B60T 8/56
Having means for changing the coefficient of friction
Official title: having means for changing the coefficient of friction
B60T8/56 (Having means for changing the coefficient of friction) appears on 30 US grants and 25 published applications in this corpus.
Search patents in B60T- Granted patents
- 30
- Published applications
- 25
- Assignees
- 20
- Inventors
- 55
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 0 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 3 | 2 |
| 2018 | 0 | 3 |
| 2019 | 4 | 4 |
| 2020 | 0 | 2 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vehicle tire heater and cleaner system4 Jun 2024US 11,999,322 B2Fca US LLC
- Ultrasonic grip system3 Jan 2023US 11,541,422 B2
- Method and system for determining tire-to-road friction in a vehicle14 Dec 2021US 11,198,442 B2Volvo Car Corporation
- Braking control for rail vehicles with adaptive lining characteristic curve6 Jul 2021US 11,052,884 B2Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Method for estimating coefficient of friction of a hydraulic brake system6 Jul 2021US 11,052,885 B2Audi AG
- Vehicle tire heater and cleaner system19 Aug 2021US 2021/0253069 A1Fca US LLC
- Control method of a braking system of at least one railway vehicle26 Nov 2020US 2020/0369251 A1FAIVELEY TRANSPORT ITALIA S. p. A.
- Ultrasonic grip system20 Feb 2020US 2020/0055086 A1
- Method and system for determining tire-to-road friction in a vehicle26 Dec 2019US 2019/0389475 A1Volvo Car Corporation
- Method for estimating coefficient of friction of a hydraulic brake system12 Dec 2019US 2019/0375386 A1Audi AG
Most cited
By later US patents
- Method and apparatus for improving vehicle traction and roadability25US 5,010,982 ARobert Bosch GmbH · 1991
- Traction-enhancing system for use with motor vehicles23US 6,371,532 B12002
- Emergency braking apparatus for vehicle12US 7,213,687 B2Advics Co., Ltd. · 2007
- Variable tire pressure traction control enhancement10US 5,839,801 AITT Manufacturing Enterprises, Inc. · 1998
- Friction controller8US 4,334,602 AThe Minister of Transport in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1982