F15B 2211/523
Manually
Official title: manually, e.g. by using a lever or pedal
F15B2211/523 (Manually) appears on 16 US grants and 16 published applications in this corpus.
Search patents in F15B- Granted patents
- 16
- Published applications
- 16
- Assignees
- 18
- Inventors
- 55
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pneumatic gauge and pressure control device and pneumatic system including same4 Aug 2026US 12,698,787 B2
- Work machine11 Feb 2025US 12,221,769 B2Hitachi Construction Machinery Co., Ltd.
- System and method for exhausting stored energy from a pneumatic subsystem of a railcar2 Nov 2021US 11,162,593 B1Lexair, Inc.
- Engine-driven oil pump9 Feb 2021US 10,914,326 B2Kudos Mechanical Co., Ltd.
- Pressure-limiting unit for a pressure booster as well as a pressure booster for driving hydraulic tools13 Oct 2020US 10,801,631 B2TKR Spezialwerkzeuge GmbH
- Wing force management system for an agricultural implement14 Aug 2025US 2025/0255209 A1CNH Industrial America LLC
- Advanced precision construction features on pilot operated machines12 Jun 2025US 2025/0188701 A1Deere & Company
- Ground pressure control for agricultural implement29 May 2025US 2025/0169388 A1
- Pneumatic gauge and pressure control device and pneumatic system including same30 Jan 2025US 2025/0035137 A1
- Work Machine28 Apr 2022US 2022/0127823 A1Hitachi Construction Machinery Co., Ltd.
Most cited
By later US patents
- Hydraulic control system17US 4,129,987 AGresen Manufacturing Company · 1978
- Hand tools including a hydraulic jack for the control of working members16US 4,823,588 ASociete D'Etudes Et De Methode D'Applications · 1989
- Override control system for a controlled slippable clutch10US 3,951,009 ACaterpillar Tractor Co. · 1976
- Low-effort proportional control valve8US 3,977,301 ACaterpillar Tractor Co. · 1976
- Speed control device for a pneumatic cylinder8US 5,184,535 A1993