F15B 2211/6057
Using directional control valves
Official title: using directional control valves
F15B2211/6057 (Using directional control valves) appears on 73 US grants and 40 published applications in this corpus.
Search patents in F15B- Granted patents
- 73
- Published applications
- 40
- Assignees
- 36
- Inventors
- 110
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 2 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 8 |
| 2019 | 6 | 3 |
| 2020 | 5 | 1 |
| 2021 | 3 | 3 |
| 2022 | 6 | 0 |
| 2023 | 2 | 3 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Floating control system for fixed displacement pump system24 Feb 2026US 12,560,183 B2Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Smart flow dual pump hydraulic system8 Oct 2024US 12,110,912 B2CNH Industrial America LLC
- Smart flow dual pump hydraulic system26 Sep 2023US 11,767,860 B2CNH Industrial America LLC
- Variable system pressure based on implement position30 May 2023US 11,661,723 B1Caterpillar Underground Mining Pty. Ltd.
- Hydraulic system and method for controlling a hydraulic system6 Sep 2022US 11,434,936 B2Putzmeister Engineering GmbH
- Valve Assembly for Double-Acting Hoisting Mechanism29 Jan 2026US 2026/0029001 A1Robert Bosch GmbH
- Hydraulic assembly and commercial vehicle1 May 2025US 2025/0135880 A1Deere & Company
- Hydraulic assembly and commercial vehicle1 May 2025US 2025/0137469 A1Deere & Company
- Floating control system for fixed displacement pump system30 Jan 2025US 2025/0035133 A1Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Smart flow dual pump hydraulic system28 Dec 2023US 2023/0417260 A1CNH Industrial America LLC
Most cited
By later US patents
- Hydraulic control system for downhole tools100US 6,536,530 B2Halliburton Energy Services.Inc. · 2003
- Hydraulic circuit utilizing a compensator pressure selecting value51US 5,209,063 AKabushiki Kaisha Komatsu Seisakusho · 1993
- Control for load sharing pumps49US 4,345,436 ACaterpillar Tractor Co. · 1982
- Load sensing steering system with dual power source39US 4,044,786 AEaton Corporation · 1977
- Swing-frame motor flow and sensed load pressure control system for hydraulic excavator33US 4,938,023 AShin Caterpillar Mitsubishi Ltd. · 1990