Locking sleeve for an actuator
US-2026016028-A1 · Jan 15, 2026 · US
Manual locking or release
Manual locking or release · 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 | F15B2015/267 |
| Official title | {Manual locking or release} |
| Display label | Manual locking or release |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 10 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston lock system for agricultural equipment
US-12279557-B2 · Apr 22, 2025 · US
Pivoting safety stop for a ball-jointed cylinder
US-11997948-B2 · Jun 4, 2024 · US
Actuators
US-2023304517-A1 · Sep 28, 2023 · US
Hydraulic locking device for an exoskeleton joint and exoskeleton joint
US-2023265868-A1 · Aug 24, 2023 · US
Piston lock system for agricultural equipment
US-11703068-B2 · Jul 18, 2023 · US
Cylinder propping system
US-11691856-B2 · Jul 4, 2023 · US
Piston lock system for agricultural equipment
US-2023145934-A1 · May 11, 2023 · US
Piston lock system for agricultural equipment
US-2023146262-A1 · May 11, 2023 · US
Valve and reservoir(s) for pressurized fluid
US-11644119-B2 · May 9, 2023 · US
Pivoting safety stop for a ball-jointed cylinder
US-2023034156-A1 · Feb 2, 2023 · US
Valve and device for storing and dispensing pressurized fluid
US-11560966-B2 · Jan 24, 2023 · US
Valve and reservoir(s) for pressurized fluid
US-11555556-B2 · Jan 17, 2023 · US
Piston lock system for agricultural equipment
US-11473600-B1 · Oct 18, 2022 · US
Valve and reservoir(s) for pressurized fluid
US-11408535-B2 · Aug 9, 2022 · US
Valve and reservoir(s) for pressurized fluid
US-11346462-B2 · May 31, 2022 · US
Valve and device for storing and dispensing pressurized fluid
US-11333267-B2 · May 17, 2022 · US
Valve and reservoir(s) for pressurized fluid
US-11313490-B2 · Apr 26, 2022 · US
Hydraulic tensioning device for a chain drive
US-11125302-B2 · Sep 21, 2021 · US
Valve and reservoir(s) for pressurized fluid
US-2020318744-A1 · Oct 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B2015/267?
- CPC F15B2015/267 is the Cooperative Patent Classification code for “Manual locking or release.”
- How many patents are filed under CPC F15B2015/267 (Manual locking or release)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F15B2015/267 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).