F16H 61/4061
Control related to directional control valves
Official title: Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits
F16H61/4061 (Control related to directional control valves) appears on 94 US grants and 69 published applications in this corpus.
Search patents in F16H- Granted patents
- 94
- Published applications
- 69
- Assignees
- 60
- Inventors
- 188
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 3 |
| 2009 | 4 | 5 |
| 2010 | 1 | 5 |
| 2011 | 2 | 1 |
| 2012 | 6 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 6 |
| 2015 | 2 | 11 |
| 2016 | 9 | 2 |
| 2017 | 5 | 2 |
| 2018 | 1 | 7 |
| 2019 | 2 | 3 |
| 2020 | 5 | 4 |
| 2021 | 3 | 3 |
| 2022 | 3 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Open hydraulic assistance system25 Aug 2026US 12,716,489 B2Poclain Hydraulics Industrie
- Crane having a closed hydraulic circuit11 Nov 2025US 12,467,532 B2Manitowoc Crane Group France SAS
- Fan drive device with proportional valve30 Sep 2025US 12,429,070 B2Robert Bosch GmbH
- Draper head with securing action for a height-adjustable reel11 Jun 2024US 12,004,453 B2Carl Geringhoff GmbH & Co. KG
- Power split and variable creep drive system for street sweeper or like specialty vehicle20 Dec 2022US 11,530,741 B2Federal Signal Corporation
- Electromagnetically controlled hydraulic transmission system with gears for vehicles, with optional electrical generation and propulsion20 Feb 2025US 2025/0060028 A1
- Fan Drive Device with Proportional Valve18 Jul 2024US 2024/0240653 A1Robert Bosch GmbH
- Improved open hydraulic assistance system26 Jan 2023US 2023/0027957 A1Poclain Hydraulics Industrie
- Hydraulic Driving Apparatus3 Feb 2022US 2022/0034067 A1Hitachi Construction Machinery Co., Ltd.
- Draper Head with Securing Action for a Height-Adjustable Reel15 Apr 2021US 2021/0105944 A1Carl Geringhoff GmbH & Co. KG
Most cited
By later US patents
- Continuous hydrostatic-mechanical branch power split transmission particularly for power vehicles70US 5,683,322 A1997
- Control system for automatically controlling actuators of an excavator57US 5,361,211 ASamsung Heavy Industries Co., Ltd. · 1994
- Hydraulic system for transmitting power from an internal combustion engine to the wheels of a motor vehicle54US 4,215,545 ACentro Ricerche Fiat S.p.A. · 1980
- Method of controlling speed change of hydraulic drive device for vehicle and speed change device47US 5,784,883 AKomatsu Ltd. · 1998
- Hydrostatic transmissions40US 5,137,100 AUltra Hydraulics Limited · 1992