F16H 2061/1252
Fail safe valves
Official title: {Fail safe valves}
F16H2061/1252 (Fail safe valves) appears on 37 US grants and 29 published applications in this corpus.
Search patents in F16H- Granted patents
- 37
- Published applications
- 29
- Assignees
- 21
- Inventors
- 117
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 8 |
| 2017 | 2 | 7 |
| 2018 | 8 | 1 |
| 2019 | 4 | 2 |
| 2020 | 1 | 4 |
| 2021 | 4 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic control valve, hydraulic control system, and transmission26 Aug 2025US 12,398,817 B2Wuxi Infimotion Technology Co., Ltd.
- Power transmission apparatus for vehicle26 Mar 2024US 11,940,045 B2Toyota Jidosha Kabushiki Kaisha
- Hydraulic control apparatus30 May 2023US 11,662,019 B1Honda Motor Co., Ltd.
- Hydraulic control device for automatic transmission15 Nov 2022US 11,499,632 B2Aisin Corporation
- Drive apparatus for hybrid vehicle19 Jul 2022US 11,391,368 B2Aisin Aw Co., Ltd.
- Power transmission apparatus for vehicle21 Dec 2023US 2023/0407961 A1Toyota Jidosha Kabushiki Kaisha
- Hydraulic control valve, hydraulic control system, and transmission2 Nov 2023US 2023/0349399 A1Wuxi Infimotion Technology Co., Ltd.
- Drive apparatus for hybrid vehicle16 Sep 2021US 2021/0285538 A1Aisin Aw Co., Ltd.
- Hydraulic control circuit for a clutch actuator and cooling of a hybrid-powertrain19 Nov 2020US 2020/0361448 A1GM Global Technology Operations LLC
- Hydraulic system and method for controlling pressure in a hydraulic system17 Sep 2020US 2020/0292067 A1Punch Powertrain N.V.
Most cited
By later US patents
- Hydraulic control system for electronic transmission control29US 4,541,308 AFord Motor Company · 1985
- Failsafe hydraulic control system for vehicle automatic transmission26US 4,903,551 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1990
- Apparatus for controlling gear box22US 5,209,141 AKabushiki Kaisha Komatsu Seisakusho · 1993
- Apparatus for controlling gear box21US 5,113,720 AKabushiki Kaisha Komatsu Seisakusho · 1992
- Multiple-transmission-ratio transmission arrangement with gear-shift overlap action of automatically varied duration14US 4,041,809 AVoith Getriebe KG · 1977