F15B 2211/35
Directional control combined with flow control
F15B2211/35 (Directional control combined with flow control) appears on 427 US grants and 262 published applications in this corpus.
Search patents in F15B- Granted patents
- 427
- Published applications
- 262
- Assignees
- 157
- Inventors
- 705
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 1 |
| 2002 | 6 | 4 |
| 2003 | 8 | 20 |
| 2004 | 18 | 13 |
| 2005 | 10 | 5 |
| 2006 | 5 | 10 |
| 2007 | 11 | 5 |
| 2008 | 4 | 9 |
| 2009 | 4 | 3 |
| 2010 | 6 | 7 |
| 2011 | 2 | 2 |
| 2012 | 3 | 2 |
| 2013 | 4 | 7 |
| 2014 | 5 | 8 |
| 2015 | 6 | 13 |
| 2016 | 7 | 9 |
| 2017 | 10 | 14 |
| 2018 | 12 | 16 |
| 2019 | 22 | 15 |
| 2020 | 19 | 16 |
| 2021 | 19 | 24 |
| 2022 | 19 | 15 |
| 2023 | 19 | 19 |
| 2024 | 14 | 13 |
| 2025 | 16 | 9 |
| 2026 | 9 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic system for work machine, and work machine15 Sep 2026US RE51,031 E1Kubota Corporation
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Fluid controller21 Jul 2026US 12,687,183 B2Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic drive system5 May 2026US 12,618,421 B2Kawasaki Jukogyo Kabushiki Kaisha
- Working machine and control method therefor31 Mar 2026US 12,590,596 B2Kubota Corporation
- Asphalt finisher4 Jun 2026US 2026/0152905 A1Sumitomo Construction Machinery Co., Ltd.
- Pressure compensation valve and hydraulic control system28 May 2026US 2026/0145919 A1Zhejiang Senstren Technology Co., LTD
- Method for operating a hydraulic system of an industrial truck having a plurality of hydraulic pumps, and industrial truck9 Apr 2026US 2026/0097944 A1Jungheinrich Aktiengesellschaft
- Hydraulic drive device25 Dec 2025US 2025/0389104 A1Kawasaki Jukogyo Kabushiki Kaisha
- Energy recovery apparatus20 Nov 2025US 2025/0354351 A1Readi Robust Machine Co., Ltd.
Most cited
By later US patents
- Linear servoactuator with integrated transformer position sensor158US 4,628,499 AScientific-Atlanta, Inc. · 1986
- Hydraulic circuit and control system therefor115US 5,138,838 ACaterpillar Inc. · 1992
- Hydraulic system with cross function regeneration90US 6,502,393 B1HUSCO International, Inc. · 2003
- Hydraulic circuit with a return line metering valve and method of operation81US 6,467,264 B1HUSCO International, Inc. · 2002
- Multiple consumer hydraulic mechanisms60US 4,617,854 ALinde Aktiengesellschaft · 1986