B60T 8/4225
Having a fluid actuated expansion unit
Official title: {having a fluid actuated expansion unit}
B60T8/4225 (Having a fluid actuated expansion unit) appears on 208 US grants and 9 published applications in this corpus.
Search patents in B60T- Granted patents
- 208
- Published applications
- 9
- Assignees
- 59
- Inventors
- 224
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 10 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 14 | 0 |
| 1988 | 21 | 0 |
| 1989 | 21 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 16 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve unit for an anti-lock braking system3 Mar 2026US 12,565,186 B2Raicam Driveline S.R.L.
- Automatically controlled braking system15 Aug 2023US 11,724,675 B2Brembo S.p.A.
- Spring brake actuator21 Mar 2023US 11,608,866 B2TSE Brakes, Inc.
- Spring brake actuator28 Dec 2021US 11,209,058 B2TSE Brakes, Inc.
- Automatically controlled actuator device for brakes17 Jul 2018US 10,023,160 B2FRENI BREMBO S.p. A.
- Valve unit for an anti-lock braking system21 Mar 2024US 2024/0092332 A1Raicam Driveline S.R.L.
- Anti-lock brake apparatus, vehicle, electric vehicle and electric-assisted vehicle22 Jun 2023US 2023/0192046 A1LING JI INNOVATIONS Tech Co., Ltd.
- Spring brake actuator24 Feb 2022US 2022/0056971 A1TSE Brakes, Inc.
- Spring brake actuator20 May 2021US 2021/0148424 A1TSE Brakes, Inc.
- Automatically Controlled Actuator Device For Brakes1 Nov 2018US 2018/0312145 A1
Most cited
By later US patents
- Brake actuating apparatus for a vehicle98US 5,348,123 AAkebono Brake Industry Co., Ltd. · 1994
- Problem diagnosis system in pressure device control apparatus92US 5,373,454 AHonda Giken Kogyo Kabushiki Kaisha · 1994
- Method and apparatus for controlling brake pressure in vehicle brake systems43US 4,678,243 ARobert Bosch GmbH · 1987
- Hydraulic anti-skid braking systems for vehicles38US 4,715,666 ALucas Industries public limited company · 1987
- Integral anti-lock brake/traction control system38US 5,217,283 AFord Motor Company · 1993