F15B 2211/56
Control of an upstream pressure
F15B2211/56 (Control of an upstream pressure) appears on 37 US grants and 28 published applications in this corpus.
Search patents in F15B- Granted patents
- 37
- Published applications
- 28
- Assignees
- 40
- Inventors
- 79
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 1 |
| 2018 | 0 | 3 |
| 2019 | 5 | 3 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Counter pressure valve arrangement10 Jun 2025US 12,326,741 B2Parker Hannifin EMEA S.à.r.l.
- Flow control block for use with a vacuum material handler10 Sep 2024US 12,085,099 B1Vacuworx Global, LLC
- Counter pressure valve arrangement20 Feb 2024US 11,906,986 B2Parker Hannifin EMEA S.à.r.l.
- Forklift truck14 Nov 2023US 11,814,275 B2Doosan Corporation
- Vent with valve17 May 2022US 11,333,177 B2Buerkert Werke GmbH
- A pneumatic system for a vehicle4 Dec 2025US 2025/0369459 A1Volvo Truck Corporation
- Counter pressure valve arrangement21 Mar 2024US 2024/0094750 A1Parker Hannifin EMEA S.à.r.l.
- Counter pressure valve arrangement13 Jul 2023US 2023/0221737 A1Parker Hannifin EMEA S.à.r.l.
- Forklift truck23 Dec 2021US 2021/0395062 A1Doosan Corporation
- Vent with valve27 May 2021US 2021/0156406 A1Buerkert Werke GmbH
Most cited
By later US patents
- Regenerative adaptive fluid motor control77US 6,349,543 B12002
- Drive device48US 6,543,223 B2Festo AG & Co. · 2003
- Pressure control valve having intrinsic mechanical feedback system28US 7,509,905 B2Raytheon Sarcos, LLC · 2009
- Hydraulic drive system20US 5,873,245 AHitachi Construction Machinery Co., Ltd. · 1999
- Valve apparatus and hydraulic circuit system16US 5,146,747 AHitachi Construction Machinery Co., Ltd. · 1992