B60T 15/02
Application and release valves
B60T15/02 (Application and release valves) appears on 1,352 US grants and 855 published applications in this corpus.
Search patents in B60T- Granted patents
- 1,352
- Published applications
- 855
- Assignees
- 344
- Inventors
- 1,828
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 28 | 0 |
| 1978 | 33 | 0 |
| 1979 | 29 | 0 |
| 1980 | 18 | 0 |
| 1981 | 14 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 19 | 0 |
| 1985 | 19 | 0 |
| 1986 | 23 | 0 |
| 1987 | 26 | 0 |
| 1988 | 20 | 0 |
| 1989 | 26 | 0 |
| 1990 | 22 | 0 |
| 1991 | 10 | 0 |
| 1992 | 22 | 0 |
| 1993 | 18 | 0 |
| 1994 | 21 | 0 |
| 1995 | 36 | 0 |
| 1996 | 24 | 0 |
| 1997 | 21 | 0 |
| 1998 | 33 | 0 |
| 1999 | 22 | 0 |
| 2000 | 35 | 0 |
| 2001 | 44 | 2 |
| 2002 | 25 | 14 |
| 2003 | 16 | 12 |
| 2004 | 11 | 15 |
| 2005 | 10 | 21 |
| 2006 | 15 | 14 |
| 2007 | 14 | 20 |
| 2008 | 13 | 9 |
| 2009 | 5 | 13 |
| 2010 | 7 | 11 |
| 2011 | 12 | 14 |
| 2012 | 11 | 19 |
| 2013 | 18 | 12 |
| 2014 | 16 | 25 |
| 2015 | 22 | 54 |
| 2016 | 46 | 38 |
| 2017 | 37 | 41 |
| 2018 | 41 | 81 |
| 2019 | 53 | 72 |
| 2020 | 54 | 73 |
| 2021 | 64 | 78 |
| 2022 | 53 | 65 |
| 2023 | 70 | 54 |
| 2024 | 66 | 39 |
| 2025 | 30 | 46 |
| 2026 | 39 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Positive train control simulation system and method therefor8 Sep 2026US 12,731,505 B2BNSF Railway Company
- Compressed-air supply arrangement of a pneumatic brake system, and method for engaging a parking brake by limiting the delivery rate25 Aug 2026US 12,715,410 B2ZF CV Systems Global GmbH
- Vehicle brake system and method for operating a brake system11 Aug 2026US 12,703,339 B2ZF Active Safety GmbH
- Electro-hydraulic valve for proportional control of spring apply hydraulic release (SAHR) brakes4 Aug 2026US 12,697,955 B2Zf Off-Highway Solutions Minnesota Inc.
- Valve assembly and piston with double o-ring interface and relief passage4 Aug 2026US 12,698,833 B2Bendix Commercial Vehicle Systems LLC
- Trailer Vehicle and Trailer Control System8 Oct 2026US 2026/0307631 A1KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Pneumatic braking device for vehicles and method for operating a braking device8 Oct 2026US 2026/0307636 A1ZF CV Systems Global GmbH
- System for Preserving Brake System Fluid Following a Disconnection Between Members of a Combination Vehicle8 Oct 2026US 2026/0307637 A1KB Intellectual Property GmbH & Co. KG
- Lift Axle Braking System24 Sep 2026US 2026/0285270 A1KB Intellectual Property GmbH & Co. KG
- Control valve assembly for a hydraulic braking system of a vehicle connected to a trailer27 Aug 2026US 2026/0249825 A1Raicam Driveline S.R.L.
Most cited
By later US patents
- Brake actuating apparatus for a vehicle98US 5,348,123 AAkebono Brake Industry Co., Ltd. · 1994
- Solenoid valve for hydraulic brake units with slip control93US 5,318,066 AAlfred Teves GmbH · 1994
- Shift lever and parking brake control75US 4,473,141 ANissan Motor Co., Ltd. · 1984
- Integrated train control62US 7,073,753 B2New York Airbrake Corporation · 2006
- Electrically controlled pressure-holding valve57US 5,558,123 AAlliedSignal Europe Services Techniques · 1996