Adaptive and automatic switching between pneumatic and hydraulic modes
US-2026049623-A1 · Feb 19, 2026 · US
Combined pneumatic-hydraulic systems (F15B11/032 takes precedence)
Combined pneumatic-hydraulic systems (F15B11/032 takes precedence) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F15B11/072 |
| Official title | Combined pneumatic-hydraulic systems (F15B11/032 takes precedence) |
| Display label | Combined pneumatic-hydraulic systems (F15B11/032 takes precedence) |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Counterbalanced retract actuator for landing gear
US-12473080-B2 · Nov 18, 2025 · US
Multi-stage buffer hydraulic cylinder for wave-energy power generation apparatus and multi-stage buffer hydraulic control method
US-2025122859-A1 · Apr 17, 2025 · US
Counterbalanced retract actuator for landing gear
US-2024336353-A1 · Oct 10, 2024 · US
Counterbalanced retract actuator for landing gear
US-12037105-B2 · Jul 16, 2024 · US
Flow rate controller and drive device equipped with same
US-12000413-B2 · Jun 4, 2024 · US
Tunable actuator joint modules having energy recovering quasi-passive elastic actuators with internal valve arrangements
US-11981027-B2 · May 14, 2024 · US
Fluid pressure driving device
US-2024060515-A1 · Feb 22, 2024 · US
Confined plunging liquid jet reactor with energy recovery
US-11898580-B2 · Feb 13, 2024 · US
Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements
US-11759944-B2 · Sep 19, 2023 · US
Counterbalanced retract actuator for landing gear
US-2023257109-A1 · Aug 17, 2023 · US
Pressure sensing blowout preventer control system
US-2023205239-A1 · Jun 29, 2023 · US
Lubrication system for a compressor
US-11680588-B2 · Jun 20, 2023 · US
Potential energy storage and control system for a hydraulically actuated element
US-11668072-B1 · Jun 6, 2023 · US
Flow rate controller and drive device equipped with same
US-2022325728-A1 · Oct 13, 2022 · US
Confined plunging liquid jet reactor with energy recovery
US-2022176327-A1 · Jun 9, 2022 · US
Sensor integrated jamming device
US-2022132971-A1 · May 5, 2022 · US
Lubrication system for a compressor
US-2021324859-A1 · Oct 21, 2021 · US
Apparatus for operating a machine work tool
US-2021317635-A1 · Oct 14, 2021 · US
Tunable Actuator Joint Modules Having Energy Recovering Quasi-Passive Elastic Actuators with Internal Valve Arrangements
US-2021069892-A1 · Mar 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B11/072?
- CPC F15B11/072 is the Cooperative Patent Classification code for “Combined pneumatic-hydraulic systems (F15B11/032 takes precedence).”
- How many patents are filed under CPC F15B11/072 (Combined pneumatic-hydraulic systems (F15B11/032 takes precedence))?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC F15B11/072 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).