Actuator assist apparatus, actuator system and method
US-2017343019-A1 · Nov 30, 2017 · US
having accumulator charging devices
having accumulator charging devices · 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 | F15B1/027 |
| Official title | having accumulator charging devices |
| Display label | having accumulator charging devices |
| Total patents | 186 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 22 |
| 2017 | 25 |
| 2018 | 25 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 12 |
| 2022 | 15 |
| 2023 | 11 |
| 2024 | 9 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic system for construction machine
US-9829013-B2 · Nov 28, 2017 · US
Gaseous fuel vent handling apparatus and method
US-2017314513-A1 · Nov 2, 2017 · US
Energy harvesting passive and active suspension
US-9784288-B2 · Oct 10, 2017 · US
Ram air turbine hydraulic release mechanism
US-2017241453-A1 · Aug 24, 2017 · US
Fluid systems for machines with integrated energy recovery circuit
US-2017241445-A1 · Aug 24, 2017 · US
Hydrostatic Drive
US-2017234338-A1 · Aug 17, 2017 · US
Hydraulic axle
US-9719587-B2 · Aug 1, 2017 · US
Method and system for storing and reusing hydraulic energy
US-9677572-B2 · Jun 13, 2017 · US
System and method for hydraulic energy recovery
US-2017130744-A1 · May 11, 2017 · US
System and method of hydraulic energy recovery for machine start-stop and machine ride control
US-2017130739-A1 · May 11, 2017 · US
Hydraulic hybrid circuit with energy storage for excavators or other heavy equipment
US-2017114518-A1 · Apr 27, 2017 · US
Hydraulic hybrid circuit with energy storage for excavators or other heavy equipment
US-9611619-B1 · Apr 4, 2017 · US
Accumulator Driven Accessories
US-2017051763-A1 · Feb 23, 2017 · US
Hydraulic servo-control of a servo-controlled gearbox
US-9574576-B2 · Feb 21, 2017 · US
Hydraulic control unit for a limited slip differential
US-2017045127-A1 · Feb 16, 2017 · US
Online sensor calibration for electrohydraulic valves
US-2017023349-A1 · Jan 26, 2017 · US
Hydraulic system with suction/return filter
US-9551362-B2 · Jan 24, 2017 · US
Vehicular parking lock device
US-2017016534-A1 · Jan 19, 2017 · US
Fluid pressure system, pressure accumulation method of accumulator, and operation method of fluid pressure actuator
US-2017002840-A1 · Jan 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B1/027?
- CPC F15B1/027 is the Cooperative Patent Classification code for “having accumulator charging devices.”
- How many patents are filed under CPC F15B1/027 (having accumulator charging devices)?
- Our database includes 186 publications tagged with this CPC code.
- Is patent activity under CPC F15B1/027 growing?
- Publication counts under this code: 9 in 2024 vs 11 in 2025 (latest complete years).