F16H 61/0267
Layout of hydraulic control circuits
Official title: {Layout of hydraulic control circuits, e.g. arrangement of valves}
F16H61/0267 (Layout of hydraulic control circuits) appears on 242 US grants and 130 published applications in this corpus.
Search patents in F16H- Granted patents
- 242
- Published applications
- 130
- Assignees
- 75
- Inventors
- 442
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 11 |
| 2015 | 2 | 6 |
| 2016 | 12 | 28 |
| 2017 | 8 | 13 |
| 2018 | 23 | 14 |
| 2019 | 21 | 14 |
| 2020 | 10 | 10 |
| 2021 | 8 | 7 |
| 2022 | 7 | 4 |
| 2023 | 3 | 5 |
| 2024 | 6 | 4 |
| 2025 | 4 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Utility vehicle and shift device for vehicle24 Feb 2026US 12,558,955 B2Kawasaki Motors, Ltd.
- Methods and systems for improving the operation of transmissions for motor vehicles7 Oct 2025US 12,435,786 B2Transgo, LLC
- Hydraulic control valve, hydraulic control system, and transmission26 Aug 2025US 12,398,817 B2Wuxi Infimotion Technology Co., Ltd.
- Hydraulic system and method for operating a hydraulic system1 Jul 2025US 12,345,326 B2Schaeffler Technologies AG & Co. KG
- Method and control unit for resolving a tooth-on-tooth position of a positive-locking shifting element of an automated manual transmission14 Jan 2025US 12,196,309 B2ZF Friedrichshafen AG
- Utility vehicle and shift device for vehicle6 Feb 2025US 2025/0042249 A1Kawasaki Motors, Ltd.
- Control device for gearbox8 Aug 2024US 2024/0263696 A1Zf Wind Power Antwerpen N.V.
- Hydraulic system and method for operating a hydraulic system20 Jun 2024US 2024/0200580 A1Schaeffler Technologies AG & Co. KG
- Supply Device for an Apparatus, Apparatus, and Motor Vehicle11 Apr 2024US 2024/0117823 A1Bayerische Motoren Werke Aktiengesellschaft
- Modified vehicle transmission hydraulic valve circuit for forward sprag protection25 Jan 2024US 2024/0026970 A1Sonnax Transmission Company
Most cited
By later US patents
- Method for modifying an original automatic transmission47US 5,624,342 A1997
- Control valve system for a four-speed automatic power transmission transaxle33US 4,637,281 AFord Motor Company · 1987
- Oil pump drive control apparatus33US 6,769,502 B2Aisin Aw Co., Ltd. · 2004
- Oil pressure control system for an automatic transmission system32US 4,106,369 AToyota Jidosha Kogyo Kabushiki Kaisha · 1978
- Multiple ratio overdrive transmission30US 4,347,765 AFord Motor Company · 1982