B60T 13/144
Pilot valve provided inside booster piston
Official title: {Pilot valve provided inside booster piston}
B60T13/144 (Pilot valve provided inside booster piston) appears on 85 US grants and 5 published applications in this corpus.
Search patents in B60T- Granted patents
- 85
- Published applications
- 5
- Assignees
- 36
- Inventors
- 98
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pneumatic brake booster having a sealing element19 Oct 2021US 11,148,650 B2Continental Teves AG & Co. oHG
- Master cylinder device26 May 2015US 9,038,380 B2Toyota Jidosha Kabushiki Kaisha
- Vehicle brake device4 Mar 2014US 8,661,811 B2Nissin Kogyo Co., Ltd.
- Hydraulic vehicle brake system and method for operating the hydraulic vehicle brake system15 May 2012US 8,177,039 B2Continental Teves AG & Co. oHG
- Hydraulic pressure assisting device provided for a hydraulic brake apparatus for a vehicle4 Feb 2003US 6,513,327 B2Aisin Seiki Kabushiki Kaisha
- Pneumatic brake booster having a sealing element24 Oct 2019US 2019/0322260 A1Continental Teves AG & Co. oHG
- Master cylinder device27 Dec 2012US 2012/0324883 A1Toyota Jidosha Kabushiki Kaisha
- Vehicle brake device27 Jan 2011US 2011/0016861 A1Nissin Kogyo Co., Ltd.
- Hydraulic vehicle brake system and method for operating the hydraulic vehicle brake system22 Jul 2010US 2010/0181824 A1Continental Teves AF & Co. oHG
- Hydraulic pressure assisting device provided for a hydraulic brake apparatus for a vehicle11 Apr 2002US 2002/0040580 A1Aisin Seiki Kabushiki Kaisha
Most cited
By later US patents
- Master cylinder for hydraulic brake system20US 4,244,185 AITT Industries, Inc. · 1981
- Master cylinder assemblies for vehicle hydraulic braking systems19US 3,979,153 AGirling Limited · 1976
- Master brake cylinder for two-circuit braking system19US 4,143,514 ARobert Bosch GmbH · 1979
- Brake booster18US 4,225,022 AITT Industries, Inc. · 1980
- Power-operated boosters18US 4,433,543 ALucas Industries Limited · 1984