Shutter Valves
US-2022364654-A1 · Nov 17, 2022 · US
Shuttle valves
Shuttle valves · 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 | F15B13/028 |
| Official title | {Shuttle valves} |
| Display label | Shuttle valves |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 13 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air cylinder, head cover, and rod cover
US-2022333622-A1 · Oct 20, 2022 · US
Flow rate controller and drive device equipped with same
US-2022325728-A1 · Oct 13, 2022 · US
Switching valve, valve apparatus, holding apparatus, lithography apparatus, and method of manufacturing article
US-11466787-B2 · Oct 11, 2022 · US
Additive manufacturing and generative design hydraulic shuttle valve
US-2022299122-A1 · Sep 22, 2022 · US
Shuttle valve spool assembly
US-2022213966-A1 · Jul 7, 2022 · US
Redundant hydraulic power pack architecture for aircraft main landing gear system
US-2022169367-A1 · Jun 2, 2022 · US
System for charging and discharging at least one hydraulic accumulator
US-11313387-B2 · Apr 26, 2022 · US
Pilot close vent valve
US-11293462-B2 · Apr 5, 2022 · US
Shuttle valve
US-11261977-B2 · Mar 1, 2022 · US
System for charging and discharging at least one hydraulic accumulator
US-2021317846-A1 · Oct 14, 2021 · US
Quick coupler circuit and quick coupler attachment/detachment method
US-11105063-B2 · Aug 31, 2021 · US
Shuttle valve with detent mechanism
US-11098805-B1 · Aug 24, 2021 · US
Switching valve, valve apparatus, holding apparatus, lithography apparatus, and method of manufacturing article
US-2021190219-A1 · Jun 24, 2021 · US
Hydraulic system for working machine
US-10975893-B2 · Apr 13, 2021 · US
Shuttle valve with damping
US-10914402-B2 · Feb 9, 2021 · US
Shuttle Valve
US-2020378506-A1 · Dec 3, 2020 · US
Braking system for a dual landing gear aircraft
US-10829210-B2 · Nov 10, 2020 · US
Hydraulic system for an agricultural implement incorporating implement-based hydraulic load sensing
US-10820470-B2 · Nov 3, 2020 · US
Neutral valve and valve assembly including same
US-10774848-B2 · Sep 15, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B13/028?
- CPC F15B13/028 is the Cooperative Patent Classification code for “Shuttle valves.”
- How many patents are filed under CPC F15B13/028 (Shuttle valves)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC F15B13/028 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).