F15B 2211/324
Manually
Official title: manually, e.g. by using a lever or pedal
F15B2211/324 (Manually) appears on 220 US grants and 111 published applications in this corpus.
Search patents in F15B- Granted patents
- 220
- Published applications
- 111
- Assignees
- 128
- Inventors
- 371
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 5 | 4 |
| 2003 | 4 | 7 |
| 2004 | 3 | 7 |
| 2005 | 11 | 4 |
| 2006 | 3 | 5 |
| 2007 | 1 | 3 |
| 2008 | 2 | 3 |
| 2009 | 5 | 8 |
| 2010 | 4 | 3 |
| 2011 | 4 | 3 |
| 2012 | 2 | 1 |
| 2013 | 4 | 2 |
| 2014 | 2 | 3 |
| 2015 | 5 | 5 |
| 2016 | 2 | 3 |
| 2017 | 3 | 6 |
| 2018 | 4 | 2 |
| 2019 | 6 | 5 |
| 2020 | 9 | 10 |
| 2021 | 6 | 7 |
| 2022 | 5 | 5 |
| 2023 | 6 | 3 |
| 2024 | 5 | 5 |
| 2025 | 3 | 5 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic mobile cart for produce harvesting18 Aug 2026US 12,709,152 B2
- Hydraulic fluid release valve assemblies21 Apr 2026US 12,607,271 B2Roadtek Enterprises Inc.
- Synchronized hybrid clamp force controller for lift truck attachment17 Mar 2026US 12,577,091 B2Cascade Corporation
- Emergency-operation valve block for a mobile crane20 Jan 2026US 12,528,677 B2Manitowoc Crane Group France SAS
- Actuator and spool type directional control valve13 Jan 2026US 12,523,318 B2Danfoss Power Solutions (Zhejiang) Co. Ltd.
- Servo valve11 Jun 2026US 2026/0160345 A1Microtecnica S.R.L.
- Gangway having self-raising assembly26 Feb 2026US 2026/0054947 A1Safe Rack LLC
- Hydraulic jack assemblies25 Sep 2025US 2025/0296823 A1Roadtek Enterprises Inc.
- Hydraulic fluid release valve assemblies25 Sep 2025US 2025/0297688 A1Rubicon Inc.
- Ground pressure control for agricultural implement29 May 2025US 2025/0169388 A1
Most cited
By later US patents
- Hydraulic system providing down force on a work implement109US 6,460,623 B1Caterpillar Inc. · 2002
- Fast response load sense control system41US 4,986,071 AKomatsu Dresser Company · 1991
- Pressure compensating hydraulic control system41US 5,579,642 AHUSCO International, Inc. · 1996
- Hydraulic driving apparatus33US 5,083,430 AHitachi Construction Machinery Co., Ltd. · 1992
- Stud tensioning device for flange cover33US 6,223,925 B1Foster Wheeler Corporation · 2001