corpus.
Search patents in B60K- Granted patents
- 114
- Published applications
- 32
- Assignees
- 49
- Inventors
- 169
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 12 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 3 | 0 |
| 2017 | 0 | 3 |
| 2018 | 4 | 5 |
| 2019 | 5 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Front-rear wheel driving force distribution device and front-rear wheel driving force distribution device controller28 Jan 2025US 12,208,678 B2Subaru Corporation
- Transfer device of vehicle14 Jan 2025US 12,194,844 B2Mazda Motor Corporation
- Limited slip differential and controlling method therefor4 Jun 2024US 12,000,468 B2Hyundai Wia Corporation
- Transmission, in particular for a vehicle17 Oct 2023US 11,788,607 B2Dana Belgium N.V.
- Vehicle25 Oct 2022US 11,479,119 B2Toyota Jidosha Kabushiki Kaisha
- Front-rear wheel driving force distribution device and front-rear wheel driving force distribution device controller7 Sep 2023US 2023/0278421 A1Subaru Corporation
- Limited slip differential and controlling method therefor2 Mar 2023US 2023/0068948 A1Hyundai Wia Corporation
- Transfer device of vehicle21 Jul 2022US 2022/0227227 A1Mazda Motor Corporation
- Transmission, in particular for a vehicle3 Mar 2022US 2022/0065331 A1Dana Belgium N.V.
- Vehicle8 Apr 2021US 2021/0101481 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Rotation transmission device58US 5,924,510 ANtn Corporation · 1999
- Torque transmission device for a four-wheel drive vehicle54US 4,905,808 AToyoda Koki Kabushiki Kaisha · 1990
- Axle drive for distributing torque48US 5,632,185 AGKN Viscodrive GmbH · 1997
- All-wheel drive system for vehicles44US 4,605,087 AVolkswagenwerk Aktiengesellschaft · 1986
- Viscous clutch assembly for torque transmission in motor vehicle33US 5,036,963 AToyota Jidosha Kabushiki Kaisha · 1991