F15B 2211/6654
Flow rate control
F15B2211/6654 (Flow rate control) appears on 429 US grants and 428 published applications in this corpus.
Search patents in F15B- Granted patents
- 429
- Published applications
- 428
- Assignees
- 185
- Inventors
- 858
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 12 | 1 |
| 2002 | 11 | 11 |
| 2003 | 11 | 13 |
| 2004 | 14 | 11 |
| 2005 | 7 | 7 |
| 2006 | 6 | 10 |
| 2007 | 6 | 10 |
| 2008 | 8 | 4 |
| 2009 | 6 | 10 |
| 2010 | 3 | 4 |
| 2011 | 4 | 5 |
| 2012 | 2 | 8 |
| 2013 | 6 | 16 |
| 2014 | 7 | 16 |
| 2015 | 13 | 18 |
| 2016 | 13 | 13 |
| 2017 | 14 | 25 |
| 2018 | 10 | 30 |
| 2019 | 40 | 32 |
| 2020 | 32 | 28 |
| 2021 | 36 | 37 |
| 2022 | 27 | 24 |
| 2023 | 19 | 26 |
| 2024 | 30 | 27 |
| 2025 | 32 | 25 |
| 2026 | 18 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Hydraulic system for work machine, and work machine15 Sep 2026US RE51,031 E1Kubota Corporation
- Hydraulic drive device18 Aug 2026US 12,710,061 B2Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic drive device9 Jun 2026US 12,650,136 B2Kawasaki Jukogyo Kabushiki Kaisha
- Aerial work platform, and method for controlling an aerial work platform2 Jun 2026US 12,644,475 B2Haulotte Group
- Hydraulic system management method for machine control13 Aug 2026US 2026/0234895 A1Deere & Company
- Method Of Adjusting Relief Pressure Of Relief Valve For Swing Motor13 Aug 2026US 2026/0234899 A1Caterpillar SARL
- Work Machine13 Aug 2026US 2026/0234907 A1Hitachi Construction Machinery Co., Ltd.
- Operator group, especially for an operator vehicle25 Jun 2026US 2026/0176118 A1Manitou Italia S.R.L.
- Hydraulically powered power systems for controlling variable displacement hydraulic pumps and variable displacement hydraulic motors11 Jun 2026US 2026/0160280 A1Illinois Tool Works Inc.
Most cited
By later US patents
- 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
- System and method for controlling an independent metering valve77US 5,960,695 ACaterpillar Inc. · 1999
- Bi-fluid actuator60US 6,711,984 B22004
- Control valve system for blowout preventers58US 4,509,405 ANL Industries, Inc. · 1985