B60T 13/163
Pilot valve provided inside booster piston
Official title: {Pilot valve provided inside booster piston}
B60T13/163 (Pilot valve provided inside booster piston) appears on 35 US grants and 2 published applications in this corpus.
Search patents in B60T- Granted patents
- 35
- Published applications
- 2
- Assignees
- 19
- Inventors
- 46
- Latest grant
- 9 Nov 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 0 |
| 2004 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic brake and steering assist system9 Nov 2004US 6,814,413 B2Delphi Technologies, Inc.
- Hydraulic pressure control device and vehicle brake device using the same11 Nov 2003US 6,644,760 B2Sumitomo (SEI) Brake Systems, Inc.
- Hydraulic booster device8 Apr 2003US 6,543,332 B1
- Apparatus in braking system, for diagnosing pressurizing device based on fluid pressure detected during operation of the device prior to operation of the braking system7 May 2002US 6,382,737 B1Toyota Jidosha Kabushiki Kaisha
- Hydraulic booster device25 Apr 2000US 6,053,089 ABosch Braking Systems Co., Ltd.
Most cited
By later US patents
- Apparatus in braking system, for diagnosing pressurizing device based on fluid pressure detected during operation of the device prior to operation of the braking system15US 6,382,737 B1Toyota Jidosha Kabushiki Kaisha · 2002
- Hydraulic brake and steering assist system14US 6,814,413 B2Delphi Technologies, Inc. · 2004
- Hydraulic brake booster13US 4,179,980 AAisin Seiki Kabushiki Kaisha · 1979
- Dual power brake booster11US 4,110,985 AGeneral Motors Corporation · 1978
- Servo-assisted hydraulic braking system10US 4,114,376 AFiat Societa per Azioni · 1978