F15B 2211/634
Representing a state of a valve
Official title: representing a state of a valve
F15B2211/634 (Representing a state of a valve) appears on 171 US grants and 185 published applications in this corpus.
Search patents in F15B- Granted patents
- 171
- Published applications
- 185
- Assignees
- 107
- Inventors
- 434
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 1 |
| 2008 | 0 | 2 |
| 2009 | 2 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 6 |
| 2012 | 2 | 2 |
| 2013 | 5 | 3 |
| 2014 | 2 | 4 |
| 2015 | 3 | 2 |
| 2016 | 6 | 4 |
| 2017 | 2 | 9 |
| 2018 | 3 | 13 |
| 2019 | 10 | 10 |
| 2020 | 9 | 26 |
| 2021 | 21 | 26 |
| 2022 | 25 | 17 |
| 2023 | 12 | 15 |
| 2024 | 18 | 16 |
| 2025 | 11 | 13 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Method for providing at least one item of information relating to a hydraulic system25 Aug 2026US 12,716,433 B2KSB SE & Co. KGaA
- Volume follow supply9 Jun 2026US 12,650,135 B2Hydac Fluidtechnik GmbH
- Hydraulic system5 May 2026US 12,618,467 B2Kawasaki Jukogyo Kabushiki Kaisha
- Method of forming a quadrant control valve system, quadrant control valve system and hydraulic system17 Mar 2026US 12,577,970 B2HAWE Hydraulik SE
- Hydraulic Device with a Status Display16 Jul 2026US 2026/0201913 A1Robert Bosch GmbH
- Method and system for hydraulic flow control of automation systems for work implements of work machines26 Mar 2026US 2026/0085494 A1Deere & Company
- Learning for controlling pneumatic driven positioning devices19 Mar 2026US 2026/0078779 A1VAT Holding AG
- Hydraulic system22 Jan 2026US 2026/0022717 A1Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic force fight mitigation8 Jan 2026US 2026/0009408 A1Woodward, Inc.
Most cited
By later US patents
- Control system for load-sensing hydraulic drive circuit65US 4,967,557 AHitachi Construction Machinery Co., Ltd. · 1990
- Electro-hydraulic actuator system52US 7,191,593 B1Northrop Grumman Corporation · 2007
- Pressurized fluid supply system45US 6,209,322 B1Komatsu Ltd. · 2001
- Flow sensing auxiliary pump by-pass valve39US 4,116,577 ANational Machine Company · 1978
- Controller for hydraulic drive machine31US 5,630,317 AKabushiki Kaisha Komatsu Seisakusho · 1997