F15B 20/008
Valve failure
Official title: {Valve failure}
F15B20/008 (Valve failure) appears on 188 US grants and 215 published applications in this corpus.
Search patents in F15B- Granted patents
- 188
- Published applications
- 215
- Assignees
- 132
- Inventors
- 468
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 1 |
| 2003 | 3 | 4 |
| 2004 | 3 | 7 |
| 2005 | 4 | 8 |
| 2006 | 5 | 4 |
| 2007 | 5 | 8 |
| 2008 | 5 | 11 |
| 2009 | 4 | 5 |
| 2010 | 7 | 3 |
| 2011 | 4 | 5 |
| 2012 | 7 | 3 |
| 2013 | 4 | 7 |
| 2014 | 4 | 9 |
| 2015 | 4 | 5 |
| 2016 | 9 | 9 |
| 2017 | 6 | 8 |
| 2018 | 10 | 17 |
| 2019 | 10 | 16 |
| 2020 | 16 | 11 |
| 2021 | 11 | 14 |
| 2022 | 12 | 9 |
| 2023 | 11 | 20 |
| 2024 | 13 | 12 |
| 2025 | 9 | 12 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Movement control device with double balancing21 Apr 2026US 12,607,206 B2Manitou Italia S.R.L.
- Compact hydraulically centered three-way transfer valve7 Apr 2026US 12,595,854 B2Hamilton Sundstrand Corporation
- Floating control system for fixed displacement pump system24 Feb 2026US 12,560,183 B2Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Manifold system for 2003 configuration17 Feb 2026US 12,553,454 B2Rotex Automation Limited
- Residual pressure exhaust air circuit and residual pressure exhaust valve10 Feb 2026US 12,546,413 B2SMC Corporation
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Triple redundancy assembly in process control systems18 Jun 2026US 2026/0169506 A1Rotex Automation Limited
- Turbo engine including a system to control pitch of a propeller blade4 Jun 2026US 2026/0153033 A1General Electric Company
- Transfer valve with dual authority control porting7 May 2026US 2026/0126060 A1Hamilton Sundstrand Corporation
- Compact hydraulically centered three-way transfer valve19 Mar 2026US 2026/0078828 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Electronically controlled hydraulic actuating system51US 6,625,982 B2Airbus France · 2003
- Hydraulic system with a dynamic seal32US 9,651,067 B2Caterpillar Inc. · 2017
- Valve arrangement25US 7,398,796 B2Sauer-Danfoss ApS · 2008
- Redundant control system for a work vehicle21US 5,299,420 ACaterpillar Inc. · 1994
- Fail-safe closure system for remotely operable valve actuator19US 6,053,202 AFMC Corporation · 2000