Spool valve
US-2021324961-A1 · Oct 21, 2021 · US
Channels for fluid
Channels for fluid · 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 | F15B13/0871 |
| Official title | {Channels for fluid} |
| Display label | Channels for fluid |
| Total patents | 102 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 13 |
| 2019 | 19 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 13 |
| 2024 | 5 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cap with electromagnetic proportional valve
US-2020363827-A1 · Nov 19, 2020 · US
Integrated multiple valve manifold
US-10823299-B2 · Nov 3, 2020 · US
Manifold assembly for electromagnetic valve and electromagnetic valve cluster using same
US-2020309279-A1 · Oct 1, 2020 · US
Valve device
US-2020166148-A1 · May 28, 2020 · US
Variable pressure device and actuator
US-10656662-B2 · May 19, 2020 · US
Cylinder drive manifold device and cylinder drive apparatus
US-2020149560-A1 · May 14, 2020 · US
Hydraulic Distributor Block, Hydraulic Assembly, and Method
US-2020124196-A1 · Apr 23, 2020 · US
Hydraulic block
US-10626891-B2 · Apr 21, 2020 · US
Housing Block, Method for Producing a Housing Block, and Core
US-2020096020-A1 · Mar 26, 2020 · US
Fluid control device
US-10557484-B2 · Feb 11, 2020 · US
Open center control valve
US-10502240-B2 · Dec 10, 2019 · US
Hydraulic line routing plate
US-10502097-B2 · Dec 10, 2019 · US
Fluid pressure valve
US-2019360603-A1 · Nov 28, 2019 · US
Valve assembly
US-10480543-B2 · Nov 19, 2019 · US
Rotary manifold
US-2019345958-A1 · Nov 14, 2019 · US
Multiple valve core, multiple valve and valve arrangement
US-10465722-B2 · Nov 5, 2019 · US
Open Center Control Valve
US-2019257325-A1 · Aug 22, 2019 · US
Hydraulic manifold channel plug
US-10345828-B2 · Jul 9, 2019 · US
Open center control valve
US-10323659-B2 · Jun 18, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B13/0871?
- CPC F15B13/0871 is the Cooperative Patent Classification code for “Channels for fluid.”
- How many patents are filed under CPC F15B13/0871 (Channels for fluid)?
- Our database includes 102 publications tagged with this CPC code.
- Is patent activity under CPC F15B13/0871 growing?
- Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).