B60T 13/52
Indirect, i.e. vacuum booster units
Official title: indirect, i.e. vacuum booster units
B60T13/52 (Indirect, i.e. vacuum booster units) appears on 1,303 US grants and 521 published applications in this corpus.
Search patents in B60T- Granted patents
- 1,303
- Published applications
- 521
- Assignees
- 181
- Inventors
- 1,345
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 11 | 0 |
| 1978 | 17 | 0 |
| 1979 | 8 | 0 |
| 1980 | 17 | 0 |
| 1981 | 29 | 0 |
| 1982 | 22 | 0 |
| 1983 | 29 | 0 |
| 1984 | 34 | 0 |
| 1985 | 39 | 0 |
| 1986 | 44 | 0 |
| 1987 | 37 | 0 |
| 1988 | 41 | 0 |
| 1989 | 39 | 0 |
| 1990 | 35 | 0 |
| 1991 | 50 | 0 |
| 1992 | 46 | 0 |
| 1993 | 53 | 0 |
| 1994 | 29 | 0 |
| 1995 | 27 | 0 |
| 1996 | 30 | 0 |
| 1997 | 30 | 0 |
| 1998 | 39 | 0 |
| 1999 | 41 | 0 |
| 2000 | 33 | 0 |
| 2001 | 43 | 12 |
| 2002 | 36 | 31 |
| 2003 | 45 | 42 |
| 2004 | 31 | 50 |
| 2005 | 35 | 29 |
| 2006 | 34 | 25 |
| 2007 | 16 | 23 |
| 2008 | 9 | 18 |
| 2009 | 9 | 15 |
| 2010 | 12 | 30 |
| 2011 | 14 | 15 |
| 2012 | 13 | 20 |
| 2013 | 16 | 21 |
| 2014 | 17 | 18 |
| 2015 | 19 | 31 |
| 2016 | 20 | 22 |
| 2017 | 25 | 24 |
| 2018 | 28 | 28 |
| 2019 | 21 | 19 |
| 2020 | 19 | 19 |
| 2021 | 18 | 14 |
| 2022 | 6 | 2 |
| 2023 | 6 | 5 |
| 2024 | 7 | 2 |
| 2025 | 1 | 4 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B60T 13/57Characterised by constructional features of control valves338
- B60T 13/567Characterised by constructional features of the casing or by its strengthening or246
- B60T 13/573Characterised by reaction devices244
- B60T 13/565Characterised by being associated with master cylinders223
- B60T 13/569Characterised by piston details180
- B60T 13/563With multiple booster units149
- B60T 13/56With two-chamber booster units9
Recent patents
- Brake booster assembly15 Sep 2026US 12,735,012 B2Polaris Industries Inc.
- Method for actuating a mechanism in a brake booster unit of a braking system and braking system26 May 2026US 12,637,047 B2Robert Bosch GmbH
- Collision avoidance/brake system12 May 2026US 12,623,642 B2
- Pneumatic piston and method for producing same21 Apr 2026US 12,607,261 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Actuating unit, brake booster, vehicle brake system and subassembly therefor13 Jan 2026US 12,523,278 B2ZF Active Safety GmbH
- Balanced pneumatic regulator25 Jun 2026US 2026/0177347 A1Kore Outdoor (US), Inc.
- Systems and methods for installing a booster to a vehicle11 Jun 2026US 2026/0159055 A1Tesla, Inc.
- Method for actuating a mechanism in a brake booster unit of a braking system and braking system23 Oct 2025US 2025/0326382 A1Robert Bosch GmbH
- Hydraulic assembly, housing assembly for a hydraulic assembly, and method for producing a housing assembly9 Oct 2025US 2025/0313183 A1
- Pneumatic piston and method for producing same31 Jul 2025US 2025/0243935 A1KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
Most cited
By later US patents
- Ball-and-socket assembly and method of making127US 5,153,976 AAllied-Signal Inc. · 1992
- Sway control means for a trailer77US 3,948,567 AThe Bendix Corporation · 1976
- Road vehicle brake-pressure control device61US 5,350,225 AMercedes-Benz AG · 1994
- Reaction mechanism for booster59US 6,003,426 AJidosha Kiki Co., Ltd. · 1999
- Brake-pressure control device for a road vehicle43US 5,350,224 AMercedes-Benz AG · 1994