B60T 13/261
Systems with both indirect application and application by springs or weights and
Official title: {systems with both indirect application and application by springs or weights and released by compressed air}
B60T13/261 (Systems with both indirect application and application by springs or weights and) appears on 234 US grants and 167 published applications in this corpus.
Search patents in B60T- Granted patents
- 234
- Published applications
- 167
- Assignees
- 107
- Inventors
- 423
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 12 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 4 |
| 2004 | 5 | 3 |
| 2005 | 2 | 5 |
| 2006 | 3 | 3 |
| 2007 | 3 | 4 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 5 |
| 2011 | 2 | 4 |
| 2012 | 4 | 4 |
| 2013 | 3 | 1 |
| 2014 | 3 | 3 |
| 2015 | 4 | 3 |
| 2016 | 4 | 2 |
| 2017 | 1 | 4 |
| 2018 | 3 | 11 |
| 2019 | 8 | 7 |
| 2020 | 6 | 14 |
| 2021 | 10 | 18 |
| 2022 | 13 | 12 |
| 2023 | 11 | 10 |
| 2024 | 14 | 19 |
| 2025 | 10 | 13 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tractor trailer with self-contained brake release capabilities for autonomous yard shifting8 Sep 2026US 12,728,830 B2Airgo IP, LLC
- Apparatus and method for controlling a trailer parking brake indicator in a tractor, and method for modifying a tractor2 Jun 2026US 12,643,510 B2Volvo Truck Corporation
- Trailer brake control system26 May 2026US 12,637,043 B2AGCO International GmbH
- Brake system for a motor vehicle and trailer control module19 May 2026US 12,630,135 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- System and method for failsafe operation of a tractor protection control module21 Apr 2026US 12,605,976 B2Bendix Commercial Vehicle Systems LLC
- Braking System, Vehicle Combination and Method of Operating the Same27 Aug 2026US 2026/0249823 A1KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- System and Method for Failsafe Operation of a Tractor Protection Control Module6 Aug 2026US 2026/0225413 A1Bendix Commercial Vehicle Systems LLC
- Method and System for Detecting the Presence of a Trailer23 Jul 2026US 2026/0212714 A1KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Trailer control valve and method for controlling a trailer brake pressure21 May 2026US 2026/0138579 A1
- Electropneumatic abs braking system for a commercial vehicle26 Mar 2026US 2026/0084670 A1ZF CV Systems Global GmbH
Most cited
By later US patents
- Brake control system and method67US 4,768,840 AEaton Corporation · 1988
- Parking brake control system53US 6,685,281 B255 Brake Company · 2004
- Vehicle brake safety system apparatus and methods49US 6,450,587 B155 Brake Company · 2002
- Tractor protection control system46US 5,061,015 AAllied-Signal Inc. · 1991
- Trailer braking system for a towing vehicle41US 5,042,883 ALucas Industries public limited company · 1991