F15B 13/029
Counterbalance valves
Official title: {Counterbalance valves}
F15B13/029 (Counterbalance valves) appears on 30 US grants and 31 published applications in this corpus.
Search patents in F15B- Granted patents
- 30
- Published applications
- 31
- Assignees
- 21
- Inventors
- 47
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 3 |
| 2019 | 4 | 6 |
| 2020 | 6 | 4 |
| 2021 | 8 | 3 |
| 2022 | 2 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 2 |
| 2025 | 4 | 2 |
By publication year.
Recent patents
- Movement control valve9 Dec 2025US 12,492,752 B2Valvole Italia S.R.L.
- Adjustable load pressure compensation balancing system, end cover and counterbalance valve26 Aug 2025US 12,398,735 B2Jiangsu Advanced Construction Machinery Innovation Center Ltd.
- Counter pressure valve arrangement10 Jun 2025US 12,326,741 B2Parker Hannifin EMEA S.à.r.l.
- Counterbalance valve with enhanced pressure sensing features8 Apr 2025US 12,271,212 B2Sun Hydraulics, LLC
- Hydraulic balancing control valve and ride control system incorporatng same31 Dec 2024US 12,181,055 B2HydraForce, Inc.
- Movement control valve11 Sep 2025US 2025/0283535 A1Valvole Italia S.R.L.
- Counterbalance Valve with Enhanced Pressure Sensing Features16 Jan 2025US 2025/0021114 A1Sun Hydraulics, LLC
- Adjustable load pressure compensation balancing system, end cover and counterbalance valve11 Apr 2024US 2024/0117824 A1Jiangsu Advanced Construction Machinery Innovation Center Ltd.
- Counter pressure valve arrangement21 Mar 2024US 2024/0094750 A1Parker Hannifin EMEA S.à.r.l.
- Counter pressure valve arrangement13 Jul 2023US 2023/0221737 A1Parker Hannifin EMEA S.à.r.l.
Most cited
By later US patents
- Electrohydraulic counterbalance and pressure relief valve13US 10,437,269 B1Sun Hydraulics, LLC · 2019
- Counterbalance valve with dual or triple pilot ratio11US 9,850,919 B2Sun Hydraulics, LLC · 2017
- Two-port electrohydraulic counterbalance valve7US 10,683,879 B1Sun Hydraulics, LLC · 2020
- Hydraulic system with a counterbalance valve configured as a meter-out valve and controlled by an independent pilot signal5US 10,428,845 B1Sun Hydraulics, LLC · 2019
- Pneumatic valve assembly and method5US 9,611,871 B22017