F15B 13/024
Pressure relief valves
Official title: {Pressure relief valves}
F15B13/024 (Pressure relief valves) appears on 210 US grants and 226 published applications in this corpus.
Search patents in F15B- Granted patents
- 210
- Published applications
- 226
- Assignees
- 147
- Inventors
- 501
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 5 |
| 2006 | 2 | 1 |
| 2007 | 5 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 3 |
| 2013 | 4 | 4 |
| 2014 | 2 | 7 |
| 2015 | 7 | 12 |
| 2016 | 7 | 13 |
| 2017 | 8 | 15 |
| 2018 | 10 | 30 |
| 2019 | 30 | 18 |
| 2020 | 36 | 21 |
| 2021 | 16 | 17 |
| 2022 | 19 | 14 |
| 2023 | 15 | 16 |
| 2024 | 14 | 16 |
| 2025 | 18 | 15 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation22 Sep 2026US 12,742,386 B2Halliburton Energy Services.Inc.
- Proportional relief system for a power take-off8 Sep 2026US 12,731,447 B2Ion Engineering Fluid Power Systems LLC
- Implement braking system4 Aug 2026US 12,698,786 B2Doosan Bobcat North America, Inc.
- Relief valve4 Aug 2026US 12,698,841 B2Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic jack assemblies28 Jul 2026US 12,692,139 B2
- Hydraulic System8 Oct 2026US 2026/0309169 A1Caterpillar SARL
- Lift device and method of controlling24 Sep 2026US 2026/0285663 A1Terex South Dakota, Inc.
- Variable blade float3 Sep 2026US 2026/0258636 A1Deere & Company
- Hydraulic System, Work Vehicle, Control Method, and Computer Program4 Jun 2026US 2026/0152925 A1Kubota Corporation
- Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation7 May 2026US 2026/0125979 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Pressure relief latching solenoid valve36US 6,164,322 ASaturn Electronic & Engineering, Inc. · 2000
- Relief valve25US 5,050,636 AKawasaki Jukogyo Kabushiki Kaisha · 1991
- Multi-operational valve24US 9,016,317 B2Milwaukee Electric Tool Corporation · 2015
- Two-stage pressure relief valve22US 7,165,950 B2Bell Helicopter Textron Inc. · 2007
- Monotube active suspension system having different system layouts for controlling pump flow distribution19US 10,434,835 B22019