F15B 20/005
Leakage
Official title: {Leakage; Spillage; Hose burst}
F15B20/005 (Leakage) appears on 147 US grants and 168 published applications in this corpus.
Search patents in F15B- Granted patents
- 147
- Published applications
- 168
- Assignees
- 121
- Inventors
- 377
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 3 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 2 | 3 |
| 2009 | 0 | 3 |
| 2010 | 0 | 4 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 3 |
| 2014 | 1 | 6 |
| 2015 | 5 | 5 |
| 2016 | 3 | 8 |
| 2017 | 6 | 9 |
| 2018 | 5 | 12 |
| 2019 | 7 | 15 |
| 2020 | 11 | 14 |
| 2021 | 8 | 17 |
| 2022 | 14 | 10 |
| 2023 | 11 | 18 |
| 2024 | 14 | 9 |
| 2025 | 15 | 9 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure accumulator1 Sep 2026US 12,723,602 B2Hydac Technology GmbH
- Hydraulic cylinder monitoring11 Aug 2026US 12,704,137 B2The Heil Co.
- Hydraulic control system and method with electro-proportional pressure valve and integral check5 May 2026US 12,618,424 B2HydraForce, Inc.
- Force overshoot and other pressure disturbance mitigation in pneumatic force control devices21 Apr 2026US 12,605,849 B2ATI Industrial Automation, Inc.
- Stability and control augmentation system actuator10 Mar 2026US 12,570,393 B2Microtecnica S.R.L.
- Leakage cause discrimination system and leakage cause discrimination method20 Aug 2026US 2026/0243281 A1KYB Corporation
- Hydraulic Isolation Cylinder-Based System6 Aug 2026US 2026/0226921 A1SRI Energy, Inc.
- Flow Analysis-Based Cylinder Monitoring Apparatus and Method16 Jul 2026US 2026/0201914 A1LG Energy Solution, Ltd.
- Hydraulic System having an Inertia Charging Arrangement25 Jun 2026US 2026/0177086 A1Robert Bosch GmbH
- Electro-Hydraulic Actuator Assembly with a Fluid Access Port11 Jun 2026US 2026/0160279 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Fail-safe actuator device25US 4,480,811 AVSI Corporation · 1984
- Fail-safe actuator and hydraulic system incorporating the same22US 4,295,630 AGreer Hydraulics, Inc. · 1981
- Method for detecting a burst hose in a hydraulic system17US 9,933,328 B2Eaton Intelligent Power Limited · 2018
- System and method for electro-hydraulic actuation of downhole tools14US 11,274,526 B2Schlumberger Technology Corporation · 2022
- Leak-detecting hydraulic system13US 4,522,109 AJ. I. Case Company · 1985