Safety valve, pneumatic actuator, and vehicle
US-2024353017-A1 · Oct 24, 2024 · US
Cartridge valves
Cartridge 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 | F15B2013/004 |
| Official title | {Cartridge valves} |
| Display label | Cartridge valves |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 17 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vavle
US-2024271642-A1 · Aug 15, 2024 · US
Pilot-operated valve with a position indicator
US-12000500-B2 · Jun 4, 2024 · US
Pressure relief valve with a reverse free flow configuration integrated therewith
US-12000363-B2 · Jun 4, 2024 · US
Pilot-Operated Valve with a Position Indicator
US-2024035586-A1 · Feb 1, 2024 · US
Valve
US-2024011511-A1 · Jan 11, 2024 · US
Pilot device for a directional valve without internal cable connections
US-11754096-B2 · Sep 12, 2023 · US
Pressure Relief Valve with a Reverse Free Flow Configuration Integrated Therewith
US-2023243325-A1 · Aug 3, 2023 · US
Housing block, method for producing a housing block, and core
US-11608841-B2 · Mar 21, 2023 · US
Pneumatic cylinder device with holding valve
US-11572903-B2 · Feb 7, 2023 · US
Relief valve cavity
US-11506297-B2 · Nov 22, 2022 · US
Spool valve
US-2022333709-A1 · Oct 20, 2022 · US
Relief valve cavity
US-2022178454-A1 · Jun 9, 2022 · US
Pneumatic cylinder device with holding valve
US-2022074436-A1 · Mar 10, 2022 · US
Pressure compensator valve
US-11268544-B2 · Mar 8, 2022 · US
Pressure reducing-relieving valve
US-11105433-B2 · Aug 31, 2021 · US
Valve with gradual flow area changes
US-11054046-B2 · Jul 6, 2021 · US
Valve with Gradual Flow Area Changes
US-2021131572-A1 · May 6, 2021 · US
Pressure Reducing-Relieving Valve
US-2021116044-A1 · Apr 22, 2021 · US
Brake hydraulic pressure controller and motorcycle brake system
US-10967842-B2 · Apr 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B2013/004?
- CPC F15B2013/004 is the Cooperative Patent Classification code for “Cartridge valves.”
- How many patents are filed under CPC F15B2013/004 (Cartridge valves)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC F15B2013/004 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).