Aircraft assembly
US-11180244-B2 · Nov 23, 2021 · US
with pressurised main reservoir
with pressurised main reservoir · 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 | F15B1/265 |
| Official title | {with pressurised main reservoir} |
| Display label | with pressurised main reservoir |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 10 |
| 2020 | 14 |
| 2021 | 18 |
| 2022 | 14 |
| 2023 | 9 |
| 2024 | 12 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Equalization device, in particular in the form of a tank
US-11168706-B2 · Nov 9, 2021 · US
Electrohydraulic system for use under water, comprising an electrohydraulic actuator
US-11085466-B2 · Aug 10, 2021 · US
System and method for electro-hydraulic actuation of downhole tools
US-2021215020-A1 · Jul 15, 2021 · US
Electrohydraulic System for Use under Water, Comprising an Electrohydraulic Actuator
US-2021190099-A1 · Jun 24, 2021 · US
Hydraulically actuated differential
US-10975922-B2 · Apr 13, 2021 · US
Movable-blade operation system for hydraulic machine
US-10968882-B2 · Apr 6, 2021 · US
Reservoir for a hydraulic system
US-10962029-B2 · Mar 30, 2021 · US
Single-line control system for a well tool
US-10954733-B2 · Mar 23, 2021 · US
Bootstrap accumulator containing integrated bypass valve
US-10954966-B2 · Mar 23, 2021 · US
Bootstrap hydraulic reservoir
US-10920795-B2 · Feb 16, 2021 · US
Valve mechanism and liquid ejecting system
US-2020378406-A1 · Dec 3, 2020 · US
Single-Line Control System For A Well Tool
US-2020318448-A1 · Oct 8, 2020 · US
Steam valve driving apparatus
US-2020256479-A1 · Aug 13, 2020 · US
Electrohydraulic System with a Hydraulic Spindle and at least One Closed Hydraulic Circuit
US-2020240445-A1 · Jul 30, 2020 · US
Hydraulic drive with rapid stroke and load stroke
US-10718357-B2 · Jul 21, 2020 · US
Hydraulic drive unit
US-2020217334-A1 · Jul 9, 2020 · US
Hydraulic Control Unit For Limited Slip Differential
US-2020200192-A1 · Jun 25, 2020 · US
Fluid expansion tank
US-10690152-B1 · Jun 23, 2020 · US
Bootstrap hydraulic reservoir
US-2020166055-A1 · May 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B1/265?
- CPC F15B1/265 is the Cooperative Patent Classification code for “with pressurised main reservoir.”
- How many patents are filed under CPC F15B1/265 (with pressurised main reservoir)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC F15B1/265 growing?
- Publication counts under this code: 12 in 2024 vs 15 in 2025 (latest complete years).